Counties, states, countries, continents, or oceans | |
Beaverhead | county |
Montana | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Cattle Gulch | quadrangle 1:24,000 scale |
Butte South | quadrangle 1:100,000 scale |
Dillon | quadrangle 1:250,000 scale |
Watershed boundaries (USGS hydrologic units) | |
Big Hole | hydrologic unit |
Missouri Headwaters | hydrologic accounting unit |
Missouri Headwaters | hydrologic subregion |
Missouri | hydrologic region |
Areas administered by US Federal agencies | |
Beaverhead National Forest | National Forest |
National Forest FS | Type of land area |
FS | Federal land areas administered by FS |
Unit | State | Lithology |
---|---|---|
Kootenai through Dinwoody Formation: Kootenai, Morrison, Thaynes, Woodside, and Dinwoody Formations | MT | Cretaceous through Triassic |
Snowcrest Range and Madison Groups; or Snowcrest Range and Tendoy Groups; or Surret Canyon through McGowan Creek Formation: Surrett Canyon, South Creek, Scott Peak, Middle Canyon, and McGowan Creek Formations | MT | Pennsylvanian and Mississippian |
Phosphoria and Quadrant Formations | MT | Permian and Pennsylvanian |
ID | Data type | Description |
---|---|---|
Boulder Batholith | M-Dz | Boulder Batholith 4972 line km with spacing 3.20 km over parts of MT |
Dillon (Pioneer-Beaver.) | M-D | Dillon (Pioneer-Beaver.) 5230 line km with spacing 0.80 km over parts of MT-ID |
Dillon | M/R-D | Dillon 4359 line km with spacing 4.80 km over parts of MT-ID |
Tract | Deposit Type | Mineralization age |
---|---|---|
NR10 | Porphyry Cu (North America) | Cretaceous - Eocene |
NR07 | Skarn Au | Mesozoic - Tertiary |
NR04 | Skarn Zn-Pb | Mesozoic - Tertiary |
NR13 | Polymetallic replacement | Mesozoic - Tertiary |
Domain | Crust type | Region |
---|---|---|
Great Falls | Intracratonic mobile belt | Northern Rocky Mountains |
Sample ID | Date collected | Sample type |
---|---|---|
5025520 | 1976-08-20 | Dry stream sediment sample dried at less than or equal to 100øC (if necessary) and sieved to -100 mesh through stainless steel sieves. |
Sample ID | Rock type | Rock name |
---|---|---|
EEM496 | sedimentary | limestone/dolomite |
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. |
Feature ID | Feature type | Feature name |
---|---|---|
Prospect Pit | point | |
Prospect Pit | point | |
Prospect Pit | point |