Counties, states, countries, continents, or oceans | |
Lake and Peninsula | Borough |
Alaska | state |
United States | country |
North America | continent |
Land | continent |
Map quadrangles, from USGS or Canadian NTS | |
Stepovak Bay D-4 | 1:63,360 Alaska quadrangle |
Stepovak Bay | 1:250,000 Alaska quadrangle |
Domain | Crust type | Region |
---|---|---|
Peninsular-Talkeetna | Oceanic arc | Alaska |
Record | Type | Comment |
---|---|---|
84ACe113c |
Lab ID | Sample medium | Description |
---|---|---|
CFM418 | rock | igneous unspecified |
CFM419 | rock | igneous unspecified |
CFM504 | rock | igneous dacite |
CFM521 | rock | igneous diorite |
M172056 | rock | igneous dacite |
M173422 | mineral | |
M173423 | mineral |
Sample ID | Rock type | Rock name |
---|---|---|
CFM418 | igneous | unspecified |
CFM419 | igneous | unspecified |
CFM504 | igneous | unspecified |
CFM521 | igneous | unspecified |
M172056 | igneous | dacite |
Site name | Development | Commodities |
---|---|---|
Unnamed (on Shapka Island) | Occurrence | SB AS |
Site | Status | Commodities |
---|---|---|
Unnamed (on Shapka Island) | Inactive | Sb |
Tract name | Deposit type | Geology |
---|---|---|
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. |