Marshall County Sec. 26, T. 4 S., R. 8 E

NW corner NE 1/4 sec 26 Measured By M.K. Elias, 1932 Remarks II-5
	Unit No. Description Thickness   Cottonwood limestone member   12 Limestone, massive, full of fusulinids, with two zones of flint nodules in the middle 2 ft. 11 Limestone, massivel fusulinids and zone of flint nodules in the upper 0.5 foot; very small flint nodules; few Derbyia and a coral in the lower 0.5 foot 1.8 ft. 10 Limestone, massive, with flint nodules, Pinna, and a coral at the top 1 ft. 9 Limestone 0.4 ft. 8 Limestone, massive 1.2 ft. 7 Limestone 0.4 ft. 6 Mudstone, splittery, with Aviculopecten and Pinna 0.4 ft.   Eskridge shale formation   5 Shale, green 5.5 ft. 4 Mudstone, soft, roughly weathered, light-green at the top and base, light-purple in the middle 3 ft. 3 Shale, green 1 ft. 2 Shale, purple 4 ft. 1 Shale, red 3 ft.
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