Counties, states, countries, continents, or oceans | |
Map quadrangles, from USGS or Canadian NTS | |
Skagway A-4 | 1:63,360 Alaska quadrangle |
Skagway | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Glacier Bay | hydrologic unit |
190103 | hydrologic accounting unit |
Arctic Slope | hydrologic subregion |
Alaska | hydrologic region |
Map symbol | Lithology | Unit name |
---|---|---|
g | Unconsolidated | Glaciers |
Kmig | Metamorphic | Migmatite and metaplutonic rocks |
Ksfg | Igneous - Plutonic | Foliated granitic rocks of Southeast Alaska |
Ph | Sedimentary | Halleck Formation and similar sedimentary rock units |
Plps | Sedimentary | Pybus Formation and correlative? limestone |
Sl | Sedimentary | Limestone, southeast Alaska |
St | Sedimentary | Turbidite deposits of southeast Alaska |
Tod | Igneous - Plutonic | Granodiorite, quartz diorite, and diorite |
w | Water |
ID | Data type | Description |
---|---|---|
Glacier Bay East | M-D | Glacier Bay East 6195 line km with spacing 1.60 km over parts of AK |
Southeastern Alaska | M-D | Southeastern Alaska 12364 line km with spacing 9.60 km over parts of AK |
Skagway | M/R-D | Skagway 450 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SE20 | Porphyry Cu-Mo | |
AK-SE08 | Placer Au | |
AK-SE07 | Porphyry Cu | |
AK-SE19 | Porphyry Cu, skarn related | |
AK-SE20 | Porphyry Cu-Mo | |
AK-SE13 | Polymetallic vein | |
AK-SE12 | Polymetallic replacement | |
AK-SE03 | Low-sulfide Au-quartz veins | |
AK-SE07 | Porphyry Cu | |
AK-SE19 | Porphyry Cu, skarn related |
Domain | Crust type | Region |
---|---|---|
Alexander | Oceanic arc | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
CFT055 | rock | igneous intermediate |
CFT056 | rock | igneous intermediate |
CFT057 | rock | igneous intermediate |
CFT058 | rock | igneous intermediate |
CFT059 | rock | igneous basalt |
D124388 | sediment | |
D124486 | rock | |
D124495 | rock | |
D124496 | rock | metamorphic hornfels |
D124497 | rock | |
D124498 | rock | |
D124499 | rock | metamorphic skarn |
LCI399 | rock | metamorphic metasediment |
LCI400 | rock | metamorphic metasediment |
LCI401 | rock | metamorphic hornfels |
LCI402 | rock | igneous andesite |
LCI403 | rock | metamorphic metashale |
LCI404 | rock | igneous andesite |
LCI405 | rock | igneous andesite |
LCI406 | rock | igneous andesite |
LCI407 | rock | igneous andesite |
LCI408 | rock | igneous andesite |
LCI409 | rock | igneous andesite |
LCI410 | rock | igneous andesite |
LCI411 | rock | igneous andesite |
LCI412 | rock | igneous andesite |
LCI413 | rock | igneous andesite |
LCI414 | rock | igneous andesite |
LCI415 | rock | igneous andesite |
LCI416 | rock | igneous andesite |
LCI417 | rock | igneous andesite |
LDH695 | rock | metamorphic metasediment |
LDH696 | rock | metamorphic metasediment |
LDH697 | rock | metamorphic metasediment |
LDH698 | rock | metamorphic metasediment |
LDH699 | rock | metamorphic metasediment |
LDH700 | rock | metamorphic metasediment |
LDH701 | rock | metamorphic metasediment |
LDH702 | rock | metamorphic metasediment |
LDH703 | rock | |
LDM035 | sediment | |
M156649 | rock | igneous basalt |
Sample ID | Rock type | Rock name |
---|---|---|
CFT055 | igneous | intermediate |
CFT056 | igneous | intermediate |
CFT057 | igneous | intermediate |
CFT058 | igneous | intermediate |
CFT059 | igneous | intermediate |
D124486 | unspecified | |
D124495 | unspecified | |
D124496 | metamorphic | hornfels |
D124497 | unspecified | |
D124498 | unspecified | |
D124499 | metamorphic | skarn |
LCI399 | unspecified | |
LCI400 | unspecified | |
LCI401 | unspecified | |
LCI402 | unspecified | |
LCI403 | unspecified | |
LCI404 | unspecified | |
LCI405 | unspecified | |
LCI406 | unspecified | |
LCI407 | unspecified | |
LCI408 | unspecified | |
LCI409 | unspecified | |
LCI410 | unspecified | |
LCI411 | unspecified | |
LCI412 | unspecified | |
LCI413 | unspecified | |
LCI414 | unspecified | |
LCI415 | unspecified | |
LCI416 | unspecified | |
LCI417 | unspecified | |
LDH695 | unspecified | |
LDH696 | unspecified | |
LDH697 | unspecified | |
LDH698 | unspecified | |
LDH699 | unspecified | |
LDH700 | unspecified | |
LDH701 | unspecified | |
LDH702 | unspecified | |
LDH703 | unspecified | |
M156649 | igneous | basalt |
Site name | Development | Commodities |
---|---|---|
Mount Brock | Occurrence | AG CU PB ZN AU SB |
Mount Brack | Occurrence | CD SB AS CU AU PB AG ZN |
Site | Status | Commodities |
---|---|---|
Mount Brock; Mount Brack | Inactive | Ag;Cu;Pb;Zn |
Sample ID | Sample source | Sample notes |
---|---|---|
D124388 | stream/river | silt & clay; stream |
LDM035 | stream/river | G005, D124388;; 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. |