Counties, states, countries, continents, or oceans | |
Map quadrangles, from USGS or Canadian NTS | |
Ketchikan A-5 | 1:63,360 Alaska quadrangle |
Ketchikan | 1:250,000 Alaska quadrangle |
Watershed boundaries (USGS hydrologic units) | |
Ketchikan | hydrologic unit |
190101 | hydrologic accounting unit |
Arctic Slope | hydrologic subregion |
Alaska | hydrologic region |
Map symbol | Lithology | Unit name |
---|---|---|
DOgi | Igneous - Plutonic | Syenite, trondhjemite, and granite |
DOgi | Igneous - Plutonic | Syenite, trondhjemite, and granite |
KJgn | Sedimentary | Gravina-Nuzotin unit |
KJgv | Sedimentary | Volcanic rocks of the Gravina-Nutzotin belt |
SOmi | Metamorphic | Heterogeneous metamorphic rocks, southeast Alaska |
Trhgs | Sedimentary | Hyd Group sedimentary rocks, undivided |
Trhgs | Sedimentary | Hyd Group sedimentary rocks, undivided |
Trhgs | Sedimentary | Hyd Group sedimentary rocks, undivided |
Trhgv | Sedimentary | Hyd Group igneous rocks, undivided |
Trhgv | Sedimentary | Hyd Group igneous rocks, undivided |
ID | Data type | Description |
---|---|---|
Ketchikan '76 | M-Dz | Ketchikan '76 8529 line km with spacing 1.60 km over parts of AK |
Annette Island | M-D | Annette Island 997 line km with spacing 0.40 km over parts of AK |
Ketchikan | M/R-D | Ketchikan 1609 line km with spacing 9.60 km over parts of AK |
Tract | Deposit Type | Mineralization age |
---|---|---|
AK-SE13 | Polymetallic vein | |
AK-SE03 | Low-sulfide Au-quartz veins |
Domain | Crust type | Region |
---|---|---|
Alexander | Oceanic arc | Alaska |
Lab ID | Sample medium | Description |
---|---|---|
CHY919 | rock | igneous trondhjemite |
CHY920 | rock | igneous intermediate |
CHY921 | rock | igneous intermediate |
CHY922 | rock | igneous felsic |
CHY923 | rock | igneous felsic |
CHY939 | rock | igneous intermediate |
CHY940 | rock | metamorphic phyllite-slate |
CHY941 | rock | metamorphic phyllite-slate |
CHY942 | rock | sedimentary chert |
CHY947 | rock | igneous greenstone |
CHY952 | rock | igneous felsic |
CHY953 | rock | igneous felsic |
CHY957 | rock | igneous mafic |
CHY958 | rock | metamorphic phyllite-slate |
CHY966 | rock | igneous greenstone |
CHY967 | rock | sedimentary chert |
CHY968 | rock | sedimentary chert |
CJL259 | rock | metamorphic metabasite |
CJL260 | rock | |
CJL261 | rock | |
CJL262 | rock | igneous intermediate |
CJL263 | rock | igneous intermediate |
CJL266 | rock | |
CJL374 | rock | metamorphic phyllite-slate |
CJL375 | rock | metamorphic phyllite-slate |
CJL381 | rock | metamorphic phyllite-slate |
CJL382 | rock | metamorphic phyllite-slate |
CJL383 | rock | |
CJL384 | rock | metamorphic phyllite-slate |
CJL385 | rock | igneous mafic |
CJL386 | rock | metamorphic phyllite-slate |
CJL387 | rock | igneous felsic |
CJL388 | rock | igneous felsic |
CJL405 | rock | metamorphic phyllite-slate |
CJL406 | rock | metamorphic phyllite-slate |
CJL413 | rock | metamorphic phyllite-slate |
CJL414 | rock | metamorphic phyllite-slate |
CJL415 | rock | metamorphic phyllite-slate |
CJL416 | rock | metamorphic phyllite-slate |
CJL417 | rock | igneous unspecified |
CJL418 | rock | |
M179952 | rock | igneous trondhjemite |
M184035 | rock | igneous greenstone |
M184036 | rock | igneous diorite |
M185567 | rock | metamorphic metabasite |
Sample ID | Date collected | Sample type |
---|---|---|
7022007 | 1979-09-23 | Wet natural-pond (or lake in Alaska) 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 |
---|---|---|
3023640 | 1979-09-23 | Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid. |
Sample ID | Rock type | Rock name |
---|---|---|
CHY919 | igneous | intermediate |
CHY920 | igneous | intermediate |
CHY921 | igneous | intermediate |
CHY922 | igneous | felsic |
CHY923 | igneous | felsic |
CHY939 | igneous | intermediate |
CHY940 | metamorphic | phyllite-slate |
CHY941 | metamorphic | phyllite-slate |
CHY942 | unspecified | chert-jasperoid |
CHY947 | igneous | mafic |
CHY952 | igneous | felsic |
CHY953 | igneous | felsic |
CHY957 | igneous | mafic |
CHY958 | metamorphic | phyllite-slate |
CHY965 | igneous | intermediate |
CHY966 | igneous | mafic |
CHY967 | unspecified | chert-jasperoid |
CHY968 | unspecified | chert-jasperoid |
CJL259 | igneous | mafic |
CJL260 | unspecified | |
CJL261 | unspecified | |
CJL262 | igneous | intermediate |
CJL263 | igneous | intermediate |
CJL266 | unspecified | |
CJL374 | metamorphic | phyllite-slate |
CJL375 | metamorphic | phyllite-slate |
CJL381 | metamorphic | phyllite-slate |
CJL382 | metamorphic | phyllite-slate |
CJL383 | unspecified | |
CJL384 | metamorphic | phyllite-slate |
CJL385 | igneous | mafic |
CJL386 | metamorphic | phyllite-slate |
CJL387 | igneous | felsic |
CJL388 | igneous | felsic |
CJL405 | metamorphic | phyllite-slate |
CJL406 | metamorphic | phyllite-slate |
CJL413 | metamorphic | phyllite-slate |
CJL414 | metamorphic | phyllite-slate |
CJL415 | metamorphic | phyllite-slate |
CJL416 | metamorphic | phyllite-slate |
CJL417 | igneous | unspecified |
CJL418 | unspecified | |
M179952 | igneous | trondhjemite |
M184035 | igneous | greenstone |
M184036 | igneous | diorite |
M185567 | metamorphic | metabasite |
Site name | Development | Commodities |
---|---|---|
Unnamed (ridge NE of Round Mountain) | Occurrence | CU |
Unnamed | Occurrence | CU |
Unnamed (near Bingo Mountain) | Occurrence | AU CU AG |
Unnamed (near Helen Todd Lake) | Occurrence | PB |
Site | Status | Commodities |
---|---|---|
Unnamed (ridge NE of Round Mount... | Undetermined | Cu |
Unnamed (near Bingo Mountain) | Undetermined | Au;Cu |
Unnamed (near Helen Todd Lake) | Undetermined | 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. |