Appendix: Soil profile descriptions
Table A.1--Description of core 3 at site 14PA307 at locality PR-1
Location: Pawnee County, KS; NE NE sec. 6, R. 16 W., T. 22 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: alfalfa
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-20 | Ap | I | Brown (10YR 4/3) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; friable; many fine roots; strong effervescence; clear boundary. |
20-33 | A | I | Very dark gray (10YR 3/1) silt loam, very dark grayish-brown (10YR 3/2) moist; weak medium and fine granular structure; friable; many fine roots; weak effervescence; gradual boundary. |
33-43 | AB | I | Brown (10YR 4/3) silt loam, dark-brown (10YR 3/3) moist; weak medium granular structure; friable; common fine roots; strong effervescence; gradual boundary. |
43-58 | Bk1 | I | Brown (10YR 4/3) light silty clay loam, dark-brown (10YR 3/3) moist; weak medium subangular blocky structure parting to fine granular structure; friable; common threads of calcium carbonate; common fine pores; few earthworm casts; few fine roots; few bone fragments at 45 cm; strong effervescence; gradual boundary. |
58-80 | Bk2 | I | Brown (10YR 5/3) loam, brown (10YR 4/3) moist; weak fine subangular blocky structure parting to fine granular structure; friable; common threads and films of calcium carbonate; many fine pores; many earthworm casts; few bone fragments at 60-63 ern; strong effervescence; gradual boundary. |
80-170 | BCk | I | Pale-brown (10YR 6/3) loam, brown (10YR 4/3) moist; weak medium granular structure to massive; friable; common threads and films of calcium carbonate; many fine pores; many earthworm casts; few fine roots; strong effervescence; abrupt boundary. |
170-220 | 2Akb | II | Dark-grayish-brown (10YR 5/2) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; friable; many prominent films and threads of calcium carbonate; common fine pores; common flecks of charcoal; strong effervescence; gradual boundary. |
220-226 | 2ACkb | II | Grayish-brown (10YR 5/2) fine sandy loam, dark-brown (10YR 3/3) moist; weak very fine granular structure; very friable; common threads of calcium carbonate; common fine pores; strong effervescence; gradual boundary. |
226-275 | 2Ck | II | Grayish-brown (10YR 5/2) loamy fine sand, dark-brown (10YR 3/3) moist; massive; soft; common fine threads of calcium carbonate; common fine pores; strong effervescence; abrupt boundary. |
275-328 | 3Bkb | III | Brown (10YR 5/3) silty clay, dark-brown (10YR 3/3) moist; moderate fine and medium subangular blocky structure; firm; many prominent threads of calcium carbonate; common fine pores; common earthworm casts; strong effervescence; gradual boundary. |
328-352 | 3BCkb | III | Brown (10YR 5/3) silty clay loam, brown (10YR 4/3) moist; weak fine subangular blocky structure; firm; many films and threads of calcium carbonate; many fine pores; common earthworm casts; strong effervescence; gradual boundary. |
352-419 | 3C1 | III | Pale-brown (10YR 6/3) laminated silt and very fine sand, brown (10YR 4/3) moist; common fine distinct dark-yellowish-brown (10YR 4/6) and yellowish-brown (10YR 5/8) mottles; massive; soft, friable; few fine pores; weak effervescence; abrupt boundary. |
419-792 | 3C2 | III | Light-yellowish-brown (10YR 6/4) medium sand, yellowish-brown (10YR 5/4) moist; single-grained; loose; noneffervescent; abrupt boundary. |
792-853 | 3Cg | III | Grayish-brown (2.5Y 4/2) sand and gravel in clayey matrix, very dark grayish-brown (2.5Y 3/2) moist; massive; firm; weak effervescence; abrupt boundary. |
853 | 4R | Dakota Sandstone. |
Table A.2--Description of core 1 at locality PR-2
Location: Pawnee County, KS; NW NW sec. 32, R. 17 W. ,T. 21 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: native grasses
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-20 | Ap | I | Dark-grayish-brown (10YR 4/2) light silty clay loam, very dark brown (10YR 2/2) moist; weak fine granular structure; friable; common fine roots; weak effervescence; clear smooth boundary. |
20-61 | AC | I | Brown (10YR 5/3) to grayish-brown (10YR 5/2) silt loam, dark-grayish-brown (10YR 4/2) moist; weak fine granular structure; friable; common fine roots; many earthworm casts; strong effervescence; abrupt boundary. |
61-86 | 2Akb | II | Dark-grayish-brown (10YR 4/2) light silty clay loam, very dark grayish-brown (10YR 3/2) moist; weak medium and fine granular structure; friable; few fine roots; few films of calcium carbonate; common earthworm casts; strong effervescence; gradual boundary. |
86-96 | 2ABkb | II | Dark-grayish-brown (10YR 4/2) light silty clay loam, very dark grayish-brown (10YR 3/2) moist; weak fine subangular blocky structure; friable; few fine roots; common films and threads of calcium carbonate; few earthworm casts; matrix has weak effervescence; gradual smooth boundary. |
96-142 | 2Bkb1 | II | Brown (10YR 4/3) heavy silty clay loam, dark-brown (10YR 3/3) moist; weak medium subangular blocky structure; friable; few fine roots; common films and threads of calcium carbonate along ped faces; few fine hard calcium carbonate concretions; common fine pores; common pressure faces; matrix is noneffervescent; gradual boundary. |
142-190 | 2Bkb2 | II | Brown (10YR 4/3) heavy silty clay loam, dark-brown (10YR 3/3) moist; weak medium subangular blocky structure; friable; many prominent films of calcium carbonate; common fine irregular soft masses of carbonate; few fine hard carbonate nodules; common fine pores; common pressure faces; matrix is noneffervescent; gradual boundary. |
190-212 | 2BCkb | II | Brown (10YR 4/3) silty clay loam, dark-brown (10YR 3/3) moist; weak fine subangular blocky structure; friable; common films and threads and few fine hard concretions of calcium carbonate; common pressure faces; common fine pores; matrix is noneffervescent; gradual boundary. |
212-292 | 2C1 | II | Pale-brown (10YR 6/3) and brown (10YR 5/3) laminated silt loam, brown (10YR 4/3) and dark-brown (10YR 3/3) moist; massive; friable; few fine pores; weak effervescence; gradual boundary. |
292-345 | 2C2 | II | Brown (10YR 5/3) silt loam, dark-brown (10YR 3/3) moist; massive; friable; few pale-brown (10YR 6/3) lenses (<3 mm thick) of silt; few fine pores; noneffervescent; abrupt boundary. |
345-434 | 3Ab | III | Dark-grayish-brown (10YR 4/2) silty clay loam, very dark brown (10YR 2/2) moist; weak medium and fine granular structure; friable; few fine pores; noneffervescent; gradual boundary. |
434-447 | 3ABkb | III | Brown (10YR 4/3) silty clay loam, dark-brown (10YR 3/3) moist; weak medium granular and fine subangular blocky structure; friable; common films and threads of calcium carbonate; few fine pores; moderate effervescence; gradual boundary. |
447-492 | 3Bkb | III | Light-yellowish-brown (2.5Y 6/4) silty clay, light-olive-brown (2.5Y 5/4) moist; few fine faint olive-yellow (2.5Y 6/6) and strong brown (7.5YR 5/8) mottles; moderate medium and fine subangular blocky structure; firm; many prominent films and threads and common soft irregular masses of calcium carbonate; few fine pores; few pressure faces; matrix is noneffervescent; gradual boundary. |
492-853+ | 3Cg | III | Grayish-brown (2.5Y 5/2) silty clay loam, dark-grayish-brown (2.5Y 3/2) moist; few fine faint olive-yellow (2.5Y 6/6) and strong brown (7.5YR 5/8) mottles; massive; firm; few fine pores; weak effervescence. |
Table A.3--Description of core 2 at locality PR-2
Location: Pawnee County, KS; SW SE sec. 29, R. 17 W., T. 21 S.
Landscape position: T-3 terrace
Slope: 1 %
Vegetation: wheat stubble
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-20 | Ap | I | Brown (10YR 5/3) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; slightly hard, friable; many fine roots; many fine pores; noneffervescent; abrupt boundary. |
20-42 | A | I | Grayish-brown (10YR 5/2) silt loam, very dark grayish-brown (10YR 3/2) moist; moderate fine and medium granular structure; slightly hard, friable; many fine roots; many fine pores; noneffervescent; gradual boundary. |
42-71 | BAk | I | Grayish-brown (10YR 5/2) heavy silt loam, very dark grayish-brown (10YR 3/2) moist; moderate coarse columnar parting to moderate fine subangular blocky structure; hard, firm; common fine roots; common fine pores; common films and threads of calcium carbonate; common fine irregular soft masses of calcium carbonate; strong effervescence; gradual boundary. |
71-109 | Btk1 | I | Brown (10YR 5/3) silty clay loam, dark-brown (10YR 3/3) moist; common medium distinct grayish-brown (10YR 5/2) mottles; moderate medium subangular blocky structure; hard, firm; few fine roots; common fine pores; few threads of calcium carbonate; few fine irregular soft masses of calcium carbonate; matrix is noneffervescent; gradual boundary. |
109-190 | Btk2 | I | Brown (10YR 5/3) light silty clay loam, very dark brown (10YR 3/3) moist; moderate medium subangular blocky structure; hard, firm; common fine pores; few threads of calcium carbonate; many distinct discontinuous very dark grayish-brown (10YR 3/2) clay films on vertical ped faces and in pores; matrix is noneffervescent; gradual boundary. |
190-215 | Bk | I | Pale-brown (10YR 6/3) to brown (10YR 5/3) silt loam, brown (10YR 5/3) moist; common fine faint light-yellowish-brown (10YR 6/4) mottles; weak fine subangular blocky structure; hard, firm; few threads of calcium carbonate; many fine pores; matrix is noneffervescent; gradual boundary. |
215-292 | BCk | I | Light-yellowish-brown (10YR 6/4) silt loam, brown (10YR 5/3) moist; massive; slightly hard, friable; many fine pores; few threads of calcium carbonate; common black (10YR 2/1) stains along root channels; matrix is noneffervescent; abrupt boundary. |
292-355 | 2Btb1 | II | Reddish-yellow (7.5YR 6/6) heavy silty clay loam, strong brown (7.5YR 4/6) moist; moderate medium subangular blocky structure; very hard, very firm; common fine pores; common prominent discontinuous dark-brown (7.5YR 3/2) clay flows on vertical ped faces and in pores; few black (10YR 2/1) stains in pores; noneffervescent; gradual boundary. |
355-457 | 2Btb2 | II | Brownish-yellow (10YR 6/6) silty clay loam, yellowish-brown (10YR 5/6) moist; moderate fine and medium subangular blocky structure; hard, firm; many fine pores; few clay flows as above; few black stains as above; noneffervescent; gradual boundary. |
457-469 | 2BCb | II | Light-yellowish-brown (10YR 6/4) loam, dark-yellowish-brown (10YR 4/4) moist; weak fine subangular blocky structure; hard, firm; common fine pores; noneffervescent; gradual boundary. |
469-490 | 2C1 | II | Light-yellowish-brown (10YR 6/4) fine sandy loam, dark-yellowish-brown (10YR 4/4) moist; massive; slightly hard, friable; few fine pores; noneffervescent; gradual boundary. |
490-571 | 2C2 | II | Light-yellowish-brown (10YR 6/4) loamy fine sand, dark-yellowish-brown (10YR 4/4) moist; massive; soft, friable; few fine pores; noneffervescent; clear boundary. |
571-722 | 2C3 | II | Yellowish-brown (10YR 5/4) silt loam, dark-yellowish (10YR 4/4) moist; massive; slightly hard, friable; few fine pores; noneffervescent; clear boundary. |
722-865+ | 3Bkb | III | Yellowish-brown (10YR 5/4) silty clay loam, dark-yellowish-brown (10YR 4/4) moist; moderate medium subangular blocky structure; hard, firm; common films and threads of calcium carbonate; many fine irregular soft masses of calcium carbonate; few fine pores; matrix is noneffervescent. |
Table A.4--Description of Elmore trench and core at locality PR-3
Location: Pawnee County, KS; NW NW sec. 34, R. 19 W., T. 21 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: native grasses
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-10 | Ap | I | Dark-grayish-brown (10YR 4/2) silt loam, very dark gray (10YR 3/1) moist; weak fine granular structure; slightly hard, friable; common fine roots; many fine pores; noneffervescent; clear smooth boundary. |
10-24 | A | I | Grayish-brown (10YR 5/2) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; slightly hard, friable; common fine roots; common fine pores; noneffervescent; gradual smooth boundary. |
24-45 | AC | I | Grayish-brown (10YR 5/2) silt loam, dark-grayish-brown (10YR 4/2) moist; weak very fine granular structure to massive; faint lamination; slightly hard, friable; few fine roots; few fine pores; few earthworm casts; abrupt smooth boundary. |
45-75 | 2Akb | II | Dark-grayish-brown (10YR 4/2) light silty clay loam, very dark grayish-brown (10YR 3/2) moist; weak fine and medium granular structure; slightly hard, friable; few fine roots; few fine pores; few earthworm casts; few films and threads of calcium carbonate; weak effervescence; gradual smooth boundary. |
75-105 | 2ABkb | II | Dark-grayish-brown (10YR 4/2) light silty clay loam, very dark grayish-brown (10YR 3/2) moist; weak fine subangular blocky structure; hard, friable; few fine roots; few fine pores; common films and threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
105-142 | 2Bkb1 | II | Brown (10YR 5/3) silty clay, dark-brown (10YR 3/3) moist; moderate medium subangular blocky structure; hard, firm; few fine roots, few fine pores; many films and threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
142-183 | 2Bkb2 | II | Brown (10YR 5/3) silty clay, brown (10YR 4/3) moist; moderate medium subangular blocky structure; very hard, firm; few very fine roots; few fine pores; common films and threads of calcium carbonate; common fine irregular soft masses of calcium carbonate; strong effervescence; gradual smooth boundary. |
183-216 | 2BCkb | II | Brown (10YR 5/3) loam, brown (10YR 4/3) moist; weak fine sub angular blocky structure; hard, friable; few fine pores; common films and threads of calcium carbonate; few fine irregular soft masses of calcium carbonate; strong effervescence; gradual boundary. |
216-251 | 2C1 | II | Brown (10YR 5/3) to yellowish-brown (10YR 5/4) loam, brown (10YR 4/3) moist; massive with faint bedding; soft, friable; common fine pores; few fine threads of calcium carbonate; strong effervescence; gradual boundary. |
251-296 | 2C2 | II | Laminated brown (10YR 5/3), very dark grayish-brown (10YR 3/2), very dark brown (10YR 2/2), pale-brown (10YR 6/3), grayish-brown (10YR 5/2), light-yellowish-brown (10YR 6/4), brownish-yellow (10YR 6/6), yellowish-brown (10YR 5/4-5/6), and dark-brown (7.5YR 3/4) silty clay, silty clay loam, silt loam, loam, and fine sandy loam; soft, friable; moderate effervescence; clear smooth boundary. |
296-338 | Btb1 | III | Reddish-yellow (7.5YR 6/6) silty clay, brown (7.5YR 5/4) to yellowish-brown moist; common fine and medium distinct dark-grayish-brown (10YR 4/2) and dark-gray (10YR 4/1) mottles; few fine distinct reddish-yellow (10YR 6/6) mottles; moderate fine subangular blocky structure; hard, firm; few discontinuous clay films on ped faces; few fine pores; noneffervescent; clear boundary. |
338-405+ | 3Btb2 | III | Brown (7.5YR 5/4) to yellowish-brown (10YR 5/4) silty clay loam, dark-yellowish-brown (10YR 4/4) moist; moderate fine subangular blocky structure; hard, firm; few discontinuous clay films on ped faces; common fine pores; noneffervescent. |
Table A.5--Description of Rucker section at locality PR-4
Location: Pawnee County, KS; SW NW sec. 31, R. 20 W., T. 21 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: native grasses
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-27 | Ap | I | Dark-grayish-brown (10YR 4/2) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; slightly hard, friable; many fine roots; common fine pores; weak effervescence; clear smooth boundary. |
27-38 | A | I | Grayish-brown (10YR 5/2) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; slightly hard, friable; many fine roots; common fine pores; few fine flecks of calcium carbonate; strong effervescence; clear smooth boundary. |
38-48 | ACk | I | Grayish-brown (10YR 5/2) to brown (10YR 5/3) silt loam, dark-grayish-brown (10YR 4/2) moist; weak very fine granular structure; slightly hard, friable; many fine roots; common fine pores; few fine flecks of calcium carbonate; strong effervescence; gradual smooth boundary. |
48-105 | C | I | Laminated light-grayish-brown (10YR 6/2), grayish-brown (10YR 5/2), dark-grayish-brown (10YR 4/2), and very dark grayish-brown (10YR 3/2) silty clay loam, silt loam, and very fine sandy loam; individual strata are <2 mm thick; slightly hard, friable; common fine roots; few fine pores; strong effervescence; abrupt smooth boundary. |
105-145 | 2Ab | II | Dark-gray (10YR 4/1) silt loam, very dark gray (10YR 3/1) moist; weak fine granular structure; slightly hard, friable; common fine roots; few fine pores; few earthworm casts; noneffervescent; gradual smooth boundary. |
145-175 | 2ACkb | II | Brown (10YR 5/3) silt loam, brown (10YR 4/3) moist; common fine faint grayish-brown (10YR 5/2) mottles; weak fine granular structure; slightly hard, friable; few fine roots, few fine pores; few threads of calcium carbonate; violent effervescence; gradual smooth boundary. |
175-273 | 2C1 | II | Pale-brown (10YR 6/3) silt loam, brown (10YR 5/3-4/3) moist; weak fine granular structure; hard, friable; few fine roots; common fine pores; violent effervescence; gradual smooth boundary. |
273-441 | 2C2 | II | Very pale brown (10YR 7/3) and pale-brown (10YR 6/3) silt loam and very fine sandy loam; stratified; soft, friable; individual strata are <1 to 5 cm thick; few fine roots, few fine pores; violent effervescence; gradual smooth boundary. |
441-482 | 3Bkb | III | Yellowish-brown (10YR 5/4) silty clay loam, dark-yellowish-brown (10YR 4/4) moist; common fine and medium distinct brown (10YR 5/3) and grayish-brown (10YR 5/2) mottles; moderate fine and medium subangular blocky structure; hard, friable; many films and threads of calcium carbonate; few fine hard calcium carbonate concretions; strong effervescence; diffuse boundary. |
482-528 | 3Btkb | III | Brown (10YR 5/2) heavy silty clay loam, dark-brown (10YR 3/3) moist; moderate medium subangular blocky structure; hard, firm; few fine pores; common films and threads of calcium carbonate; few fine hard calcium carbonate concretions; common discontinuous clay films on ped faces; weak effervescence; gradual smooth boundary. |
528-564 | 3BCkb | III | Brown (10YR 5/3) silty clay loam, brown (10YR 4/3) moist; moderate fine subangular blocky structure; slightly hard, friable; few fine pores; few films and threads of calcium carbonate; weak effervescence; gradual smooth boundary. |
564-604 | 4Btkb | IV | Yellowish-brown (10YR 5/4) silty clay loam, dark-yellowish-brown (10YR 4/4) moist; moderate fine subangular blocky structure; hard, firm; few dark-brown (10YR 3/3) clay flows on vertical faces; common films and threads of calcium carbonate; few fine pores; strong effervescence; gradual smooth boundary. |
604-720+ | 4BCkb | IV | Yellowish-brown (10YR 5/4) light silty clay loam, dark-yellowish-brown (10YR 4/4) moist; massive; soft, friable; common fine pores; common films and threads of calcium carbonate; strong effervescence. |
Table A.6--Description of Burdett trench and core at locality PR-5
Location: Hodgeman County, KS; NW NW sec. 7, R. 21 W., T. 21 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: native grasses
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-12 | Ap | I | Brown (10YR 4/3) silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; friable; common fine roots; weak effervescence; clear smooth boundary. |
12-63 | AC | I | Brown (10YR 5/3) silt loam, brown (10YR 4/3) moist; weak very fine granular structure; friable; common fine roots; faint thin bedding in lower 20 cm; strong effervescence; abrupt smooth boundary. |
63-85 | 2Ab | I | Brown (10YR 4/3) silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; friable; common fine roots; strong effervescence; gradual smooth boundary. |
85-276 | 2C | I | Stratified dark-grayish-brown (10YR 4/2) silty clay loam, grayish-brown (10YR 5/2) silt loam, brown (10YR 5/3) loam, and pale-brown (10YR 6/3) fine sandy loam; individual beds are 2-15 mm thick; massive; friable; few fine roots; strong effervescence; abrupt boundary. |
276-320 | 3Ab | II | Very dark grayish-brown (10YR 3/2) silt loam, very dark brown (10YR 2/2) moist; moderate fine granular structure; hard, friable; common fine and medium pores; common very fine white noncalcareous flecks; few earthworm casts; noneffervescent; gradual smooth boundary. |
320-345 | 3Bwb | II | Yellowish-brown (10YR 5/4) heavy silt loam, brown (10YR 4/3) moist; common fine faint brown (10YR 5/3) mottles; moderate fine subangular blocky parting to fine granular structure; hard, friable; common fine and few medium pores; few earthworm casts; moderate effervescence; gradual smooth boundary. |
345-350 | 3BCb | II | Pale-brown (10YR 6/3) to brown (10YR 5/3) silt loam, brown (10YR 5/3) moist; moderate fine granular structure; hard, friable; common fine and few medium pores; few earthworm casts; strong effervescence; gradual smooth boundary. |
350-397 | 3C1 | II | Pale-brown (10YR 6/3) to brown (10YR 5/3) loam, brown (10YR 5/3) moist; massive; soft, friable; many fine and few medium pores; violent effervescence; clear boundary. |
397-429 | 3C2 | II | Pale-yellow (2.5Y 7/4) to light-yellowish-brown (2.5Y 6/4) loam, brown (10YR 5/3) to yellowish-brown (10YR 5/4) moist; massive; soft, friable; many fine pores; abrupt boundary. |
429-523 | 4Bkb1 | III | Brown (10YR 5/3) silty clay loam, brown (10YR 4/3) moist; weak fine subangular blocky structure; hard, friable; common pale-brown (10YR 6/3) silt coatings on ped faces; many films and threads of calcium carbonate; many fine pores; strong effervescence; gradual boundary. |
523-558 | 4Bkb2 | III | Brown (10YR 5/3) to yellowish-brown (10YR 5/4) silty clay loam, brown (10YR 4/3) moist; moderate fine subangular blocky structure; hard, friable; common fine and medium pores; many films and threads of calcium carbonate; strong effervescence; gradual boundary. |
558-575 | 4BCkb | III | Pale-brown (10YR 6/3) silt loam, brown (10YR 5/3) moist; common medium distinct brown (10YR 5/3) mottles; moderate fine subangular blocky structure; hard, friable; common fine pores; common films and threads of calcium carbonate; violent effervescence; gradual boundary. |
575-616 | 4C1 | III | Pale-brown (10YR 6/3) to light-yellowish-brown (2.5Y 6/4) silt loam, yellowish-brown (10YR 5/4) moist; massive; soft, friable; few fine pores; violent effervescence; gradual boundary. |
616-720 | 4C2 | III | Light-yellowish-brown (2.5Y 6/4-10YR 6/4) silt loam, yellowish-brown (10YR 5/4) moist; massive; soft, friable; few fine pores; violent effervescence; clear boundary. |
720-775 | 4Ck | III | Very pale brown (10YR 7/4) to pale-yellow (2.5Y 7/4) fine sandy loam, yellowish-brown (10YR 7/4) moist; laminated; soft, friable; few fine pores; few fine threads of calcium carbonate; violent effervescence. |
Table A.7--Description of T-0 section at locality PR-5
Location: Hodgeman County, KS; NW NW sec. 7, R. 21 W., T. 21 S.
Landscape position: T-0 floodplain
Slope: <1 %
Vegetation: riparian forest
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-25 | A | I | Grayish-brown (10YR 5/2) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; slightly hard, friable; many fine roots; common worm casts; moderate effervescence; gradual smooth boundary. |
25-55 | AC | I | Light-brownish-gray (10YR 6/2) silt loam, dark-grayish-brown (10YR 4/2) moist; weak fine granular structure; slightly hard, friable; common fine roots; few worm casts; strong effervescence; gradual smooth boundary. |
55-105 | C | I | Light-brownish-gray (10YR 6/2) silt loam, dark-grayish-brown (10YR 4/2) moist; massive; soft, friable; common thin beds of loam, silt loam, and silty clay loam in lower 30 cm of horizon; common fine roots; strong effervescence; abrupt smooth boundary. |
105-140 | 2Ab | II | Dark-grayish-brown (10YR 4/2) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; slightly hard, friable; common fine roots; moderate effervescence; gradual smooth boundary. |
140-165 | 2ACb | II | Grayish-brown (10YR 5/2) silt loam, dark-grayish-brown (10YR 4/2) moist; weak very fine granular structure; slightly hard, friable; few fine roots; strong effervescence; gradual smooth boundary. |
165-260 | 2C | II | Laminated light-grayish-brown (10YR 6/2) loam, grayish-brown (10YR 5/2) silt loam, brown (10YR 5/3) silty clay loam, and pale-brown (10YR 6/3) silty clay; massive; soft, friable; few fine roots; strong effervescence. |
Table A.8--Description of Foos section at locality PR-6
Location: Ness County, KS; NE NW sec. 28, R. 22 W., T. 20 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: native grasses
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-20 | A | I | Grayish-brown (10YR 5/2) loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; very friable; many fine roots; violent effervescence; gradual smooth boundary. |
20-60 | AC | I | Light-brownish-gray (10YR 6/2) loam, grayish-brown (10YR 4/2) moist; weak very fine granular structure; very friable; common fine roots; common fine pores; many earthworm casts; violent effervescence; abrupt smooth boundary. |
60-96 | 2Ab | II | Grayish-brown (10YR 5/2) silty clay, very dark grayish-brown (10YR 3/2) moist; moderate fine granular structure; hard, friable; common fine roots; violent effervescence; gradual smooth boundary. |
96-125 | 2ACb | II | Light-brownish-gray (10YR 6/2) silt loam, grayish-brown (10YR 4/2) moist; weak very fine granular structure; hard, friable; few fine roots; few fine pores; violent effervescence; abrupt smooth boundary. |
125-155 | 3Ab | III | Dark-grayish-brown (10YR 4/2) silty clay loam, very dark grayish-brown (10YR 3/2) moist; moderate medium and coarse granular structure; slightly hard, friable; few fine roots; weak effervescence; gradual smooth boundary. |
155-170 | 3ABkb | III | Grayish-brown (10YR 5/2) silty clay loam, dark-grayish-brown (10YR 4/2) moist; moderate fine subangular blocky structure; hard, firm; few fine roots; few fine pores; common films and threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
170-200 | 3Bkb1 | III | Pale-brown (10YR 6/3) to brown (10YR 5/3) silty clay loam, brown (10YR 4/3) moist; moderate medium subangular blocky structure; very hard, firm; few fine pores; many films and threads of calcium carbonate; few fine irregular soft masses of carbonate; strong effervescence; gradual smooth boundary. |
200-240 | 3Bkb2 | III | Pale-brown (10YR 6/3) silty clay loam, brown (10YR 4/3) moist; moderate medium subangular blocky structure; very hard, firm; common fine pores; many films and threads of calcium carbonate; few fine irregular soft masses of calcium carbonate; strong effervescence; gradual smooth boundary. |
240-282 | 3BCkb | III | Brown (10YR 5/3) silt loam, brown (10YR 4/3) moist; moderate fine subangular blocky structure; very hard, firm; common fine pores; common films and threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
282-351 | 3Ck | III | Brown (10YR 5/3) and pale-brown (10YR 6/3) silt loam, brown (10YR 5/3) moist; stratified; common thin (<10 mm thick) strata of fine sandy loam; hard, friable; common fine pores; few threads of calcium carbonate; moderate effervescence; abrupt boundary. |
351-405 | 4Akb | IV | Grayish-brown (10YR 5/2) silty clay loam, dark-grayish-brown (10YR 4/2) moist; moderate medium granular structure; friable; few fine pores; few fine threads of calcium carbonate; matrix is noneffervescent; gradual smooth boundary. |
405-420 | 4ABkb | IV | Grayish-brown (10YR 5/2) silty clay loam, dark-grayish-brown (10YR 4/2) moist; moderate fine subangular blocky structure; firm; common fine pores; few fine threads of calcium carbonate; matrix is noneffervescent; gradual smooth boundary. |
420-470 | 4Btkb | IV | Brown (10YR 5/3) silty clay, brown (10YR 4/3) moist; moderate fine subangular blocky structure; firm; common fine pores; few films and threads of calcium carbonate; few fine hard carbonate concretions; few discontinuous clay films on ped faces; moderate effervescence. |
Table A.9--Description of McCreight section at locality PR-7
Location: Pawnee County, KS; SW SW sec. 35, R. 24 W., T. 20 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: crops
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-27 | Ap | I | Brown (10YR 5/3) silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; slightly hard, friable; common fine roots; weak effervescence; clear smooth boundary. |
27-55 | A | I | Dark-grayish-brown (10YR 4/2) to dark-gray (10YR 4/1) silt loam, very dark grayish-brown (10YR 3/2) moist; moderate medium granular structure; slightly hard, friable; common fine roots; common earthworm casts; common fine pores; strong effervescence; gradual smooth boundary. |
55-75 | ABk | I | Brown (10YR 5/3) silty clay loam, dark-brown (10YR 3/3) moist; moderate medium and fine subangular blocky structure; hard, friable; few fine roots; common fine pores; few films and threads of calcium carbonate; strong effervescence; gradual boundary. |
75-124 | Bk | I | Brown (10YR 5/3) heavy silty clay loam, brown (10YR 4/3) moist; moderate medium subangular blocky structure; hard, friable; common films, threads, and fine soft masses of calcium carbonate; few fine hard carbonate concretions; few fine roots; common fine pores; strong effervescence; gradual smooth boundary. |
124-153 | BCk | I | Brown (10YR 5/3) light silty clay loam, brown (10YR 4/3) moist; moderate fine subangular blocky structure; hard, friable; common films and threads and few soft masses of calcium carbonate; few fine, hard carbonate concretions; few fine roots; common fine pores; strong effervescence; gradual smooth boundary. |
153-190 | C | I | Pale-brown (10YR 6/3) to brown (10YR 5/3) silt loam, brown (10YR 4/3) moist; massive; hard, friable; common fine pores; few fine threads of calcium carbonate; strong effervescence; abrupt smooth boundary. |
190-225 | 2Akb | II | Brown (10YR 4/3) silt loam, dark-brown (10YR 3/3) moist; moderate medium granular structure; hard, friable; common fine pores; few fine threads of calcium carbonate; weak effervescence; gradual smooth boundary. |
225-250 | 2ACkb | II | Brown (10YR 5/3) silt loam, dark-brown (10YR 3/3) moist; moderate fine granular structure; hard, friable; common fine pores; few fine threads of calcium carbonate; moderate effervescence; gradual smooth boundary. |
250-330 | 2C | II | Brown (10YR 5/3) silty clay and pale brown (10YR 6/3) silt loam and very fine sandy loam; stratified; hard, friable; strong effervescence; abrupt smooth boundary. |
330-377 | 3Akb | IIIa | Brown (10YR 4/3) silt loam, dark-brown (10YR 3/3) moist; moderate fine and medium granular structure; hard, friable; common fine pores; few fine threads of calcium carbonate; moderate effervescence; gradual smooth boundary. |
377-480 | 3ACkb | IIIa | Brown (10YR 5/3) to pale-brown (10YR 6/3) silt loam, brown (10YR 4/3) moist; weak fine granular structure; hard, friable; many fine pores; many films and threads of calcium carbonate; few fine soft carbonate masses; strong effervescence; gradual smooth boundary. |
480-498 | 3Ck | IIIa | Pale-brown (10YR 6/3) silt loam, brown (10YR 5/3) to yellowish-brown (10YR 5/4) moist; massive; hard, friable; many fine pores; secondary carbonates as above; strong effervescence; abrupt smooth boundary. |
498-553 | 4Akb | IV | Grayish-brown (10YR 5/2) silt loam, dark-grayish-brown (10YR 4/2) moist; massive to weak fine granular structure; hard, friable; many fine pores; many films and threads of calcium carbonate; few fine soft carbonate masses; violent effervescence; gradual smooth boundary. |
4553-630 | 4ACkb | IV | Light-grayish-brown (10YR 6/2) silt loam, grayish-brown (10YR 5/2) to dark-grayish-brown (10YR 4/2) moist; massive to weak fine granular structure; hard, friable; many fine pores; many films and threads of calcium carbonate; few fine soft carbonate masses; strong effervescence; abrupt smooth boundary. |
630-675 | 5Akb | V | Grayish-brown (10YR 5/2) to brown (10YR 5/3) heavy silty clay loam, dark-grayish-brown (10YR 4/2) moist; moderate fine and medium subangular blocky structure; very hard, firm; common fine pores; few fine threads of calcium carbonate; matrix is noneffervescent; gradual smooth boundary. |
675-705 | 5Bkb1 | V | Brown (10YR 5/3) silty clay, brown (10YR 4/3) moist; moderate medium subangular blocky structure; very hard, firm; common fine pores; many films and threads of calcium carbonate; few fine hard carbonate masses; strong effervescence; gradual smooth boundary. |
705-760 | 5Bkb2 | V | Brown (10YR 5/3) silty clay, brown (10YR4/3) moist; moderate fine subangular blocky structure; very hard, firm; common fine pores; secondary carbonates as above; strong effervescence; gradual smooth boundary. |
760-783 | 5BCkb | V | Pale-brown (10YR 6/3) silty clay loam, brown (10YR 5/3-4/3) moist; moderate fine subangular blocky structure parting to granular structure; hard, friable; common fine pores; common films and threads of calcium carbonate; few fine soft carbonate masses; strong effervescence; abrupt smooth boundary. |
783-813 | 6Akb | VI | Brown (10YR 4/3) heavy silty clay loam, dark-brown (10YR 3/3) moist; moderate fine subangular blocky structure; hard, firm; common fine pores; many films and threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
813-874 | 6Bkb | VI | Brown (10YR 5/3) silty clay, brown (10YR 4/3) moist; moderate medium subangular blocky structure; hard, firm; common fine pores; many films and threads of calcium carbonate; few fine soft calcium carbonate masses; strong effervescence; gradual smooth boundary. |
874-910 | 6BCkb | VI | Light-brownish-gray (10YR 6/2) silty clay loam, brown (10YR 4/3) moist; weak fine subangular blocky structure; hard, firm; common fine pores; common films and threads of calcium carbonate; few fine soft calcium carbonate masses; strong effervescence, gradual smooth boundary. |
910-990+ | 6Ck | VI | Pale-brown (10YR 6/3) to brown (10YR 5/3) silty clay loam, brown (10YR 4/3) moist; massive; faint lamination; hard, firm; common fine pores; common films and threads of calcium carbonate; strong effervescence. |
Table A.10--Description of Patchen section at locality PR-8
Location: Hodgeman County, KS; SW NW sec. 16, R. 25 W., T. 21 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: native grasses
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-15 | Ap | I | Brown (10YR 4/3) silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; friable; common fine roots; weak effervescence; clear smooth boundary. |
15-46 | AC | I | Brown (10YR 5/3) silt loam, dark-brown (10YR 3/3) moist; weak very fine granular structure; friable; common fine roots; strong effervescence; abrupt smooth boundary. |
46-64 | 2Ab | I | Brown (10YR 4/3) silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; friable; common fine roots; strong effervescence; gradual smooth boundary. |
64-111 | 2ACb | I | Brown (10YR 4/3) silt loam, dark-brown (10YR 3/3) moist; weak very fine granular structure; friable; common fine roots; common earthworm casts; strong effervescence; abrupt smooth boundary. |
111-136 | 3Ab | I | Brown (10YR 4/3) silt loam, brown (10YR 3/3) moist; weak fine granular structure; friable; common fine roots; strong effervescence; gradual smooth boundary. |
136-175 | 3ACb | I | Brown (10YR 5/3) silt loam, brown (10YR 3/3) moist; weak very fine granular structure; friable; common fine roots; strong effervescence; few fine pores; abrupt smooth boundary. |
175-205 | 4Ab | I | Brown (10YR 4/3) silt loam, brown (10YR 3/3) moist; weak fine granular structure; friable; common fine roots; strong effervescence; gradual smooth boundary. |
205-251 | 4ACb | I | Brown (10YR 5/3) silt loam, brown (10YR 4/3) moist; weak very fine granular structure; faint lamination; friable; few fine roots; common fine pores; strong effervescence; abrupt smooth boundary. |
251-280 | 5Ab1 | II | Dark-gray (10YR 4/1) silt loam, black (10YR 2/1) moist; moderate fine granular structure; slightly hard, friable; few fine roots; common gastropods; weak effervescence; gradual smooth boundary. |
280-297 | 5Ab2 | I | Grayish-brown (10YR 5/2) silt loam, very dark grayish-brown (10YR 3/2) moist; moderate fine granular structure; slightly hard, friable; few fine roots; few gastropods; weak effervescence; gradual smooth boundary. |
297-330 | 5Bwb | II | Brown (10YR 5/3) to yellowish-brown (10YR 5/4) silt loam, brown (10YR 4/3) moist; weak fine subangular blocky structure; slightly hard, friable; few fine roots; common very fine pores; moderate effervescence; gradual smooth boundary. |
330-345 | 5BCkb | II | Yellowish-brown (10YR 5/4) silt loam, dark-yellowish-brown (10YR 4/4) moist; weak fine granular structure; slightly hard, friable; few fine roots; common fine pores; few fine threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
345-470 | 5Ck | II | Pale-brown (10YR 6/3) silt loam, brown (10YR 5/4) moist; massive; soft, friable; common fine pores; very few fine threads of calcium carbonate; violent effervescence; gradual smooth boundary. |
470-520 | 5C1 | II | Pale-brown (10YR 6/3) to very pale brown (10YR 7/3) loam, brown (10YR 5/3) moist; massive; soft, friable; few fine pores; violent effervescence; clear smooth boundary. |
520-650+ | 5C2 | II | Pale-brown (10YR 6/3) fine, medium, and coarse sand, brown (10YR 5/4) moist; stratified; some crossbedding; single grain, loose; ≈80% siliceous grains by volume; moderate effervescence. |
Table A.11--Description of section at site 14HO5 at locality PR-9
Location: Hodgeman County, KS; NE NE sec. 3, R. 26 W., T. 22 S.
Elevation: 725.4 m (2,380 ft)
Landscape position: T-0 floodplain
Slope: <1 %
Vegetation: riparian forest
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-30 | A | I | Grayish-brown (10YR 5/2) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; slightly hard, friable; many fine roots; common worm casts; moderate effervescence; gradual smooth boundary. |
30-75 | AC | I | Light-brownish-gray (10YR 6/2) silt loam, dark-grayish-brown (10YR 4/2) moist; weak fine granular structure; slightly hard, friable; common fine roots; few worm casts; strong effervescence; gradual smooth boundary. |
75-90 | C | I | Light-brownish-gray (10YR 6/2) silt loam, dark-grayish-brown (10YR 4/2) moist; massive; soft, friable; common fine roots; strong effervescence; abrupt smooth boundary. |
90-115 | 2Ab | II | Dark-grayish-brown (10YR 4/2) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; slightly hard, friable; common fine roots; common bones and bone fragments, chert flakes, and pottery shards; moderate effervescence; gradual smooth boundary. |
115-160 | 2ACb | II | Grayish-brown (10YR 5/2) silt loam, dark-grayish-brown (10YR 4/2) moist; weak very fine granular structure; slightly hard, friable; few fine roots; strong effervescence; gradual smooth boundary. |
160-250 | 2C | II | Stratified light-grayish-brown (10YR 6/2) loam, grayish-brown (10YR 5/2) fine sandy loam, and pale-brown (10YR 6/3) silty clay; massive; soft, friable; few fine roots; strong effervescence. |
Table A.12--Description of Fearker section at locality PR-10
Location: Finney County, KS; NE SE sec. 12, R. 28 W., T. 22 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: crops
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-20 | Ap | I | Brown (10YR 5/3) loam, dark-brown (10YR 3/3) moist; weak fine granular structure; slightly hard, friable; common fine roots; strong effervescence; clear smooth boundary. |
20-32 | A | I | Brown (10YR 5/3) loam, dark-brown (10YR 3/3) moist; weak fine granular structure; slightly hard, friable; common fine roots; common fine pores; many earthworm casts; violent effervescence; gradual smooth boundary. |
32-45 | AC | I | Brown (10YR 5/3) to pale-brown (10YR 6/3) loam, brown (10YR 5/3) moist; moderate fine granular structure; hard, friable; common fine roots; common fine pores; common earthworm casts; violent effervescence; gradual boundary. |
45-80 | C | I | Pale-brown (10YR 6/3) fine sandy loam, brown (10YR 5/3) moist; faint horizontal bedding with individual beds <2 mm thick; hard, friable; few fine roots; common fine pores; few earthworm casts; violent effervescence; clear smooth boundary. |
80-142 | Ck | I | Pale-brown (10YR 6/3) very fine sandy loam and silt loam, brown (10YR 5/3) moist; stratified, with individual beds <2 mm thick; slightly hard, friable; few fine roots; common fine pores; few threads of calcium carbonate; violent effervescence; abrupt smooth boundary. |
142-195 | 2Akb | II | Gray (10YR 5/1) to grayish-brown (10YR 5/2) silt loam, very dark gray (10YR 3/1) moist; moderate fine granular structure; slightly hard, friable; few fine and medium roots; common fine pores; few earthworm casts; common threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
195-210 | 2ABkb | II | Grayish-brown (10YR 5/2) silty clay loam, very dark grayish-brown (10YR 3/2) moist; weak fine subangular blocky structure; few faint medium-brown (10YR 5/3) mottles; gritty; few fine roots; common fine pores; common threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
210-250 | 2Bkb | II | Brown (10YR 5/3) silty clay loam, brown (10YR 4/3) moist; gritty; weak fine and medium subangular blocky structure; hard, firm; few dark-grayish-brown (10YR 4/2) coatings on ped faces; common fine pores; common threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
250-295 | 2BCkb | II | Brown (10YR 5/3) to pale-brown (10YR 6/3) loam, brown (10YR 4/3) moist; weak fine and medium subangular blocky structure; hard, firm; common fine pores; common films and threads of calcium carbonate; violent effervescence; gradual smooth boundary. |
295-340 | 2Ck | II | Pale-brown (10YR 6/3) loam, brown (10YR 5/3) moist; massive; hard, friable; common fine pores; many films and threads of calcium carbonate; violent effervescence. |
Table A.13--Description of section at site 14HO306 (locality BC-1) in Buckner Creek valley
Location: Hodgeman County, KS; SW NE sec. 16, R. 25 W., T. 23 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: native grasses
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-18 | Ap | I | Brown (10YR 4/3) silt loam, very dark grayish-brown (10YR 3/2) moist; weak medium granular structure; slightly hard, friable; common fine roots; common fine pores; noneffervescent; gradual smooth boundary. |
18-38 | A | I | Grayish-brown (10YR 5/2) silt loam, very dark grayish-brown (10YR 3/2) moist; moderate medium granular structure; slightly hard, friable; common fine roots; common fine pores; few earthworm casts; moderate effervescence; gradual smooth boundary. |
38-46 | AB | I | Grayish-brown (10YR 5/2) silt loam, brown (10YR 4/3) moist; moderate medium granular structure; slightly hard, friable when moist; few pale-brown (10YR 6/3) silt coatings on ped faces; few fine roots; common fine pores; moderate effervescence; clear smooth boundary. |
46-61 | Bk1 (2Ab)a | I | Dark-brown (10YR 3/3) silt loam, dark-grayish-brown (10YR 3/2) moist; weak medium columnar parting to weak fine subangular blocky structure; hard, friable; common pale-brown (10YR 6/2) silt coatings on ped faces; few fine roots; common fine pores; few threads and films of calcium carbonate; strong effervescence. |
61-86 | Bk2 | I | Grayish-brown (10YR 5/2) silt loam, brown (10YR 4/3) moist; moderate medium columnar parting to moderate medium granular structure; hard, friable; common pale-brown (10YR 6/3) silt coatings on ped faces; few fine roots; common fine pores; common films and threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
86-119 | BCk | I | Grayish-brown (10YR 5/2) silt loam, brown (10YR 4/3) moist; weak medium and fine granular structure; very hard when dry, friable when moist; common fine pores; common films and threads of calcium carbonate; strong effervescence; abrupt smooth boundary. |
119-147 | 3Akb | I | Grayish-brown to dark-grayish-brown (10YR 5/2 -4/2) silt loam, dark-grayish-brown (10YR 4/2) moist; weak medium granular structure; hard, friable; common fine pores; common films and threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
147-176 | 3ACkb | I | Grayish-brown (10YR 5/2) silty clay loam, dark-grayish-brown (10YR 4/2) moist; weak fine and medium granular structure; hard, friable; common fine pores; common films and threads calcium carbonate; strong effervescence; abrupt smooth boundary. |
176-210 | 4Ab | II | Dark-gray (10YR 4/1) loam, very dark gray (10YR 3/1) moist; moderate medium granular structure; hard when dry, friable when moist; common fine pores; few flecks of charcoal; few chert flakes and burned rocks; few gastropods; noneffervescent; gradual smooth boundary. |
210-241 | 4Akb | II | Dark-grayish-brown (10YR 4/2) silt loam, very dark grayish-brown (10YR 3/2) moist; moderate medium granular structure; hard, friable; common fine pores; few films and threads of calcium carbonate; few flecks of charcoal; few chert flakes and burned rocks; few gastropods; strong effervescence; gradual smooth boundary. |
241-271 | 4ABkb | II | Brown (10YR 5/3) silt loam, dark-grayish-brown (10YR 4/2) moist; weak fine sub angular-blocky structure; hard, friable; common fine pores; common grayish-brown (10YR 5/2) coatings on ped faces; few films and threads of calcium carbonate; few gastropods; strong effervescence; gradual smooth boundary. |
271-317 | 4Bkb | II | Pale-brown (10YR 6/3) silt loam, brown (10YR 5/3) moist; weak fine subangular-blocky structure; hard, friable; many fine pores; common films and threads of calcium carbonate; few fine hard concretions of calcium carbonate; violent effervescence; abrupt smooth boundary. |
317-345 | 5Akb | II | Grayish-brown (10YR 5/2) silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; hard, friable; common fine pores; common films and threads of calcium carbonate; few fine soft calcium carbonate concretions; strong effervescence; gradual smooth boundary. |
345-394 | 5Ck | II | Pale-brown (10YR 6/3) silt loam, brown (10YR 5/3) moist; massive with faint lamination; hard, friable; common fine pores; many films and threads of calcium carbonate; strong effervescence; abrupt smooth boundary. |
394-432 | 6Akb1 | III | Dark-grayish-brown (10YR 4/2) silt loam, very dark grayish-brown (10YR 3/2) moist; moderate medium granular structure; hard, friable; many fine pores; common films and threads of calcium carbonate; many flecks of charcoal; common bone fragments and burned rocks; few chert flakes; strong effervescence; gradual smooth boundary. |
432-471 | 6Akb2 | III | Grayish-brown (10YR 5/2) silt loam, dark-grayish-brown (10YR 4/2) moist; moderate medium granular structure; hard, friable; common fine pores; common films and threads of calcium carbonate; few gastropods; common flecks of charcoal, bone fragments, and burned rocks in lower 10 cm of horizon; strong effervescence; gradual smooth boundary. |
471-523 | 6Bkb | III | Brown (10YR 5/3) silt loam, dark-brown (10YR 4/3) moist; weak fine granular structure; hard, friable; common fine pores; common films and threads of calcium carbonate; few fine hard calcium carbonate concretions; violent effervescence; gradual smooth boundary. |
523-658 | 6BCkb | III | Pale-brown (10YR 6/3) silt loam, brown (10YR 4/3) moist; massive with faint bedding; hard, friable; common fine pores; common films and threads of calcium carbonate; few fine hard concretions of calcium carbonate; violent effervescence; gradual smooth boundary. |
658-712 | 6Ck | III | Brown (10YR 5/3) gravelly fine sand grading upward to fine sandy loam, brown (10YR 4/3) moist; massive with faint bedding in the upper 25 cm; hard, friable; few fine pores; few films and threads of calcium carbonate; strong effervescence; irregular boundary. |
712+ | 7R | Limestone. | |
a. Welded soil. |
Table A.14--Description of section at site 14HO315 at locality BC-1
Location: Hodgeman County, KS; NW NW sec. 20, R. 25 W., T. 23 S.
Landscape position: T-0 floodplain
Slope: <1 %
Vegetation: native grasses
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-30 | A | I | Dark-grayish-brown (10YR 4/2) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; slightly hard, friable; many fine roots; few worm casts; weak effervescence below 10 cm; gradual smooth boundary. |
30-42 | AC | I | Grayish-brown (10YR 5/2) silt loam, dark-grayish-brown (10YR 4/2) moist; weak fine granular structure; slightly hard, friable; common fine roots; faint bedding; strong effervescence; clear smooth boundary. |
42-59 | Ck | I | Light-brownish-gray (10YR 6/2), pale-brown (10YR 6/3), and grayish-brown (10YR 5/2) silt loam; stratified; few thin lenses (<2 mm thick) of very pale brown (10YR 7/3) fine sandy loam; slightly hard, friable; few fine roots; few fine pores; few threads of calcium carbonate; strong effervescence; abrupt smooth boundary. |
59-105 | 2Akb | II | Grayish-brown (10YR 5/2) silt loam, dark-grayish-brown (10YR 4/2) moist; moderate fine and medium granular structure; hard, friable; few fine roots; common fine pores; few films and threads of calcium carbonate; strong effervescence; abrupt smooth boundary. |
105-230 | 2ACkb | II | Grayish-brown (10YR 5/2) loam, dark-grayish-brown (10YR 4/2) moist; moderate fine granular structure; hard, friable; few fine roots; few fine threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
230-361 | 2C | II | Grayish-brown (10YR 5/2) gravelly loam, dark-grayish-brown (10YR 4/2) moist; stratified; loamy matrix is slightly hard and friable; pebbles compose 80% of sediment in horizon; strong effervescence; irregular boundary. |
361+ | 3R | Limestone. |
Table A.15--Description of section 1 at site 14NS308 at locality HC-1
Location: Ness County, KS; NE SE sec. 29, R. 26 W., T. 20 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: wheat
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-15 | Ap | I | Grayish-brown (10YR 5/2) silt loam, brown (10YR 4/3) moist; weak medium granular structure; slightly hard, friable; common fine roots; moderate effervescence; gradual smooth boundary. |
15-48 | A | I | Grayish-brown (10YR 5/2) silt loam, very dark grayish-brown (10YR 3/2) moist; moderate medium granular structure; slightly hard, friable; common fine roots; common fine pores; common earthworm casts; moderate effervescence; gradual smooth boundary. |
48-55 | AB | I | Grayish-brown (10YR 5/2) silt loam, brown (10YR 4/3) moist; moderate medium granular structure; slightly hard, friable; few pale-brown (10YR 6/3) silt coatings on ped faces; few fine roots; common fine pores; moderate effervescence; clear smooth boundary. |
55-67 | Bk1 (2Ab)a | I | Dark-grayish-brown (10YR 4/2) light silty clay loam, very dark grayish-brown (10YR 3/2) moist; moderate medium columnar parting to moderate subangular blocky structure; hard, friable; common pale-brown (10YR 6/3) silt coatings on ped of calcium carbonate; strong effervescence; gradual smooth boundary. |
67-85 | Bk2 | I | Brown (10YR 4/3) light silty clay loam, dark-brown (10YR 3/3) moist; moderate medium columnar parting to moderate medium subangular blocky structure; hard, friable; common pale-brown (10YR 6/3) silt coatings on ped faces; few fine roots; common fine pores; few threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
85-107 | BC | I | Pale-brown (10YR 6/3) silt loam, brown (10YR 4/3) moist; moderate medium columnar parting to moderate medium subangular blocky structure; hard, friable; common fine pores; strong effervescence; abrupt smooth boundary. |
107-151 | 3Ab | II | Dark-grayish-brown (10YR 4/2) silt loam, very dark grayish-brown (10YR 3/2) moist; moderate medium granular structure; hard, friable; few fine roots; common fine pores; strong effervescence; gradual smooth boundary. |
151-168 | 3ABb | II | Pale-brown (10YR 6/3) silt loam, grayish-brown (10YR 5/2) moist; moderate medium granular structure; hard, friable; common fine pores; strong effervescence; gradual smooth boundary. |
168-200 | 3Bkb | II | Pale-brown (10YR 6/3) silt loam, brown (10YR 5/3) moist; massive; very hard, friable; common fine pores; common films and threads of calcium carbonate; violent effervescence; gradual smooth boundary. |
200-415 | 3Ck | II | Very pale brown (10YR 7/3) silt loam, brown (10YR 5/3) moist; massive; very hard, friable; common fine pores; common films and threads of calcium carbonate; violent effervescence; abrupt smooth boundary. |
415-455 | 4Akb1 | IV | Grayish-brown (10YR 5/2) silt loam, very dark grayish-brown (10YR 3/2) moist; moderate medium granular structure; hard, friable; common fine pores; common fine threads of calcium carbonate; common flecks of charcoal; common gastropods; prehistoric cultural materials and bones concentrated in upper 15 cm; strong effervescence; gradual smooth boundary. |
455-510 | 4Akb2 | IV | Brown (10YR 5/3) silt loam, brown (10YR 4/3) moist; moderate medium granular structure; hard, friable; common fine pores; common films and fine threads of calcium carbonate; common flecks of charcoal; common gastropods; prehistoric cultural materials concentrated in lower 30 cm of horizon; strong effervescence; gradual smooth boundary. |
510-532 | 4Bk | IV | Pale-brown (10YR 6/3) silt loam, brown (10YR 4/3) moist; moderate fine subangular blocky structure; hard, friable; common fine pores; common threads of calcium carbonate; many hard, tubular and irregularly shaped calcium carbonate concretions, 0.25-0.50 cm in diameter; common gastropods and pelecypods; violent effervescence; gradual smooth boundary. |
532-545 | 4BCk | IV | Very pale brown (10YR 7/3) silt loam, brown (10YR 4/3) moist; weak fine subangular blocky structure; very hard, friable; common fine pores; common threads of calcium carbonate; many hard, tubular and irregularly shaped calcium carbonate concretions, 0.50-2.50 cm in diameter; common gastropods and pelecypods; violent effervescence; gradual smooth boundary. |
545-628 | 4Ck | IV | Very pale brown (10YR 7/3) loam, brown (10YR 4/3) moist; massive; very hard, friable; common fine pores; common films of calcium carbonate; common gastropods and pelecypods; violent effervescence; abrupt smooth boundary. |
628-645 | 5C | IV | Brown (10YR 5/3) loamy fine sand, brown (10YR 4/3) moist; single grain; soft, loose; prominent crossbedding; many gastropods and pelecypods; strong effervescence; abrupt boundary. |
645-662 | 6Ck | IV | Pale-brown (10YR 6/3) fine sandy loam, brown (10YR 4/3) moist; massive; hard, friable; common films and threads of calcium carbonate; common fine pores; common gastropods; violent effervescence; abrupt smooth boundary. |
662-670 | 6C1 | IV | Pale-brown (10YR 6/3) to light-brownish-gray (10YR 6/2) gravelly sandy loam, brown (10YR 4/3) moist; single grain, loose; few films of calcium carbonate; many gastropods; violent effervescence; abrupt smooth boundary. |
670-713 | 6C2 | IV | Pale-brown (10YR 6/3) fine sandy loam, brown (10YR 5/3) moist; massive; hard, friable; common films of calcium carbonate; few fine pores; many gastropods; violent effervescence; abrupt smooth boundary. |
713-734 | 6C3 | IV | Light-brownish-gray (10YR 6/2) very gravelly loamy sand, grayish-brown (10YR 5/2) moist; massive to single grain, loose; few fine films of calcium carbonate; violent effervescence; irregular boundary. |
734+ | 7R | Limestone. | |
a. Welded soil. |
Table A.16--Description of section at site 14HO316 (locality HC-2) in Hackberry Creek valley
Location: Hodgeman County, KS; SE SE sec. 13, R. 26 W., T. 21 S.
Landscape position: T-2 terrace
Slope: <1 %
Vegetation: native grasses
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-12 | Ap | I | Grayish-brown (10YR 4/2) silt loam, dark-grayish-brown (10YR 3/2) moist; weak fine granular structure; very friable; many fine roots; noneffervescent; clear smooth boundary. |
12-43 | A | I | Dark-brown (10YR 3/3) silt loam, very dark grayish-brown (10YR 3/2) moist; weak medium granular structure; very friable; common fine roots; common earthworm casts; noneffervescent; gradual smooth boundary. |
43-65 | Bw | I | Brown (10YR 5/3) light silty clay loam, brown (10YR 4/3) moist; moderate coarse subangular blocky parting to medium granular structure; friable; few fine and medium roots; common earthworm casts; common fine and few medium pores; noneffervescent; gradual smooth boundary. |
65-103 | Bk | I | Pale-brown (10YR 6/3) light silty clay loam, brown (10YR 4/3) moist; moderate coarse subangular blocky parting to medium granular structure; friable; common films and threads of calcium carbonate; few fine and medium roots; common earthworm casts; common fine pores, strong effervescence; gradual smooth boundary. |
103-155 | Ck | I | Pale-brown (10YR 6/3) silt loam, brown (10YR 5/3) moist; massive; hard when dry, firm when moist; common thin lenses of very fine sand; few fine roots; common threads of calcium carbonate; common fine pores; strong effervescence; abrupt smooth boundary. |
155-176 | 2Akb | I | Dark-grayish-brown (10YR 4/2) silty clay loam, very dark grayish-brown (10YR 3/2) moist; moderate medium and fine granular structure; friable; few fine roots; common films and threads of calcium carbonate; common fine pores; strong effervescence; gradual smooth boundary. |
176-207 | 2ACkb | I | Grayish-brown (10YR 5/2) silt loam, dark-grayish-brown (10YR 4/2) moist; moderate fine granular structure; friable; few fine threads of calcium carbonate, many fine and medium pores; common lenses of very fine sand; strong effervescence; abrupt smooth boundary. |
207-233 | 3Akb | I | Dark-grayish-brown (10YR 4/2) silt loam, very dark grayish-brown (10YR 3/2) moist; weak fine granular structure; friable; few fine threads of calcium carbonate; many fine pores; strong effervescence; gradual smooth boundary. |
233-245 | 3ACkb | I | Brown (10YR 4/3) loam, dark-brown (10YR 3/3) moist; weak fine granular structure; friable; few fine threads of calcium carbonate; common fine pores; many faint lenses of very fine sand; strong effervescence; abrupt smooth boundary. |
245-271 | 4Akb | II | Dark-grayish-brown (10YR 3/2) silt loam, very dark grayish-brown (10YR 3/2) moist; weak medium and fine granular structure; friable; few threads and flecks of calcium carbonate; many fine pores; strong effervescence; gradual smooth boundary. |
271-323 | 4ACkb | II | Brown (10YR 5/3) silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; few films and threads of calcium carbonate; many fine pores; strong effervescence; abrupt smooth boundary. |
323-335 | 5Akb | II | Brown (10YR 4/3) silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; slightly hard when dry, friable when moist; common threads of calcium carbonate; few fine pores; strong effervescence; gradual smooth boundary. |
335-349 | 5ACkb | II | Brown (10YR 5/3) loam, dark-brown (10YR 3/3) moist; weak fine granular structure; slightly hard when dry, friable when moist; common threads of calcium carbonate; many fine pores; strong effervescence; abrupt smooth boundary. |
349-365 | 6Akb | II | Brown (10YR 4/3) loam, dark-brown (10YR 3/3) moist; weak fine granular structure; friable; common threads and flecks of calcium carbonate; many fine pores; strong effervescence; gradual smooth boundary. |
365-417 | 6Ck | II | Brown (10YR 5/3 and 4/3) finely stratified loam and very fine sand, dark-brown (10YR 3/3) moist; soft; many fine pores; few films of calcium carbonate in pores; many thin discontinuous lenses of fine and medium sand; common discontinuous lenses of well- to subrounded pebbles; strong effervescence; abrupt smooth boundary. |
417-432 | 7Akb | II | Brown (10YR 4/3) silt loam, brown (10YR 3/3) moist; weak fine granular structure; friable; few fine threads of calcium carbonate; common fine pores; strong effervescence; gradual smooth boundary. |
432-451 | 7ACkb | II | Brown (10YR 5/3) loam, dark-brown (10YR 3/3) moist; weak fine granular structure; friable; common fine threads of calcium carbonate; common fine pores; strong effervescence; abrupt smooth boundary. |
451-491 | 8Akb | II | Brown (10YR 4/3) silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; friable; common films and threads and few fine hard concretions of calcium carbonate; many fine pores; strong effervescence; gradual smooth boundary. |
491-536 | 8Bkb | III | Brown (10YR 4/3) silty clay loam, dark-brown (10YR 3/3) moist; weak fine subangular blocky parting to fine and medium granular structure; firm; common films and threads and few fine hard concretions of calcium carbonate; many fine pores; strong effervescence; gradual smooth boundary. |
536-595 | 8BCkb | III | Brown (10YR 5/3) silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; friable; common threads and few fine hard concretions of calcium carbonate; many fine pores; strong effervescence; gradual smooth boundary. |
595-654 | 8Ck | III | Brown (10YR 5/3) loam, brown (10YR 4/3) moist; weak fine granular structure; friable; common small and few large hard calcium carbonate concretions; many fine pores; strong effervescence; abrupt smooth boundary. |
654-704 | 9Akb | IV | Brown (10YR 4/3) heavy silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; friable; few fine threads and large hard concretions of calcium carbonate; many fine pores; strong effervescence; gradual smooth boundary. |
704-724 | 9ACkb | IV | Brown (10YR 5/3) loam, brown (10YR 4/3) moist; weak fine granular structure; friable; few thin threads and large hard concretions of calcium carbonate; many fine pores; strong effervescence; gradual smooth boundary. |
724-805 | 9Ck | IV | Brown (10YR 5/3) loam grading downward into sandy loam, sand, and gravel, brown (10YR 4/3) moist; massive; friable; few large hard concretions of calcium carbonate; weak effervescence. |
Table A.17--Description of section at site 14FD311 in Sawlog Creek valley
Location: Ford County, KS; SE SE sec. 2, R. 25 W., T. 25 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: native grasses
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-15 | A | I | Grayish-brown (10YR 4/2) silt loam, dark-grayish-brown (10YR 4/2) moist; weak fine granular structure; friable; many fine roots; moderate effervescence; gradual smooth boundary. |
15-45 | C | I | Brown (10YR 5/3) loam, brown (10YR 4/3) moist; weak fine granular structure; slightly hard, friable; few fine roots; strong effervescence; abrupt smooth boundary. |
45-60 | 2Ab | II | Grayish-brown (10YR 5/2) silt loam, dark-grayish-brown (10YR 4/2) moist; weak very fine granular structure; slightly hard, friable; few fine roots; few fine pores; strong effervescence; gradual smooth boundary. |
60-82 | ACb | II | Brown (10YR 5/3) silt loam, brown (10YR 4/3) moist; weak very fine granular structure; slightly hard when dry, friable when moist; few fine roots; few fine pores; strong effervescence; clear smooth boundary. |
82-91 | 3Ab | II | Grayish-brown (10YR 5/2) silt loam, dark-grayish-brown (10YR 5/2) moist; weak fine granular structure; slightly hard, friable; few fine roots; few fine pores; strong effervescence; gradual smooth boundary. |
91-115 | 3ACb | II | Brown (10YR 5/3) silt loam, brown (10YR 4/3) moist; weak very fine granular structure; slightly hard, friable; few fine roots; few fine pores; strong effervescence; gradual smooth boundary. |
115-127 | 3Cb | II | Stratified brown (10YR 5/3) silt loam and loam, brown (10YR 4/3) moist; slightly hard, friable; few fine roots; few fine pores; strong effervescence; clear smooth boundary. |
127-142 | 4Ab | II | Grayish-brown (10YR 5/2) loam, dark-grayish-brown (10YR 4/2) moist; weak very fine granular structure; slightly hard, friable; few fine roots; few fine pores; gravel lens at a depth of 135-140 cm; strong effervescence; gradual smooth boundary. |
142-200 | 4C | II | Laminated brown (10YR 5/3) and pale-brown (10YR 6/3) loam and very fine sandy loam, brown (10YR 4/3) moist; massive; slightly hard, friable; few fine pores; few fine roots; strong effervescence; abrupt wavy boundary. |
200-264 | 5Akb | III | Dark-grayish-brown (10YR 4/2) loam, very dark grayish-brown (10YR 3/2) moist; moderate medium granular structure; hard, friable; few films and threads of calcium carbonate; many gastropods; moderate effervescence; gradual smooth boundary. |
264-270 | 5ACkb | III | Grayish-brown (10YR 5/2) loam, dark-grayish-brown (10YR 4/2) moist; weak fine granular structure; slightly hard, friable; common films and few threads of calcium carbonate; many gastropods; strong effervescence; gradual smooth boundary. |
270-365 | 5C | III | Stratified coarse and fine alluvium; very dark grayish-brown (10YR 3/2) strata of silt loam and silty clay loam alternating with dark-grayish-brown (10YR 4/2) and grayish-brown (10YR 5/2) strata of gravelly sand and sandy loam; common flecks of calcium carbonate; many gastropods and pelecypods; strong effervescence; irregular boundary. |
365+ | 6R | Limestone. |
Table A.18--Description of Doll section at locality PR-11
Location: Finney County, KS; SW NW sec. 6, R. 29 W., T. 22 S.
Landscape position: T-1 terrace
Slope: <1 %
Vegetation: native grasses
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-26 | A | I | Brown (10YR 5/3) silt loam, dark-brown (10YR 3/3) moist; weak fine granular structure; friable; common fine roots; strong effervescence; gradual smooth boundary. |
26-60 | Bw | I | Pale-brown (10YR 6/3) loam, brown (10YR 5/3) moist; weak fine subangular blocky structure; friable; common fine and medium pores; many earthworm casts; common fine roots; violent effervescence; gradual smooth boundary. |
60-120 | C | I | Pale-brown (10YR 6/3) fine sandy loam; brown (10YR 5/3) moist; massive; slightly hard, friable; few fine and medium pores; few earthworm casts; common fine roots; violent effervescence; abrupt smooth boundary. |
120-141 | 2Akb | II | Brown (10YR 5/3) silt loam, dark-brown (10YR 3/3) moist; moderate fine granular structure; hard, friable; common fine pores; few earthworm casts; pale- brown (10YR 6/3) fine sandy loam in krotovinas; few fine roots; few fine threads of calcium carbonate; strong effervescence. |
141-149 | 2ABkb | II | Light-grayish-brown (10YR 6/2) to pale-brown (10YR 6/3) silt loam; weak fine subangular blocky structure; slightly hard, friable; many fine pores; few fine roots; few fine threads and films of calcium carbonate; hard, friable; strong effervescence; gradual smooth boundary. |
149-175 | 2Bkb | II | Pale-brown (10YR 6/3) to light-yellowish-brown (10YR 6/4) silt loam, brown (10YR 5/3) moist; weak fine subangular blocky structure; hard, friable; common fine and medium pores; few fine roots; few films and threads of calcium carbonate; violent effervescence; gradual smooth boundary. |
175-193 | 2BCkb | II | Pale-brown (10YR 6/3) to very pale brown (10YR 7/3) silt loam; massive; hard, friable; common fine and medium pores; few fine roots; few films and threads of calcium carbonate; few fine soft carbonate masses; violent effervescence; abrupt smooth boundary. |
193-254 | 3Akb | III | Brown (10YR 5/3) silt loam, dark-brown (10YR 3/3) moist; moderate fine and medium granular structure; hard, friable; many fine pores; few fine roots; common films and threads of calcium carbonate; few fine soft carbonate masses; few large krotovinas filled with pale-brown (10YR 6/3) silt loam; strong effervescence; gradual smooth boundary. |
254-265 | 3Bkb | III | Brown (10YR 5/3) silt loam, brown (10YR 4/3) moist; weak fine subangular blocky structure; few fine roots; common fine and medium pores; common films, threads, and fine soft masses of calcium carbonate; violent effervescence. |
Table A.19--Description of Doll silo at locality PR-12
Location: Finney County, KS; NE SE sec. 8, R. 29 W., T. 23 S.
Landscape position: T-3 terrace
Slope: 1 %
Vegetation: crops
Depth (cm) |
Soil horizon |
Unit | Description |
---|---|---|---|
0-25 | Ap | I | Brown (10YR 5/3) silt loam, brown (10YR 4/3) moist; weak fine granular structure; slightly hard, friable; common fine roots; weak effervescence; clear smooth boundary. |
25-35 | A | I | Brown (10YR 5/3) silt loam, dark-brown (10YR 3/3) moist; moderate medium granular structure; slightly hard, friable; common fine roots; common earthworm casts; noneffervescent; gradual smooth boundary. |
35-68 | ABk | I | Yellowish-brown (10YR 5/4) heavy silt loam, dark-yellowish-brown (10YR 4/4) moist; common medium faint reddish-yellow (7.5YR 6/6) mottles; moderate fine subangular blocky structure; slightly hard, friable; common earthworm casts; common fine roots; few medium pores; few films of calcium carbonate; matrix is noneffervescent; gradual smooth boundary. |
68-103 | Btk1 | I | Yellowish-brown (10YR 5/6) light silty clay loam, dark-yellow ish-brown (10YR 4/6) moist; common medium faint reddish-yellow (7.5YR 6/6) mottles; moderate fine subangular blocky structure; slightly hard, friable; few earthworm casts; few fine roots; common fine and few medium pores; few discontinuous clay films; common films and threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
103-130 | Btk2 | I | Light-brown (7.5YR 6/4) silty clay loam, strong brown (7.5YR 4/6) moist; common medium faint reddish-yellow (7.5YR 6/6) mottles; moderate medium subangular blocky structure; slightly hard, friable; few fine roots; common fine and few medium pores; few discontinuous clay films; common films and threads of calcium carbonate; strong effervescence; gradual smooth boundary. |
130-145 | BCk | I | Light-brown (7.5YR 6/4) loam, strong brown (7.5YR 4/6) moist; common medium faint reddish-yellow (7.5YR 6/6) mottles; moderate fine subangular blocky structure; hard, friable; few fine roots; common fine pores; many films and threads of calcium carbonate; strong effervescence; abrupt smooth boundary. |
145-190 | 2Bkb1 | II | Light-yellowish-brown (7.5YR 6/4) silty clay loam, pink (7.5YR 7/4) moist; moderate medium subangular blocky structure; hard, firm; 85% of matrix is whitened by calcium carbonate; common fine hard carbonate concretions; common fine and medium soft calcium carbonate masses; rounded siliceous pebbles form a stone line at top of horizon; few thin lenses of siliceous pebbles within horizon; few fine pores; violent effervescence; gradual smooth boundary. |
190-230 | 2Bkb2 | II | Light-yellowish-brown (10YR 6/4) loam, brown (7.5YR 5/4) moist; common medium distinct reddish-yellow (7.5YR 6/8) mottles; moderate medium subangular blocky structure; hard, firm; 50% of matrix is whitened by calcium carbonate; many films and threads of calcium carbonate; common fine hard carbonate concretions; common fine and medium soft calcium carbonate masses; violent effervescence; gradual smooth boundary. |
230-320+ | 2BCkb | II | Light-brown (10YR 6/4) fine sandy loam, brown (7.5YR 5/4) moist; moderate fine subangular blocky structure; hard, firm; common films and threads of calcium carbonate; few fine hard carbonate concretions; few soft carbonate masses; violent effervescence. |
Kansas Geological Survey, Geology
Placed on web July 8, 2016; originally published 1994.
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