Austin Fm. | ||||||||||||||
M | Ig total (μR/h) | k (%) | U (ppm) | Th (ppm) | Th/U | |||||||||
Range | Av. | SD | Range | Av. | SD | Range | Av. | SD | Range | Av. | SD | Av. | ||
N = 12 | 4 - 4.4 | 4.20 | 0.2 | 0.9 - 1.0 | 0.9 | 0.01 | 2.1 - 2.2 | 2.15 | 0.07 | 3.9 - 5.6 | 4.75 | 1.2 | 3.7 | |
Eagle Ford Fm. |
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N = 10 | 4 - 5 | 4.32 | 0.3 | 0.8 - 1.3 | 0.93 | 0.15 | 1 - 3 | 2.10 | 0.5 | 4.1 - 7.1 | 5.40 | 1.0 | 2.8 | |
Washita Group |
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N = 29 | 3.4 - 5.5 | 4.42 | 0.4 | 0.6 - 1.1 | 0.87 | 0.1 | 0.5 - 3.5 | 2.10 | 0.7 | 4.3 - 8.1 | 5.70 | 1.0 | 3.2 | |
Kiamichi Fm. |
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N = 9 | 3.5 - 4.7 | 4.26 | 0.3 | 0.6 - 0.9 | 0.74 | 0.1 | 1.7 - 3.4 | 2.44 | 0.5 | 3.6 - 7.6 | 5.27 | 1.2 | 2.3 | |
Aurora Fm. |
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N = 39 | 3 - 4.9 | 3.40 | 0.4 | 0.5 - 1.1 | 0.64 | 0.1 | 0.2 - 3.7 | 1.78 | 0.6 | 2.9 - 8.7 | 4.58 | 1.4 | 3.6 | |
La Peña Fm. |
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N = 7 | 3.8 - 4.8 | 4.37 | 0.3 | 0.7 - 1.0 | 0.8 | 0.1 | 0.7 - 3.5 | 2.37 | 1 | 3.3 - 7.5 | 5.60 | 1.5 | 3.4 | |
Cupido Fm. |
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N = 34 | 3.7 - 5.5 | 4.20 | 0.4 | 0.4 - 1.8 | 0.86 | 0.2 | 1.1 - 3.5 | 2.28 | 0.5 | 3.6 - 7.8 | 5.15 | 1.1 | 2.4 | |
Taraise Fm. |
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N = 5 | 3.7 - 4.4 | 4.12 | 0.3 | 0.6 - 1.0 | 0.84 | 0.1 | 1.2 - 3.1 | 2.42 | 0.7 | 2.8 - 5.6 | 4.40 | 1.1 | 2.1 | |