Counties, states, countries, continents, or oceans | |
Yukon-Koyukuk | Census area |
Alaska | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Iditarod B-2 | 1:63,360 Alaska quadrangle |
Iditarod | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Takotna River | hydrologic unit |
190304 | hydrologic accounting unit |
Yukon | hydrologic subregion |
Alaska | hydrologic region |
ID | Data type | Description |
---|---|---|
West-Central Alaska | M-D | West-Central Alaska 21360 line km with spacing 9.60 km over parts of AK |
Iditarod | M/R-D | Iditarod 2301 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SW05 | Peraluminous granite porphyry gold | |
AK-SW14 | Placer Au | |
AK-SW13 | Plutonic porphyry Au | |
AK-SW16 | Polymetallic vein |
Domain | Crust type | Region |
---|---|---|
Farewell buried | Back-arc basin | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
CGR085 | rock | metamorphic hornfels |
CGR107 | rock | sedimentary sandstone |
CGR204 | rock | sedimentary sandstone |
CGR372 | rock | igneous rhyolite |
CGR420 | rock | |
CGR421 | rock | metamorphic hornfels |
CGR424 | rock | |
CGR425 | rock | |
CGY552 | rock | |
CHD053 | rock | sedimentary sandstone |
CHD054 | rock | sedimentary sandstone |
CHD111 | rock | |
CHD137 | sediment |
Sample ID | Rock type | Rock name |
---|---|---|
CGR085 | metamorphic | unspecified |
CGR107 | sedimentary | unspecified |
CGR204 | sedimentary | unspecified |
CGR372 | igneous | unspecified |
CGR420 | unspecified | |
CGR421 | sedimentary | unspecified |
CGY552 | unspecified | |
CHD053 | sedimentary | unspecified |
CHD054 | sedimentary | unspecified |
CHD111 | unspecified |
Site | Status | Commodities |
---|---|---|
Unnamed (west of the head of Lit... | Inactive | Ag;Sn;Zn |
Sample ID | Sample source | Sample notes |
---|---|---|
CHD137 | stream/river | stream |
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. |