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 |
Map symbol | Lithology | Unit name |
---|---|---|
CPxwg | Metamorphic | Wales Group, undivided |
DOgi | Igneous - Plutonic | Syenite, trondhjemite, and granite |
Trhgv | Sedimentary | Hyd Group igneous rocks, undivided |
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 |
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 |
Sample ID | Date collected | Sample type |
---|---|---|
7022071 | 1979-09-25 | Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves. |
Sample ID | Date collected | Sample type |
---|---|---|
3023704 | 1979-09-25 | Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid. |
Sample ID | Rock type | Rock name |
---|---|---|
BDB686 | unspecified | |
BDB687 | igneous | diorite |
BDB693 | unspecified | |
BDB694 | igneous | tuff |
BDB695 | unspecified | |
BDB707 | unspecified |
Site name | Development | Commodities |
---|---|---|
Dall | Prospect | AG AU CU BA |
Concord group | Prospect | AG AU CU ZN BA |
Grenadier | Prospect | CU |
Julian 1-3 | Prospect | CU |
Gloria M. No. 1 | Prospect | U |
Thin 1-3 | Prospect | CU PB AG |
Site | Status | Commodities |
---|---|---|
Concord group; Apex group; Conco... | Undetermined | Ag;Au;Cu;Zn |
Grenadier | 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. |