Map symbol | Lithology | Unit name |
---|---|---|
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 |
w | Water |
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-SE13 | Polymetallic vein | |
AK-SE17 | Synorogenic-synvolcanic Ni-Cu |
Domain | Crust type | Region |
---|---|---|
Alexander | Oceanic arc | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
C105304 | sediment | |
C105304C | concentrate | panned C3 fraction |
CFV375 | rock | metamorphic phyllite-slate |
CFV376 | rock | metamorphic unspecified |
CFX943 | concentrate | panned C3 fraction |
CGC092 | sediment | |
EQC417 | sediment | |
F014991 | rock | metamorphic metabasalt |
Sample ID | Date collected | Sample type |
---|---|---|
7019982 | 1979-09-16 | 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 |
---|---|---|
3021602 | 1979-09-16 | 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 |
---|---|---|
CFV375 | metamorphic | phyllite-slate |
CFV376 | metamorphic | unspecified |
F014991 | metamorphic | metabasalt |
Site name | Development | Commodities |
---|---|---|
Rosetta | Prospect | AU |
Site | Status | Commodities |
---|---|---|
Rosetta; Hawk Inlet | Inactive | Au |
Sample ID | Sample source | Sample notes |
---|---|---|
C105304 | stream/river | stream |
CGC092 | stream/river | stream |
EQC417 | stream/river | stream |
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. |