Map quadrangles, from USGS or Canadian NTS | |
Bradfield Canal A-1 | 1:63,360 Alaska quadrangle |
Bradfield Canal | 1:250,000 Alaska quadrangle |
Counties, states, countries, continents, or oceans | |
British Columbia | province |
Canada | country |
North America | continent |
Land | continent |
Map symbol | Lithology | Unit name |
---|---|---|
Canada | Canadian areas within quadrangles, southeast Alaska | |
Tcp | Igneous - Plutonic | Younger phase, Coast plutonic complex of Brew and Morrell (1979b) |
Trqd | Igneous - Plutonic | Quartz diorite and granodiorite |
ID | Data type | Description |
---|---|---|
SE Alaska (Granite Fiords) | M-Dz | SE Alaska (Granite Fiords) 2735 line km with spacing 1.60 km over parts of AK |
Bradfield Canal | M/R-D | Bradfield Canal 716 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SE05 | Sierran Kuroko mass. sulf. | |
AK-SE07 | Porphyry Cu | |
AK-SE19 | Porphyry Cu, skarn related | |
AK-SE20 | Porphyry Cu-Mo | |
AK-SE13 | Polymetallic vein |
Domain | Crust type | Region |
---|---|---|
Taku | Passive margin | Alaska |
Sample ID | Rock type | Rock name |
---|---|---|
ACI257 | igneous | porphyry |
Site name | Development | Commodities |
---|---|---|
Bartholf | Occurrence | CU PB BA |
Bartholf | Prospect | CU PB |
Site | Status | Commodities |
---|---|---|
Bartholf | Inactive | Cu;Pb |
Sample ID | Sample source | Sample notes |
---|---|---|
ACI864 | 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. |