Scientific data near [55.18800,-160.65400]

Search area extends approximately 4.5 km east-west and 7.8 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
Port Moller A-2	1:63,360 Alaska quadrangle
Port Moller	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Cold Bay	hydrologic unit
190301	hydrologic accounting unit
Yukon	hydrologic subregion
Alaska	hydrologic region
Areas administered by US Federal agencies

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
Thi	Igneous - Volcanic	Hypabyssal intrusions
Tmv	Igneous - Volcanic	Meshik Volcanics and similar rock units
w		Water

Airborne geophysical surveys

Aerial surveys of magnetic anomaly and gamma ray emission; older surveys were analog record which have been digitized, newer surveys collected data in digital form.

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ID	Data type	Description
Unga Island	M/EM/V-D	Unga Island 820 line km with spacing 0.15 km over parts of AK

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-AP04	Epithermal vein, generic
AK-AP09	Porphyry Cu, BC-Ak type
AK-AP13	Polymetallic vein
AK-AP11	Placer Au

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
CGE104	concentrate	panned C3 fraction
CGE169	sediment
CGE233	sediment
CGE552	concentrate	panned C3 fraction
CGE675	rock	igneous andesite
CGE723	rock	igneous diabase
CGE724	rock	igneous silicic
CGJ871	rock	igneous andesite
CHG278	concentrate	panned C3 fraction
F008359	rock	igneous dacite
F008368	rock	igneous andesite
F008369	rock	igneous andesite
M186055	rock	igneous dacite
M186076	rock	igneous andesite
M195568	rock	igneous dacite
M195577	rock	igneous andesite
M195578	rock	igneous andesite

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
CGE675	igneous	andesite
CGE723	igneous	diabase
CGE724	igneous	silicic
CGJ871	igneous	unspecified
F008359	igneous	dacite
F008368	igneous	andesite
F008369	igneous	andesite
M186055	igneous	dacite
M186076	igneous	andesite
M195568	igneous	dacite
M195577	igneous	andesite
M195578	igneous	andesite

Mineral Resource Data System

MRDS describes metallic and nonmetallic mineral resources throughout the world. Included are deposit name, location, commodity, deposit description, geologic characteristics, production, reserves, resources, and references.

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Site name	Development	Commodities
Amethyst	Prospect	AG AU AS CU HG PB ZN
Altair	Prospect	AG AU AS CU HG PB ZN
Aquila	Prospect	AG AU AS CU HG PB SB ZN
Ankle Creek	Prospect	AG AU AS CU HG PB ZN
Freds	Prospect	AU
Surprise	Prospect	AG AU AS CU HG PB ZN
Origin	Prospect	AU
Pmrgx-3	Occurrence	AG AU CU MO PB SB SN ZN
Aquila	Unknown	AU AG

Alaska Resource Data File

A comprehensive database of Alaskan mineral deposits compiled from the published literature and from unpublished reports and data from industry, the US Bureau of Land Management, and USGS.

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Site	Status	Commodities
PMRGX-3	Inactive	Ag;Au
Aquila; Unga	Active	Ag;Au
Origin	Inactive	Au
Freds	Inactive	Au
Surprise	Inactive	Ag;Au
Ankle Creek	Inactive	Ag;Au
Altair	Inactive	Ag;Au
Amethyst; Unga	Inactive	Ag;Au

National Geochemical Database: Sediment

Geochemical analysis of sediment samples from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are of stream sediment in the continental US and Alaska.

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Sample ID	Sample source	Sample notes
CGE169	stream/river	argillitic alteration;; stream
CGE233	stream/river	base metal mineralization;; stream

National Geochemical Database: Concentrate

Geochemistry of concentrates from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are from the continental US and Alaska.

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Sample ID	Sample source	Sample notes
CGE104	stream/river	stream
CGE552	stream/river	stream
CHG278

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.