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 | |
Gulkana D-1 | 1:63,360 Alaska quadrangle |
Gulkana | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Upper Copper River | hydrologic unit |
190201 | hydrologic accounting unit |
Northwest Alaska | hydrologic subregion |
Alaska | hydrologic region |
Map symbol | Lithology | Unit name |
---|---|---|
PIPgi | Igneous - Plutonic | Granodiorite, syenite, and other granitic rocks |
PIPgi | Igneous - Plutonic | Granodiorite, syenite, and other granitic rocks |
PIPt | Sedimentary | Slana Spur and Station Creek Formations and Tetelna Volcanics |
ID | Data type | Description |
---|---|---|
East Alaska Range | M-Dz | East Alaska Range 43452 line km with spacing 1.20 km over parts of AK |
East Alaska Range | M-Dz | East Alaska Range 43452 line km with spacing 1.20 km over parts of AK |
East Alaska Range - Nabesna | M-Dz | East Alaska Range - Nabesna 43452 line km with spacing 1.20 km over parts of AK |
Slate Cr-Slana River | M/EM-D | Slate Cr-Slana River -9999 line km with spacing 0.40 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-SC21 | Porphyry Cu, BC-Ak type | |
AK-SC28 | Polymetallic vein | |
AK-SC25 | Placer Au | |
AK-SC32 | Cu (Au) skarn | |
AK-SC01 | Basaltic Cu/Kennecott Cu | |
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 |
Lab ID | Sample medium | Description |
---|---|---|
ACH677 | rock | igneous felsic |
ACH678 | rock | igneous intermediate |
ACH679 | rock | igneous intermediate |
ACH680 | rock | metamorphic skarn |
ACH681 | rock | igneous intermediate |
CDP615 | rock | metamorphic unspecified |
CDP616 | rock | metamorphic metamudstone |
CDP617 | rock | igneous granodiorite |
CDP618 | rock | metamorphic schist |
CDP619 | rock | metamorphic amphibolite |
CDP626 | rock | |
CGB041 | rock | metamorphic metavolcanic |
CGB071 | rock | igneous granodiorite |
Sample ID | Rock type | Rock name |
---|---|---|
ACH677 | igneous | felsic |
ACH678 | igneous | intermediate |
ACH679 | igneous | intermediate |
ACH680 | metamorphic | skarn |
ACH681 | igneous | intermediate |
CDP615 | metamorphic | unspecified |
CDP616 | metamorphic | metamudstone |
CDP617 | igneous | granodiorite |
CDP618 | metamorphic | schist |
CDP619 | metamorphic | amphibolite |
CDP626 | unspecified | |
CGB041 | metamorphic | unspecified |
CGB071 | igneous | unspecified |
Site name | Development | Commodities |
---|---|---|
Unnamed (in headwaters of Grubstake Creek) | Prospect | AU CU FE PB ZN |
Site | Status | Commodities |
---|---|---|
Grubstake | Active | Au;Cu |
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. |