Counties, states, countries, continents, or oceans | |
Ketchikan Gateway | Borough |
Alaska | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Prince Rupert D-5 | 1:63,360 Alaska quadrangle |
Prince Rupert | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Ketchikan | 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 |
Kum | Igneous - Plutonic | Ultramafic rocks of southeast Alaska |
Trhgv | Sedimentary | Hyd Group igneous rocks, undivided |
w | Water |
ID | Data type | Description |
---|---|---|
Ketchikan '76 | M-Dz | Ketchikan '76 8529 line km with spacing 1.60 km over parts of AK |
Prince Rupert | M/R-D | Prince Rupert 185 line km with spacing 9.60 km over parts of AK |
Domain | Crust type | Region |
---|---|---|
Alexander | Oceanic arc | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
W174768 | rock | igneous gabbro |
Sample ID | Rock type | Rock name |
---|---|---|
W174768 | igneous | gabbro |
Site name | Development | Commodities |
---|---|---|
Stebbins | Prospect | FE |
Percy Prospect | Occurrence | FE |
Percy Island Ultramafic | Prospect | CR FE NI |
Site | Status | Commodities |
---|---|---|
Stebbins; and unnamed (on Percy ... | Inactive | Fe |
Deposit name | Deposit type | Location |
---|---|---|
Percy Island Ultramafic | Occurrence | Alaska, United States |
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. |