Marshall County Sec. 31, T. 3 S., R. 7 E

Wreford formation, east side Big Blue Valley, 1 1/4 miles south of Schroyer, Kansas; badly slumped Measured By Condra and Upp, 1931, page 35 Remarks: Section no. 11
	Unit No. Description Thickness   Schroyer limestone   9 Limestone, poorly exposed, cherty 5 ft. 8 Limestone, badly weathered, irregular 3.5 ft. 7 Limestone, dark gray, massive, uneven at top and bottom, grading into shaly lime 5-6 ft. 6 Limestone, shaly, slabby 3.5 ft. 5 Limestone, weathers slabby to shaly with Aviculopecten, etc. 3 ft. 4 Limestone, massive, irregular 1.66 ft.   Havensville shale   3 Shale, slabby 3 ft. 2 Shale, largely olive and gray and with some fossils 5 ft. 1 Four Mile limestone, cherty, massive, with thin shale partings 7.5-8 ft.
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