Counties, states, countries, continents, or oceans | |
Map quadrangles, from USGS or Canadian NTS | |
Sitka D-1 | 1:63,360 Alaska quadrangle |
Sitka | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Admiralty Island | hydrologic unit |
190102 | hydrologic accounting unit |
Arctic Slope | hydrologic subregion |
Alaska | hydrologic region |
Areas administered by US Federal agencies |
Map symbol | Lithology | Unit name |
---|---|---|
KJgn | Sedimentary | Gravina-Nuzotin unit |
PDcf | Sedimentary | Cannery Formation and Porcupine slate of Redman and others (1985), undivided |
Trhg | Sedimentary | Hyd Group, undivided |
Trhgv | Sedimentary | Hyd Group igneous rocks, undivided |
Trhgv | Sedimentary | Hyd Group igneous rocks, undivided |
w | Water |
ID | Data type | Description |
---|---|---|
Sitka | M/R-D | Sitka 579 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SE05 | Sierran Kuroko mass. sulf. | |
AK-SE10 | Basaltic Cu |
Domain | Crust type | Region |
---|---|---|
Alexander | Oceanic arc | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
C105343 | rock | metamorphic metabasalt |
C105344 | rock | metamorphic metabasalt |
C105381 | rock | metamorphic metabasalt |
C105382 | rock | metamorphic unspecified |
C126527 | rock | igneous greenstone |
D385800 | rock | metamorphic greenstone |
D385801 | rock | igneous unspecified |
D385807 | rock | igneous basalt |
D563545 | rock | igneous greenstone |
D563602 | rock | sedimentary argillite |
D563603 | rock | sedimentary argillite |
D563605 | rock | igneous greenstone |
M199960 | rock | metamorphic greenstone |
M199972 | rock | igneous basalt |
Sample ID | Date collected | Sample type |
---|---|---|
7020984 | 1979-09-23 | 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 |
---|---|---|
3022615 | 1979-09-23 | 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 |
---|---|---|
C105343 | metamorphic | metabasalt |
C105344 | metamorphic | metabasalt |
C105382 | metamorphic | unspecified |
C126527 | igneous | greenstone |
D385800 | igneous | unspecified |
D385801 | igneous | unspecified |
D385807 | igneous | unspecified |
D563545 | igneous | greenstone |
D563602 | sedimentary | argillite |
D563603 | sedimentary | argillite |
D563605 | igneous | greenstone |
M199960 | metamorphic | greenstone |
M199972 | igneous | basalt |
Site name | Development | Commodities |
---|---|---|
Copper Chief | Prospect | CU |
Pack Creek | Prospect | CU |
Site | Status | Commodities |
---|---|---|
Copper Chief | Inactive | Au;Cu |
Unnamed (north of lower Pack Cre... | Inactive | 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. |