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.
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 |
_f |
Flathead Quartzite |
04S |
10E |
23 |
|
Composite of Black Mountain Area |
45.474718479 |
-110.455612315 |
TRS-SEC |
NAD83 |
|
|
Pinkish gray,pale red to blackish red, grayish purple, locally gray to light brown ORTHOQUARTZITE. Presence of blakc iron oxide grains and layers. Olive and vlakc shale layers common near the top. |
Medium to very coarse |
quartz cement contains limonite or hematite |
Subrounded to well rounded |
poorly |
300 |
probably not |
*q |
Quadrant Quartzite |
11N |
06W |
30 |
|
Along the power line in this section |
46.6776794638 |
-112.400598235 |
TRS-SEC |
NAD83 |
|
|
White to gray orthoquartzite with lenticular light gray to black chert layers. 5-10% porosity. |
very fine to fine |
compressed and well cemented with quartz cement |
subrounded |
poorly |
20 |
no |
*q |
Quadrant Quartzite |
11N |
06W |
30 |
|
Along the power line in this section |
46.6776794638 |
-112.400598235 |
TRS-SEC |
NAD83 |
|
|
Light gray to gray orthoquartzite where yellow and reddish hues are present.Some worm borings with are poorly cemented and porous. Bottom is silty and somewhat calcareous |
silt to coarse, mostly fine |
pressed and well cemented with quartz |
rounded to well rounded |
Fair to well |
150 |
probably not |
*q |
Quadrant Quartzite |
10N |
06W |
20 |
|
Lower 125ft of last section in this area |
46.60551716225 |
-112.379593479 |
TRS-SEC |
NAD83 |
|
|
yellowish gray to grayish yellow green poorly bedded, somewht porous, and slightly calcareous quartzite, Flags 2.5 - 5 cm thick. |
fine |
slightly calcareous |
|
|
125 |
maybe |
Kblf |
Colorado Group Blackleaf Formation Flood Member Lower Quartzite Bed |
11N |
07W |
36 |
|
|
46.66336209585 |
-112.421582114 |
TRS-SEC |
NAD83 |
|
|
Colorless, white, very light gray to dark gray, bluish gray, and moderate brown quartzite. Locally has as much as 75%fine siltmatrix, cross bedded and ripplemarked. Bed is gradational with underlying quartzite |
fine to medium grained |
|
|
|
70 |
probably not |