Counties, states, countries, continents, or oceans | |
Bethel | Census area |
Alaska | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Russian Mission A-3 | 1:63,360 Alaska quadrangle |
Russian Mission | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Kuskokwim Delta | hydrologic unit |
190305 | hydrologic accounting unit |
Yukon | hydrologic subregion |
Alaska | hydrologic region |
Map symbol | Lithology | Unit name |
---|---|---|
Kmgr | Igneous - Plutonic | Granitic rocks of central and southeast Alaska |
ID | Data type | Description |
---|---|---|
Bethel '88, Phillips comp. 1/2 km grid | M-Dg | Bethel '88, Phillips comp. 1/2 km grid -9999 line km with spacing 0.40 km over parts of AK |
Bethel | M-D | Bethel 12391 line km with spacing 9.60 km over parts of AK |
Nyac Mining District | M/EM-D | Nyac Mining District 1366 line km with spacing 0.40 km over parts of AK |
Russian Mission | M/R-D | Russian Mission 2220 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SW20 | Epithermal vein, hot spring Au | |
AK-SW14 | Placer Au | |
AK-SW13 | Plutonic porphyry Au | |
AK-SW16 | Polymetallic vein |
Domain | Crust type | Region |
---|---|---|
Nyac | Oceanic arc | Alaska |
Site | Status | Commodities |
---|---|---|
Blueberry | Active | Cu |
Tract name | Deposit type | Geology |
---|---|---|
Yukon-Tanana Upland | porphyry copper | Kluane Arc and Tertiary Kuskokwim Mountains volcanic-plutonic belt (continuation of Canadian Cordilleran continental arc); north of the Denali Fault |
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. |