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 | |
Ketchikan A-6 | 1:63,360 Alaska quadrangle |
Ketchikan | 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 | |
Tongass National Forest | National Forest |
National Forest FS | Type of land area |
FS | Federal land areas administered by FS |
Map symbol | Lithology | Unit name |
---|---|---|
CPxwg | Metamorphic | Wales Group, undivided |
DOgi | Igneous - Plutonic | Syenite, trondhjemite, and granite |
Trhgs | Sedimentary | Hyd Group sedimentary rocks, undivided |
Trhgs | Sedimentary | Hyd Group sedimentary rocks, undivided |
Trhgs | Sedimentary | Hyd Group sedimentary rocks, undivided |
Trhgv | Sedimentary | Hyd Group igneous rocks, undivided |
Trhgv | Sedimentary | Hyd Group igneous rocks, undivided |
Trhgv | Sedimentary | Hyd Group igneous rocks, undivided |
ID | Data type | Description |
---|---|---|
Ketchikan '76 | M-Dz | Ketchikan '76 8529 line km with spacing 1.60 km over parts of AK |
Ketchikan | M/R-D | Ketchikan 1609 line km with spacing 9.60 km over parts of AK |
Ketchikan 1999 | M/EM-D | Ketchikan 1999 4751 line km with spacing 0.40 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SE05 | Sierran Kuroko mass. sulf. |
Domain | Crust type | Region |
---|---|---|
Alexander | Oceanic arc | Alaska |
Site name | Development | Commodities |
---|---|---|
Grotto | Prospect | CU |
Hobo | Prospect | CU |
War Eagle | Past Producer | AU CU |
Big Joe | Prospect | CU |
Buck | Prospect | AU CU |
Doe | Prospect | CU |
Damon | Prospect | CU |
Plutyas, Phityas | Prospect | CU |
Seal Cove | Prospect | CU AU AG ZN |
Zip 1-32, 39-46, 48-58 | Prospect | CU PB AG |
Buck | Unknown | AU CU |
Site | Status | Commodities |
---|---|---|
Grotto | Undetermined | Cu |
Hobo | Undetermined | Cu |
War Eagle; Patterson and Co. | Undetermined | Au |
Plutyas, Phityas | Undetermined | Cu |
Big Joe | Undetermined | Cu |
Buck; North Paula | Undetermined | Au;Cu |
Doe; Trio | Undetermined | Cu |
Damon | Undetermined | Cu |
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. |