Marshall County Sec. 4, T. 3 S., R. 7 E

1 1/4 miles south of Marysville, Highway cut, center sect. 4 Measured By M.K. Elias, 1932 Remarks: IV-10
	Unit No. Description Thickness   Holmesville shale formation   16 Limestone, crystalline, yellowish-gray, cavernous 1 ft. 15 Mudstone, soft 2 ft. 14 Covered 11.5 ft. 13 Limestone, very calcareous and fossiliferous (Meekella and other fossils) 2.5 ft. 12 Mudstone, cavernous 1 ft. 11 Shale 0.2 ft. 10 Limestone 1.5 ft. 9 Shale 1 ft.   Fort Riley limestone member   8 Limestone 3.5 ft. 7 Shale 1 ft. 6 Limestone, very fossiliferous (Straparollus and other fossils) 0.5 ft.   Oketo shale member   5 Shale 4.2 ft. 4 Limestone, splittery 1 ft. 3 Limestone, solid 0.8 ft. 2 Shale, blue-gray 4 ft.   Florence limestone member   1 Limestone with bands of flint
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