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 B-2 | 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 |
Map symbol | Lithology | Unit name |
---|---|---|
MzPzss | Metamorphic | Metasedimentary and minor metavolcanic rocks along the west side of the Coast plutonic complex of Brew and Morrell (1979b) |
MzPzss | Metamorphic | Metasedimentary and minor metavolcanic rocks along the west side 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-SE05 | Sierran Kuroko mass. sulf. | |
AK-SE03 | Low-sulfide Au-quartz veins |
Domain | Crust type | Region |
---|---|---|
Taku | Passive margin | Alaska |
Deposit name | Deposit type | Commodity |
---|---|---|
Alaska - Juneau (A.J., Perseverance) | Hydrothermal | gold |
Lab ID | Sample medium | Description |
---|---|---|
AGB293 | sediment | |
CFT234 | rock | metamorphic schist |
CFT235 | rock | metamorphic quartzite |
CFT249 | sediment | |
CFX865 | rock | metamorphic unspecified |
CGC005 | rock | |
CGC121 | rock | metamorphic phyllite-slate |
CGC122 | rock | metamorphic phyllite-slate |
CGC125 | rock | metamorphic slate |
CGC136 | rock | metamorphic greenstone |
CGC137 | rock | sedimentary chert |
CGC138 | rock | metamorphic unspecified |
CGC139 | rock | metamorphic unspecified |
CGC140 | rock | metamorphic phyllite-slate |
CGC141 | rock | metamorphic slate |
CGC142 | rock | metamorphic phyllite-slate |
CGC143 | rock | metamorphic greenstone |
CGC145 | rock | sedimentary chert |
CGJ245 | mineral | |
CGJ246 | mineral | |
CGJ247 | mineral | |
CGK711 | rock | metamorphic unspecified |
CHA499 | concentrate | panned C3 fraction |
CHJ583 | mineral | |
CHJ584 | mineral | |
CHJ585 | mineral | |
CHJ586 | mineral | |
CHJ587 | mineral | |
CHJ588 | mineral | |
M184029 | rock | metamorphic greenstone |
W223184 | rock | metamorphic slate |
W223185 | rock | metamorphic slate |
W223186 | rock | metamorphic greenstone |
W223193 | rock | metamorphic greenstone |
W223194 | rock | metamorphic phyllite-slate |
W223195 | rock | metamorphic slate |
W223196 | rock | metamorphic greenstone |
Sample ID | Rock type | Rock name |
---|---|---|
CGC005 | unspecified | |
CGC121 | metamorphic | phyllite-slate |
CGC122 | metamorphic | phyllite-slate |
CGC125 | metamorphic | phyllite-slate |
CGC136 | metamorphic | unspecified |
CGC137 | unspecified | chert-jasperoid |
CGC138 | metamorphic | unspecified |
CGC139 | metamorphic | unspecified |
CGC140 | metamorphic | phyllite-slate |
CGC141 | metamorphic | phyllite-slate |
CGC142 | metamorphic | phyllite-slate |
CGC143 | metamorphic | unspecified |
CGC145 | unspecified | chert-jasperoid |
W223184 | metamorphic | slate |
W223185 | metamorphic | slate |
W223186 | metamorphic | greenstone |
W223193 | metamorphic | greenstone |
W223194 | metamorphic | unspecified |
W223195 | metamorphic | slate |
W223196 | metamorphic | greenstone |
Site name | Development | Commodities |
---|---|---|
Silverbow Basin Placers | Past Producer | AU |
Site | Status | Commodities |
---|---|---|
Alaska-Juneau; A-J; AJ | Inactive | Ag;Au;Pb |
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. |