The data displayed below were collected during a joint project between the following departments at Montana Tech of The University of Montana: Geophysical Engineering and the Montana Bureau of Mines and Geology. The samples represent sandstones collected and analyzed for their potential use as proppant material.
Reference | Theodosis, S.D., 1956, The geology of the Melrose area, Beaverhead and Silver Bow Counties, Montana: Indiana University, Ph.D. dissertation, 118 p. |
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Notes | The uppermost Quadrant at one location is described as friable (p. 42). NW1/4, Sec. 30, T. 01 S., R. 09 W., and NW1/4 Sec. 13, T. 01 S., R. 09 W.,sec.13, NW. Elsewhere the Quadrant is tightly cemented in the Melrose area. |
Unit Symbol | Name | Township | Range | Section | 1/4 Section | Location | Latitude | Longitude | Geomethod | Datum | Page Number | Sub Unit Id | Sandstone Description | Grain Size | Cementation | Roundness | Sorting | Thickness (ft) | Suitability |
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*Ma | Table 3. Amsden Section | 02S | 09W | 7 | B | North side of Canyon Creek | 45.68191921925 | -112.7686676135 | TRS-SEC | NAD83 | 37 | sandstone- shaly greenish to maroon, massive beds | calcareous | 19.100000000000001 | probably not | ||||
*Ma | Table 3. Amsden Section | 02S | 09W | 7 | B | North side of Canyon Creek | 45.68191921925 | -112.7686676135 | TRS-SEC | NAD83 | 37 | sandstone- thin bedded, reddish brown to maroon | calcareous | 36.899999999999999 | probably not | ||||
*Ma | Table 3. Amsden Section | 02S | 09W | 7 | B | North side of Canyon Creek | 45.68191921925 | -112.7686676135 | TRS-SEC | NAD83 | 37 | sandstone-thin bedded (2-3 inch) grading upward to agrillaceous limestone | calcareous | 21.300000000000001 | no | ||||
*Ma | Table 3. Amsden Section | 02S | 09W | 7 | B | North side of Canyon Creek | 45.68191921925 | -112.7686676135 | TRS-SEC | NAD83 | 37 | Sandstone thin bedded (1-3") | fine grained/ coarse sandstone |