Counties, states, countries, continents, or oceans | |
Map quadrangles, from USGS or Canadian NTS | |
Mt Fairweather C-1 | 1:63,360 Alaska quadrangle |
Mt Fairweather | 1:250,000 Alaska quadrangle |
Areas administered by US Federal agencies |
ID | Data type | Description |
---|---|---|
Glacier Bay East | M-D | Glacier Bay East 6195 line km with spacing 1.60 km over parts of AK |
Mt Fairweather | M/R-D | Mt Fairweather 764 line km with spacing 9.60 km over parts of AK |
Domain | Crust type | Region |
---|---|---|
Alexander | Oceanic arc | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
D123230 | sediment | |
D123289 | rock | metamorphic marble |
D123290 | rock | igneous felsic |
D123291 | rock | igneous felsic |
D123292 | rock | igneous felsic |
D123486 | sediment |
Sample ID | Rock type | Rock name |
---|---|---|
D123289 | metamorphic | marble |
D123290 | igneous | felsic |
D123291 | igneous | felsic |
D123292 | igneous | felsic |
Site name | Development | Commodities |
---|---|---|
South Marble Island | Prospect | CU MBL |
Unnamed (South Marble Island) | Prospect | CU FE TI |
Site | Status | Commodities |
---|---|---|
Unnamed (South Marble Island) | Probably inactive | Cu;Fe;Ti |
Sample ID | Sample source | Sample notes |
---|---|---|
D123230 | stream/river | silt and clay; stream |
D123486 | stream/river | silt & clay; 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. |