Scientific data near [54.85889,-163.37917]

Search area extends approximately 2.2 km east-west and 3.9 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Aleutians East	Borough
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
False Pass D-5	1:63,360 Alaska quadrangle
False Pass	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Cold Bay	hydrologic unit
190301	hydrologic accounting unit
Yukon	hydrologic subregion
Alaska	hydrologic region

Geology of US states

Digital geologic maps of the US states with consistent lithology, age, GIS database structure, and format

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Map symbol	Lithology	Unit name
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
QTv	Igneous - Volcanic	Young volcanic rocks, undifferentiated
Tuu	Sedimentary	Unga, Belkofski, and Unalaska Formations
w		Water

Estimates of undiscovered mineral resources

National Mineral Resource Assessment 1998: Estimates of the number of undiscovered mineral resources of gold, silver, copper, lead, and zinc within identified permissive tracts (geographic areas in which mineral deposits may form).

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Tract	Deposit Type	Mineralization age
AK-AP10	Porphyry Cu, BC-Ak type
AK-AP05	Epithermal vein, generic
AK-AP14	Polymetallic vein

The continental crust

Seventy-seven major components of the North American continent were delineated at a general scale (1:5,000,000); including the general composition, geological environment, and types of primary metals endowments that can be expected in each domain.

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Domain	Crust type	Region
Chugach	Accretionary wedge	Alaska

Alaska Geochemical Database, Version 2.0 (AGDB2)--including "best value" data compilations for rock, sediment, soil, mineral, and concentrate sample media

Geochemical analyses of rocks, mineral separates, bulk samples from lake and stream sediments, heavy mineral concentrates, and soils collected by USGS from 1962 to 2009.

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Lab ID	Sample medium	Description
D509495	rock	igneous andesite
D509496	rock
D509497	rock	igneous andesite
D509498	rock	igneous andesite
D509499	rock	igneous andesite
D509500	rock	igneous andesite
D509501	rock	igneous intermediate
D509502	rock	igneous intermediate
F008286	rock	igneous andesite
F008287	rock	igneous breccia
F008288	rock	metamorphic unspecified
F008289	rock	metamorphic unspecified
F008290	rock	metamorphic unspecified
F008354	rock	igneous andesite
M181842	rock	igneous dacite

National Geochemical Database: Rock

Geochemical analysis of rock samples collected and analyzed by the USGS. This dataset includes and supersedes rock data formerly released as "Geochemistry of igneous rocks in the US extracted from the PLUTO database"

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Sample ID	Rock type	Rock name
D509495	igneous	andesite
D509496	unspecified
D509497	igneous	andesite
F008286	igneous	basalt
F008287	igneous	breccia
F008320	igneous	andesite porphyry
F008354	igneous	andesite
M181842	igneous	dacite

Global assessment of undiscovered copper resources

Deposits, prospects, and permissive tracts for porphyry and sediment-hosted copper resources worldwide, with estimates of undiscovered copper resources.

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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.