Counties, states, countries, continents, or oceans | |
Juneau | Borough |
Alaska | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Juneau D-4 | 1:63,360 Alaska quadrangle |
Juneau | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Lynn Canal | hydrologic unit |
190103 | 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 |
---|---|---|
g | Unconsolidated | Glaciers |
Kmgr | Igneous - Plutonic | Granitic rocks of central and southeast Alaska |
MzPzsv | Metamorphic | Metavolcanic rocks west of the Coast plutonic complex of Brew and Morrell (1979b) |
ID | Data type | Description |
---|---|---|
Juneau '82 | M-D | Juneau '82 6598 line km with spacing 1.60 km over parts of AK |
Juneau | M/R-D | Juneau 1319 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SE03 | Low-sulfide Au-quartz veins | |
AK-SE05 | Sierran Kuroko mass. sulf. |
Domain | Crust type | Region |
---|---|---|
Taku | Passive margin | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
CBR194 | rock | metamorphic unspecified |
CFL827 | rock | igneous felsic |
CFL828 | rock | metamorphic hornfels |
CFL829 | rock | igneous quartz diorite |
CFL830 | rock | |
CFL831 | rock | |
CFV447 | rock | metamorphic schist |
CFV448 | rock | igneous mafic |
M131751 | rock | igneous quartz diorite |
M131761 | rock | igneous quartz diorite |
M167755 | rock | igneous granite |
M172402 | rock | igneous felsic |
M172403 | rock | metamorphic hornfels |
M172404 | rock | igneous quartz diorite |
Sample ID | Rock type | Rock name |
---|---|---|
CFL827 | igneous | felsic |
CFL828 | igneous | felsic |
CFL829 | igneous | felsic |
CFL830 | unspecified | |
CFL831 | unspecified | |
CFV447 | metamorphic | schist |
CFV448 | igneous | mafic |
M131761 | igneous | quartz diorite |
M167755 | igneous | granite |
M172402 | unspecified | |
M172403 | metamorphic | hornfels |
M172404 | igneous | quartz diorite |
Site name | Development | Commodities |
---|---|---|
Johnson Prospect | Occurrence | AU |
Johnson | Past Producer | AU |
Whistler | Prospect | AU |
Site | Status | Commodities |
---|---|---|
Johnson; Northern Lights | 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. |