Prev Page--Economic Geology

Table of Contents

Rock Formations

Stratigraphy

Mineral Resources

Economic Geology

Subsurface Rocks

Ground-water Resources

Ground-water Recharge

Ground-water Discharge

Availability

Chemical Character

Ground-water Regions

Records of Wells

References

Table 1

Stratigraphic unit, thickness, and type of sample	Location	SiO2	Al2O3	Fe2O3	TiO2	CaO	MgO	P2O5	SO3	Ignition loss	Calculated CaCO3*	Calculated MgCO3
Herington ls, composite of four spot samples	NW NE 3-22-6E	13.35	1.71	1.37	0.55	25.50	18.83	0.17	tr.	38.93	45.47	39.39
Krider ls, spot sample of 0.8-ft bed in upper part	NW NE 3-22-6E	10.27	1.62	1.32	0.77	26.68	18.72	0.09	tr.	40.49	47.57	39.16
Cresswell ls, composite of complete member (12.8 ft)	SW NW 16-22-6E	6.34	0.85	0.76	0.21	50.04	1.89	0.14	....	40.01	89.23	3.95
Cresswell ls, composite of lower 5.6 ft	NE NW 17-22-7E	5.30	1.72	0.14	0.56	50.06	0.68	0.20	0.26	41.01	89.26	1.42
Towanda ls, composite of 10 spot samples of ls beds of member	SW SW 24-21-6E	2.84	1.11	0.27	0.17	52.59	0.65	0.03	tr.	41.88	93.78	1.36
Ft. Riley ls, composite of 8.85 ft lower part of member	NW NE 6-22-6E	5.69	1.65	0.65	0.15	50.18	0.66	tr.	tr.	40.44	89.48	1.38
Threemile ls, composite of upper 13.3 ft without chert	NW NE 18-19-8E	1.72	0.30	0.32	tr.	54.56	0.48	tr.	nil	42.92	97.29	1.00
Crouse ls (upper) composite of lower massive 2.75 ft of bed	NW NW 4-18-9E	4.94	0.85	1.49	0.45	50.83	0.28	tr.	tr.	40.46	90.64	0.59
Crouse ls (lower) composite of all 3.10 ft of lower Crouse ls	NW NW 4-18-9E	4.41	0.83	0.58	0.41	51.48	0.74	tr.	tr	41.20	91.80	1.55
Cottonwood ls, composite of ±5 ft (complete member)	SE SE 30-19-7E	5.50	1.74	0.49	0.69	50.09	0.65	0.15	0.32	40.71	89.32	1.36
Cottonwood ls, composite of ±5 ft (complete member)	NE NW 36-19-8E	4.75	0.98	0.28	**	50.55	1.35	0.17	tr.	41.13	90.14	2.82
Cottonwood ls, composite of 3.2 ft (complete bed)	NW SW 3-22-9E	6.85	1.18	0.59	**	49.53	1.78	0.20	tr.	40.24	88.32	3.72
Eskridge sh (lower ls bed) 3.9 ft, composite of complete bed	SW NW 23-19-8E	1.62	1.30	0.36	....	52.78	0.57	0.12	0.12	42.96	94.11	1.19
Upper Neva, composite of complete upper bed, 5.1 ft	SW NW 23-19-8E	5.09	1.03	0.42	**	50.97	0.56	0.11	0.21	41.38	90.89	1.17
Middle Neva, composite of complete middle Neva, 3.8 ft	SW NW 23-19-8E	6.05	2.31	0.21	**	50.04	0.75	0.09	0.22	37.04	89.23	1.56
Glenrock ls, composite of upper 5.95 ft	SE NW 26-19-7E	2.85	0.76	0.32	**	52.89	1.05	0.14	tr.	42.07	94.31	2.20
Long Creek ls, composite of lower 9.75 ft of member	NW SE 24-21-9E	13.69	1.53	0.38	0.23	41.66	4.22	0.06	†	37.20	74.29	8.88

* Not corrected for small percentages of calcium in phosphates and sulfates.
** Reported with Al₂O₃.
† S + SO₄ = 0.12; FeS₂ = 0.97.

Prev Page--Economic Geology