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 |
kk |
Porcupine Ridge |
07S |
04E |
21 |
DB |
Gallatin County |
45.20843010435 |
-111.237925662 |
TRS-SEC |
NAD83 |
|
29 |
very light gray, hematite rich rims up to 1/4 inch thick, thin to thick bedded, splits slabby to blocky, forms cliffs and ledgy slopes |
fine |
clean, silicious |
|
well sorted |
54 |
probably not |
kk |
Porcupine Ridge |
07S |
04E |
21 |
DB |
Gallatin County |
45.20843010435 |
-111.237925662 |
TRS-SEC |
NAD83 |
|
27 |
ss. Pale red, weathers grayish red and pale reddish brown. Thin to medium bedded,forms an irregular cliff. Several hematite rinds like unit29 above. |
|
|
|
|
12.199999999999999 |
no |
kk |
Porcupine Ridge |
07S |
04E |
21 |
DB |
Gallatin County |
45.20843010435 |
-111.237925662 |
TRS-SEC |
NAD83 |
|
25 |
pale grayish red with brown specs, weathers grayish pink, medium to thick bedded, forms ledgy slopes, splits slabby to blocky |
fine |
|
|
|
5.4000000000000004 |
no |
kk |
Porcupine Ridge |
07S |
04E |
21 |
DB |
Gallatin County |
45.20843010435 |
-111.237925662 |
TRS-SEC |
NAD83 |
|
24 |
light grayish brown with brown and black specs, weater a very pale orange, thick bedded, slpits blocky, forms nearly bertical cliff, weathers to rubble |
|
|
|
|
5 |
no |
kk |
Porcupine Ridge |
07S |
04E |
21 |
DB |
Gallatin County |
45.20843010435 |
-111.237925662 |
TRS-SEC |
NAD83 |
|
22 |
light borwn to light gray at top, weathers with some iron staining, thin bedded, splits flaggy to slabby, forms ledgy slopes, contains few shaley lenses |
fine |
|
|
|
17.600000000000001 |
no |
kk |
Porcupine Ridge |
07S |
04E |
21 |
DB |
Gallatin County |
45.20843010435 |
-111.237925662 |
TRS-SEC |
NAD83 |
|
20 |
lightgray, in places reddish brown,forms ledgy slopes, massive |
fine |
|
|
well sorted |
10.4 |
maybe |
kk |
Porcupine Ridge |
07S |
04E |
21 |
DB |
Gallatin County |
45.20843010435 |
-111.237925662 |
TRS-SEC |
NAD83 |
|
6 |
light grayish brown, stained reddish brown, thin to medium bedded, forms ledgy slopes |
very fine |
silicious |
|
|
6 |
no |
kk |
Porcupine Ridge |
07S |
04E |
21 |
DB |
Gallatin County |
45.20843010435 |
-111.237925662 |
TRS-SEC |
NAD83 |
|
5 |
clean, white to very light gray, medium bedded forms ledges |
very fine |
slightly calcareous |
|
|
8.5 |
probably not |
kk |
Porcupine Ridge |
07S |
04E |
21 |
DB |
Gallatin County |
45.20843010435 |
-111.237925662 |
TRS-SEC |
NAD83 |
|
3 |
pinkish gray, weathers to moderate reddish orange, thin to medium bedded, splits flaggy to blocky, cross bedded |
coarse to very coarse |
|
|
|
15.300000000000001 |
maybe |