Counties, states, countries, continents, or oceans | |
Valdez-Cordova | Census area |
Alaska | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
McCarthy A-7 | 1:63,360 Alaska quadrangle |
McCarthy | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Chitina River | hydrologic unit |
190201 | hydrologic accounting unit |
Northwest Alaska | hydrologic subregion |
Alaska | hydrologic region |
Areas administered by US Federal agencies |
ID | Data type | Description |
---|---|---|
McCarthy | M-D | McCarthy 11748 line km with spacing 1.60 km over parts of AK |
Mc Carthy | M/R-D | Mc Carthy 1971 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SC25 | Placer Au | |
AK-SC12 | Low-sulfide Au-quartz veins, Chugach type |
Domain | Crust type | Region |
---|---|---|
Chugach | Accretionary wedge | Alaska |
Site name | Development | Commodities |
---|---|---|
Lucky Girl | Past Producer | AU |
Bremner Mining Co. | Past Producer | AU |
Site | Status | Commodities |
---|---|---|
Lucky Girl; Bremner Mining Compa... | Inactive | Au |
Sample ID | Sample source | Sample notes |
---|---|---|
C100190 | stream/river | stream deposit; gully below mill, Lucky Girl Mine, Bre; stream |
C100196 | stream/river | stream deposit; dry gully w/ mill tails, below mill, L; stream |
C100480 | mine/mill tailings | mill tailings composite from base of mill, Lucky Girl Mine, Bremner; also submitted in contract job GA30; mill product |
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 |
Western Alaska Range | porphyry copper | Cretaceous porphyry prospects along the Kahiltna Basin-Peninsula terrane boundary |
Eastern Alaska Range and Wrangell Mountains | porphyry copper | Cretaceous (115-105Ma) deposits and prospects along the Nutzotin Basin-Wrangellia terrane boundary; south of the Denali Fault |
Skolai Arc - Eastern Alaska | porphyry copper | Late Paleozoic Skolai Arc of the Wrangellia terrane; south 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. |