Counties, states, countries, continents, or oceans | |
Map quadrangles, from USGS or Canadian NTS | |
Petersburg C-4 | 1:63,360 Alaska quadrangle |
Petersburg | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Kuiu-Kupreanof-Mitkof-Etolin- | hydrologic unit |
190102 | 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 |
---|---|---|
Keg | Igneous - Plutonic | Granodiorite and other plutonic rocks |
Trhgs | Sedimentary | Hyd Group sedimentary rocks, undivided |
Trhgv | Sedimentary | Hyd Group igneous rocks, undivided |
Trhgv | Sedimentary | Hyd Group igneous rocks, undivided |
w | Water |
ID | Data type | Description |
---|---|---|
Petersburg '78 | M-D | Petersburg '78 13920 line km with spacing 1.60 km over parts of AK |
Petersburg | M/R-D | Petersburg 1472 line km with spacing 9.60 km over parts of AK |
Stikine - Duncan Canal | M/EM-D | Stikine - Duncan Canal 5489 line km with spacing 0.40 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SE05 | Sierran Kuroko mass. sulf. | |
AK-SE03 | Low-sulfide Au-quartz veins |
Domain | Crust type | Region |
---|---|---|
Alexander | Oceanic arc | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
CEG067 | rock | metamorphic phyllite-slate |
CEG068 | rock | metamorphic greenstone |
CEG069 | rock | igneous felsic |
CEG070 | rock | igneous felsic |
CEG071 | rock | igneous mafic |
CEG072 | rock | igneous felsic |
CEG073 | rock | igneous felsic |
CEG074 | rock | metamorphic phyllite-slate |
CEG075 | rock | metamorphic schist |
D233341 | rock | igneous rhyolite |
D233342 | rock | igneous unspecified |
D233343 | rock | igneous greenstone |
D233344 | rock | igneous rhyolite |
D233345 | rock | igneous unspecified |
D233346 | rock | metamorphic phyllite |
D233347 | rock | metamorphic schist |
D542381 | rock | metamorphic phyllite |
M144912 | rock | metamorphic greenstone |
Sample ID | Date collected | Sample type |
---|---|---|
7001828 | 1979-09-10 | Wet natural-pond (or lake in Alaska) sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves. |
Sample ID | Rock type | Rock name |
---|---|---|
CCZ952 | igneous | mafic |
CEG067 | metamorphic | phyllite-slate |
CEG068 | igneous | mafic |
CEG069 | igneous | felsic |
CEG070 | igneous | unspecified |
CEG071 | igneous | mafic |
CEG072 | igneous | felsic |
CEG073 | igneous | unspecified |
CEG074 | metamorphic | phyllite-slate |
CEG075 | metamorphic | schist |
D233341 | igneous | rhyolite |
D233342 | igneous | unspecified |
D233343 | igneous | greenstone |
D233344 | igneous | rhyolite |
D233345 | igneous | unspecified |
D233346 | metamorphic | phyllite |
D233347 | metamorphic | schist |
D542381 | metamorphic | phyllite |
M144912 | metamorphic | gneiss |
Site | Status | Commodities |
---|---|---|
Independence | Active | Au |
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. |