Counties, states, countries, continents, or oceans | |
Map quadrangles, from USGS or Canadian NTS | |
Bradfield Canal B-5 | 1:63,360 Alaska quadrangle |
Bradfield Canal | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Southeast Mainland | hydrologic unit |
190101 | hydrologic accounting unit |
Arctic Slope | hydrologic subregion |
Alaska | hydrologic region |
Areas administered by US Federal agencies |
Map symbol | Lithology | Unit name |
---|---|---|
Pzgn | Metamorphic | Roof pendants of the Coast plutonic complex of Brew and Morrell (1979b) |
ID | Data type | Description |
---|---|---|
Petersburg '78 | M-D | Petersburg '78 13920 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-SE13 | Polymetallic vein | |
AK-SE14 | Zn-Pb skarn |
Domain | Crust type | Region |
---|---|---|
Taku | Passive margin | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
CDH040 | rock | igneous quartz diorite |
CDH055 | rock | metamorphic gneiss |
CDN178 | sediment | |
CDN201 | sediment | |
CDN224 | sediment | |
CDN546 | rock | metamorphic amphibolite |
Sample ID | Rock type | Rock name |
---|---|---|
CDH040 | unspecified | |
CDH055 | unspecified | |
CDH447 | unspecified | |
CDH505 | unspecified | |
CDN546 | unspecified | |
M198411 | metamorphic | granofels |
Site name | Development | Commodities |
---|---|---|
Waco | Occurrence | AG AU CU |
White River | Prospect | AU CU AG |
Site | Status | Commodities |
---|---|---|
Waco | Undetermined | Ag;Au;Cu |
Sample ID | Sample source | Sample notes |
---|---|---|
CDN178 | stream/river | stream |
CDN201 | stream/river | stream |
CDN224 | 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. |