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.

General Information
Reference Goers, J.W., 1964, Geology and groundwater resources of the Stockett-Smith River area, Montana: Master of Science, University of Montana, M.S. thesis, 123 p.
Notes Sandstones of the Kibbey Formation in this area are friable and poorly indurated (p. 30).
Measured Section Details
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
Mo Section 4: Partial Measured Section Otter Formation 17N 04E 25 DC 1/4 mile above Calvert Montana 47.1909249443 -111.1633412575 TRS-SEC NAD83 140 15 sandstone, light gray, massive, minor planar corssbeds, fine grained calcareous, VERY friable, crubles in hand. well rounded well sorted 16 YES
Mo 17N 04E 25 DC 1/4 mile above Calvert Montana 47.1909249443 -111.1633412575 TRS-SEC NAD83 140 3 sandstone, tan, contains thin discontinuous carbonaceous partings fine calcareous, friable 0.80000000000000004 no
Kblf Section 8: Measured section of Flood Member of Blackleaf formation ad Upper Portionof the Kootenai formation 19N 03E 17 BD Southside of WilsonButte 47.40043751315 -111.3830091005 TRS-SEC NAD83 148 37 sandstone: light tan, massive toward base, irregular thin 4" beds to top contains quartz, plagioclase and minor chert. slighty calcareous 52.5 maybe
Kblf Section 8: Measured section of Flood Member of Blackleaf formation ad Upper Portionof the Kootenai formation 19N 03E 17 BD Southside of WilsonButte 47.40043751315 -111.3830091005 TRS-SEC NAD83 148 35 Tan to gray, thin beded (2-3"), small assymetrical ripplemrks, worm trails ubiquitour on bedding plane. Quartz with minor amounts of plagioclase and chert. fine to medium grained slightly calcareous (pg 57) 20 maybe