Chalk Bluffs
Measured By H. Miller and E. Gutentag
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| Unit No. |
Description |
Thickness |
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15
|
Hard yellow chalk
|
10 ft.
|
|
14
|
Soft yellow chalk
|
9 ft.
|
|
13
|
Hard yellow chalk
|
3 ft.
|
|
12
|
Soft yellow chalk
|
2.5 ft.
|
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11
|
Gray chalk
|
5.5 ft.
|
|
10
|
Limonite
|
0.05 ft.
|
|
9
|
Gray chalk
|
3.3 ft.
|
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8
|
Limonite
|
0.05 ft.
|
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7
|
Gray chalk
|
1.6 ft.
|
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6
|
Limonite
|
0.05 ft.
|
|
5
|
Gray chalk
|
2.2 ft.
|
|
4
|
"Sandy" limonite bed
|
0.1 ft.
|
|
3
|
Gray chalk
|
5.5 ft.
|
|
2
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"Sandy" limonite bed
|
0.05 ft.
|
|
1
|
Light gray chalk
|
7 ft.
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