Map symbol | Lithology | Unit name |
---|---|---|
Dgb | Metamorphic | Gambier Bay Formation, undivided |
Dgb | Metamorphic | Gambier Bay Formation, undivided |
KPzum | Igneous - Plutonic | Dunite and serpentinite, undivided |
KPzum | Igneous - Plutonic | Dunite and serpentinite, undivided |
PDcf | Sedimentary | Cannery Formation and Porcupine slate of Redman and others (1985), undivided |
Trhgs | Sedimentary | Hyd Group sedimentary rocks, undivided |
Trhgs | Sedimentary | Hyd Group sedimentary rocks, undivided |
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 |
---|---|---|
CFL874 | rock | metamorphic greenschist |
M172437 | rock | metamorphic greenschist |
M178962 | rock | metamorphic phyllite |
M178963 | rock | metamorphic phyllite |
M178964 | rock | metamorphic phyllite |
M178980 | rock | metamorphic meta-argillite |
M178981 | rock | metamorphic meta-argillite |
M184548 | rock | metamorphic phyllite |
M184549 | rock | metamorphic phyllite |
M184550 | rock | metamorphic phyllite |
M184551 | rock | metamorphic phyllite |
M184557 | rock | metamorphic breccia |
M193439 | rock | igneous dacite |
M193440 | rock | igneous gabbro |
M193441 | rock | igneous dacite |
Sample ID | Rock type | Rock name |
---|---|---|
CFL874 | igneous | mafic |
M172437 | metamorphic | greenschist |
M178962 | metamorphic | schist |
M178963 | metamorphic | schist |
M178964 | metamorphic | schist |
M178980 | metamorphic | phyllite |
M178981 | metamorphic | marble |
M184548 | metamorphic | metabasalt |
M184549 | metamorphic | metabasalt |
M184550 | metamorphic | metasediment |
M184551 | metamorphic | metabasalt |
M184557 | metamorphic | metasediment |
M193263 | metamorphic | schist |
M193439 | igneous | dacite |
M193440 | igneous | gabbro |
M193441 | igneous | dacite |
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. |