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Marshall County

Sec. 27, T. 3 S., R. 6 E
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W 1/2 NW 1/4 of sect. 27; W 1/2 NW 1/4 of sect. 28
Measured By M.K. Elias, 1932.
Remarks IV-9
 
Unit No. Description Thickness
  Luta limestone member  
14 Limestone, crystalline, fossiliferous, softer near the base 2 ft.
  Cresswell limestone member  
13 Limestone, with geodes at the top, softer toward the base 4 ft.
12 Limestone, yellowish green-gray, crystalline 1 ft.
  Grant shale member  
11 Shale 12 ft.
  Stoval limestone member  
10 Limestone, largely replaced by flint 0.8 ft.
  Gage shale formation  
9 Shale 1 ft.
8 Covered 33 ft.
7 Limestone, crystalline, greenish-gray 1 ft.
6 Covered 14 ft.
  Towanda limestone formation  
5 Limestone, flaggy, green, banded, with small pelecypods (Pleurophorus?) 2.7 ft.
4 Shale 1 ft.
3 "Box work," green 1 ft.
2 Shale, green 1.5 ft.
1 "Box work," green 2 ft.

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