Counties, states, countries, continents, or oceans | |
Map quadrangles, from USGS or Canadian NTS | |
Dixon Entrance D-1 | 1:63,360 Alaska quadrangle |
Dixon Entrance | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Prince of Wales | hydrologic unit |
190101 | hydrologic accounting unit |
Arctic Slope | hydrologic subregion |
Alaska | hydrologic region |
Areas administered by US Federal agencies |
Map symbol | Lithology | Unit name |
---|---|---|
DOgi | Igneous - Plutonic | Syenite, trondhjemite, and granite |
DOgi | Igneous - Plutonic | Syenite, trondhjemite, and granite |
DSum | Igneous - Plutonic | Older ultramafic rocks of southeast Alaska |
Ogi | Igneous - Plutonic | Granodiorite and related rocks |
w | Water |
ID | Data type | Description |
---|---|---|
Craig 1982 | M-D | Craig 1982 9221 line km with spacing 0.80 km over parts of AK |
Southern Craig | M-D | Southern Craig 563 line km with spacing 1.60 km over parts of AK |
Dixon Entrance | M/R-D | Dixon Entrance 265 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SE07 | Porphyry Cu | |
AK-SE19 | Porphyry Cu, skarn related | |
AK-SE20 | Porphyry Cu-Mo | |
AK-SE13 | Polymetallic vein |
Domain | Crust type | Region |
---|---|---|
Alexander | Oceanic arc | Alaska |
Site name | Development | Commodities |
---|---|---|
Veta | Prospect | CU AU AG |
Mallard | Prospect | FE |
Decker & West | Prospect | CU |
Mallard Bay Occurrence | Occurrence | FE |
Site | Status | Commodities |
---|---|---|
Veta | Probably inactive | Ag;Au;Cu |
Unnamed (south of Mallard Bay) | Inactive | Fe |
Sample ID | Sample source | Sample notes |
---|---|---|
CEW658 | stream/river | stream |
Sample ID | Sample source | Sample notes |
---|---|---|
CHE332 | stream/river | stream |
Tract name | Deposit type | Geology |
---|---|---|
Late Continental Arc | porphyry copper | Porphyry Cu systems associated with predominantly calc-alkalic igneous rocks of post-accretionary continental magmatic arcs (Oligocene-Pliocene) |
Intermontane Island-Arc | porphyry copper | Porphyry Cu systems associated with pre-accretionary Triassic and Jurassic calc-alkalic island arcs that formed offshore of western North America |
Intermontane Island-Arc Cu-Au | porphyry copper | Triassic and Jurassic alkalic igneous rocks of accreted island arcs that formed offshore of western North America |
Insular Mixed Island- and Continental Arc | porphyry copper | Calc-alkalic igneous rocks of accreted Jurassic island-arc terranes |
Cordilleran Continental Arc | porphyry copper | Porphyry Cu systems associated with predominantly calc-alkalic igneous rocks of post-accretionary continental magmatic arcs (Jurassic-Eocene) |
Southeast Alaska Tertiary | porphyry copper | Tertiary subduction and postsubduction calc-alkalic plutons of southeast Alaska |
Alaska Peninsula and Aleutian Islands | porphyry copper | Tertiary felsic to intermediate composition intrusions of the Alaska Peninsula and Aleutian Islands |
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. |