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 | |
Nabesna B-5 | 1:63,360 Alaska quadrangle |
Nabesna | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Nabesna-Chisana Rivers | hydrologic unit |
190405 | hydrologic accounting unit |
Southwest Alaska | hydrologic subregion |
Alaska | hydrologic region |
Areas administered by US Federal agencies | |
Wrangell-Saint Elias National Preserve | National Preserve |
National Preserve NPS | Type of land area |
NPS | Federal land areas administered by NPS |
Map symbol | Lithology | Unit name |
---|---|---|
Keg | Igneous - Plutonic | Granodiorite and other plutonic rocks |
KJgn | Sedimentary | Gravina-Nuzotin unit |
Qs | Unconsolidated | Unconsolidated surficial deposits, undivided |
Trcnk | Sedimentary | Chitistone and Nizina Limestones and Kamishak Formation |
Twv | Igneous - Volcanic | Wrangell Lava |
ID | Data type | Description |
---|---|---|
East Alaska Range - Nabesna | M-Dz | East Alaska Range - Nabesna 43452 line km with spacing 1.20 km over parts of AK |
Nabesna | M/R-D | Nabesna 2204 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SC05 | Cu-Ag quartz veins | |
AK-SC16 | Kuroko massive sulfide | |
AK-SC23 | Porphyry Cu, BC-Ak type | |
AK-SC33 | Cu (Au) skarn | |
AK-SC31 | Cu (Au) skarn | |
AK-SC21 | Porphyry Cu, BC-Ak type | |
AK-SC28 | Polymetallic vein | |
AK-SC32 | Cu (Au) skarn | |
AK-SC01 | Basaltic Cu/Kennecott Cu | |
AK-SC29 | Polymetallic vein | |
AK-SC18 | Synorogenic-synvolcanic Ni-Cu | |
AK-SC09 | Low-sulfide Au-quartz veins | |
AK-SC22 | Porphyry Cu, BC-Ak type |
Domain | Crust type | Region |
---|---|---|
Wrangellia | Oceanic arc | Alaska |
Sample ID | Rock type | Rock name |
---|---|---|
AGG057 | igneous | diorite |
D571149 | unspecified | |
D571150 | unspecified | |
D571151 | unspecified | |
D571152 | unspecified | |
D571153 | unspecified | |
D571163 | unspecified |
Site name | Development | Commodities |
---|---|---|
Nabesna | Past Producer | AU AG CU PB FE ZN |
Nabesna | Past Producer | AU AG CU PB FE ZN |
Nabesna Mine | Past Producer | AU CU PB AG ZN |
Golden Eagle | Prospect | CU AU |
Nabesna Mine | Past Producer | AU AG CU PB ZN SB FE AS |
Site | Status | Commodities |
---|---|---|
Nabesna | Inactive | Au |
Sample ID | Sample source | Sample notes |
---|---|---|
C100485 | mine/mill tailings | Nabesna mill tailings core sample, bright orange tailings; also submitted in contract job GA30; mill product |
C100486 | mine/mill tailings | Nabesna mill tailings core sample, gray pyrite tailings; also submitted in contract job GA30; mill product |
F016831 | unknown | sediment from standing pool of snowmelt on Nabesna mill tailings |
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. |