Counties, states, countries, continents, or oceans | |
Sweet Grass | county |
Montana | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Picket Pin Mountain | quadrangle 1:24,000 scale |
Gardiner | quadrangle 1:100,000 scale |
Bozeman | quadrangle 1:250,000 scale |
Watershed boundaries (USGS hydrologic units) | |
Upper Yellowstone | hydrologic unit |
Upper Yellowstone | hydrologic accounting unit |
Upper Yellowstone | hydrologic subregion |
Missouri | hydrologic region |
Unit | State | Lithology |
---|---|---|
Stillwater complex | MT | Archean |
ID | Data type | Description |
---|---|---|
Beartooth | M-Dz | Beartooth 1749 line km with spacing 1.60 km over parts of MT |
Bozeman | M/R-D | Bozeman 4433 line km with spacing 4.80 km over parts of MT-WY |
Stillwater 2000 | M/EM-D | Stillwater 2000 1914 line km with spacing 0.20 km over parts of MT |
Domain | Crust type | Region |
---|---|---|
Wyoming | Sialic protocontinent | Northern Rocky Mountains |
Sample ID | Material | Source |
---|---|---|
D-396240 | Sediment | Stream, Wet |
Sample ID | Date collected | Sample type |
---|---|---|
5019909 | 1976-10-29 | Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves. |
5041171 | 1979-08-25 | Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves. |
Sample ID | Date collected | Sample type |
---|---|---|
1013802 | 1976-10-29 | Stream water sample filtered through a 0.45 micron membrane filter and acidified to a pH of less than or equal to 1 with reagent-grade nitric acid. |
1030075 | 1979-08-25 | Stream water sample filtered through a 0.45 micron membrane filter and acidified to a pH of less than or equal to 1 with reagent-grade nitric acid. |
Sample ID | Rock type | Rock name |
---|---|---|
D549339 | igneous | mafic |
Deposit name | Deposit type | Location |
---|---|---|
Stillwater Mine | Producer | Montana, United States |
Sample ID | Sample source | Rock name |
---|---|---|
7041 | Outcrop or artificial surface exposure | Hornfels |
Sample ID | Sample source | Sample notes |
---|---|---|
D396240 | stream/river | -80 mesh NURE stream sediment; stream |
Tract name | Deposit type | Geology |
---|---|---|
Northern Rocky Mountains | porphyry copper | Part of a continental margin arc that formed along the western margin of North America |
Pacific Margin | porphyry copper | Cretaceous through middle Tertiary volcanic and intrusive rocks representing a series of continental- and island-arc systems accreted and superimposed onto the paleomargin of northeast Asia. |