Kansas Geological Survey, Current Research in Earth Sciences, Bulletin 244, part 3
The Relationship Between Geology and Landslide Hazards of Atchison, Kansas, and Vicinity--Table 3

Table 3. Soil analyses performed on 44 samples.

	Atterburg limits
Rock unit	Liquid limit	Plastic limit	Plasticity index	USCS	Specific gravity	Activity
alluvium
landslides	41.7-54.6	19.0-21.2	21.0-36.9	CH,CL	2.74	0.71-1.90
loess	27.0-50.2	18.3-23.2	4.2-31.1	CL, ML, CH		0.50-0.94
"Nortonville clay"	61.7-66.2	17.2-17.9	43.7-49.0	CH		0.99-1.08
glacial drift	32.1-59.2	13.6-18.2	18.4-41.1	CH, CL, SC		0.80-1.34
Atchison formation
Topeka Limestone
Calhoun Shale	49.6	22.5	27.2	CL	2.73	0.74
Deer Creek Limestone	37.4-60.1	18.4-24.0	19.0-36.1	CH, CL	2.75-2.85	0.71-0.86
Tecumseh Shale	41.2	25.8	15.4	ML		0.74
Lecompton Limestone
Kanwaka Shale	36.2-65.1	21.2-26.1	15.1-39.0	CH, CL	2.74-2.83	0.43-0.84
Oread Limestone
Lawrence Formation	35.3-53.5	18.9-22.2	16.4-31.2	CH, CL	2.74-2.82	0.50-0.70