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 Harris, W.L.,1972, Upper Mississippian and Pennsylvanian sediments of Central Montana: University of Montana, Ph.D. dissertation, p. 1-58, 75-92,110-112,173-191,241-248.
Notes Sandstones of the upper Kibbey are fine to very fine grained (0.2- 0.05 mm). Coarse grained sandstones are present on the northern side of the Little Belt Mountains and to the east. Larger grains are typically rounded to well rounded and smaller grains are angular. Mostly moderately to well sorted. Friable because of incomplete calcareous cementation. The uppermost unit of the Quadrant is well indurated because of almost complete siliceous cementation.
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
Mk Section 29. Nelson Ranch 12N 20E 8 S1/2, Sec. 8, T.12N.,R.20E. 46.8163182666 -109.232710061 TRS-SEC NAD83 188 30 White sandstone medium friable poorly 1 maybe
Mk Section 29. Nelson Ranch 12N 20E 8 46.8163182666 -109.232710061 TRS-SEC NAD83 188 34 Sandstone white and cross bedded medium poorly indurated poorly 9 yes
Mk Section 30. Menard Ridge 13N 19E 36 S1/4, Sec. 36, T.13N.,R.19E. 46.8445190618 -109.2585651085 TRS-SEC NAD83 191 40 White, tan-weathering, clean fine poorly indurated 6 yes
Mk Section 30. Menard Ridge 13N 19E 36 46.8445190618 -109.2585651085 TRS-SEC NAD83 191 44 Sugary sandstone, very light tan with white weathering, thin bedded and red brown speckled fine 7 yes
Mk Section 30. Menard Ridge 13N 19E 36 46.8445190618 -109.2585651085 TRS-SEC NAD83 191 48 White with reddish weathering, thin bedded and fissile, downward gradation to silt moderate 5.5 yes
Mk Section 54. Stonehouse Canyon 11N 20E 15 A NE1/4, Sec. 15 and 36, T.11N.,R.20E. 46.7189415033 -109.184670401 TRS-SEC NAD83 243 54 Tan sandstone with light gray weathering medium -fine well indurated, calcite cemented 5 maybe
Mk Section 54. Stonehouse Canyon 11N 20E 36 NE1/4, Sec. 15 and 36, T.11N.,R.20E. 46.67160375755 -109.1477665665 TRS-SEC NAD83 243 54 Tan sandstone with light gray weathering medium -fine well indurated, calcite cemented 5 maybe
Mk Section 56. Durfee Creek Dome 12N 22E 13 D SE1/4, Sec. 13, T.12N.,R.22E. 46.7970983109 -108.8877771845 TRS-SEC NAD83 247 40 Tan fine poorly indurated 8 yes
Mk Section 56. Durfee Creek Dome 12N 22E 13 D 46.7970983109 -108.8877771845 TRS-SEC NAD83 247 42 Tan, thin bedded, cross bedded moderate 4 maybe
Mk Section 56. Durfee Creek Dome 12N 22E 13 D 46.7970983109 -108.8877771845 TRS-SEC NAD83 247 44 Sandstone, topped with porous dolomite fine Calcareous 4 maybe
Mk Section 56. Durfee Creek Dome 12N 22E 13 D 46.7970983109 -108.8877771845 TRS-SEC NAD83 247 47 sandstone medium calcareous 4 maybe
Mk Section 56. Durfee Creek Dome 12N 22E 13 D 46.7970983109 -108.8877771845 TRS-SEC NAD83 247 49 Quartzitic sandstone, maroon and white poorly indurated poorly 7 maybe
Mk Section 56. Durfee Creek Dome 12N 22E 13 D 46.7970983109 -108.8877771845 TRS-SEC NAD83 247 51 Sandstone pink with tan weathering, medium calcareous cemented, moderately indurated moderate to poor 12 maybe