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 | |
Bettles C-1 | 1:63,360 Alaska quadrangle |
Bettles | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
South Fork Koyukuk River | hydrologic unit |
190406 | hydrologic accounting unit |
Southwest Alaska | hydrologic subregion |
Alaska | hydrologic region |
ID | Data type | Description |
---|---|---|
Northeast Alaska '72 | M-D | Northeast Alaska '72 27841 line km with spacing 1.90 km over parts of AK |
Bettles | M/R-D | Bettles 1810 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-EC13 | Porphyry Cu, BC-Ak type | |
AK-EC14 | Plutonic porphyry Au | |
AK-EC06 | Low-sulfide Au-quartz veins | |
AK-EC02 | Cyprus massive sulfide | |
AK-EC18 | Polymetallic vein | |
AK-EC15 | Placer Au | |
AK-EC01 | Besshi massive sulfide |
Domain | Crust type | Region |
---|---|---|
Ruby | Passive margin | Alaska |
Sample ID | Date collected | Sample type |
---|---|---|
7036730 | 1978-07-01 | Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves. |
7037167 | Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves. | |
7037170 | Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves. | |
7037171 | 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 |
---|---|---|
3038599 | 1978-07-01 | Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid. |
Site name | Development | Commodities |
---|---|---|
Bonanza | Prospect | W |
Site | Status | Commodities |
---|---|---|
Bonanza, Beef | Probably inactive | Mo;Pb;W;Zn |
Sample ID | Sample source | Sample notes |
---|---|---|
ACC578 | stream/river | stream |
ACC579 | stream/river | stream |
ACC580 | stream/river | stream |
ACC581 | stream/river | stream |
ACC582 | 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 |
Chukotka | porphyry copper | Early to Late Cretaceous volcanic and intrusive rocks composing island-arc, continental-arc, and collisional magmatic belts associated with the Chukotka microcontinent. |
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. |