Counties, states, countries, continents, or oceans | |
Northwest Arctic | Borough |
Alaska | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Noatak C-3 | 1:63,360 Alaska quadrangle |
Noatak | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Wulik-Kivalina Rivers | hydrologic unit |
190504 | hydrologic accounting unit |
South Central Alaska | hydrologic subregion |
Alaska | hydrologic region |
Areas administered by US Federal agencies |
ID | Data type | Description |
---|---|---|
Western Brooks Range | M-Dz | Western Brooks Range 1802 line km with spacing 10.00 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-BR23 | Sedex Zn-Pb | |
AK-BR21 | Sediment-hosted Cu | |
AK-BR17 | Zn-Pb-Ag veins | |
AK-BR20 | Sandstone hosted Pb-Zn | |
AK-BR13 | Placer Au |
Domain | Crust type | Region |
---|---|---|
Brooks Range | Passive margin | Alaska |
Sample ID | Date collected | Sample type |
---|---|---|
7060547 | 1976-08-13 | Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves. |
7060548 | 1976-08-13 | 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 |
---|---|---|
3060020 | 1976-08-13 | Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid. |
Site | Status | Commodities |
---|---|---|
Unnamed (on Rabbit Creek) | Inactive | Co;Cu |
Sample ID | Sample source | Sample notes |
---|---|---|
CBT009 | stream/river | stream |
CBT010 | stream/river | stream |
CBT011 | stream/river | stream |
Tract name | Deposit type | Geology |
---|---|---|
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. |