Scientific data near [60.66300,-145.55100]

Search area extends approximately 8.9 km east-west and 18.2 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Valdez-Cordova	Census area
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Cordova C-5	1:63,360 Alaska quadrangle
Cordova	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Eastern Prince William Sound	hydrologic unit
190202	hydrologic accounting unit
Northwest Alaska	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
g	Unconsolidated	Glaciers
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Toegr	Igneous - Plutonic	Granitic rocks
Togum	Igneous - Plutonic	Mafic and ultramafic rocks of the Valdez and Orca Groups
Togv	Igneous - Volcanic	Volcanic rocks of the Orca Group and Ghost Rocks Formation
Tos	Sedimentary	Sedimentary rocks of the Orca Group
Tovs	Sedimentary	Sedimentary and volcanic rocks of the Orca Group, undivided
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
Prince William Sound	M-D	Prince William Sound 27519 line km with spacing 1.60 km over parts of AK
Cordova	M/R-D	Cordova 1496 line km with spacing 9.60 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-SC25	Placer Au
AK-SC06	Cyprus massive sulfide
AK-SC04	Besshi massive sulfide

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
Yakutat-Malaspina	Large igneous province	Alaska

Radiometric ages of rocks from Alaska

Radiometric ages of rocks or minerals sampled from Alaska. The data were collected from professional publications and/or received from researchers and used by permission.

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Record	Type	Comment
85ANk 96B

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
CFF030	sediment
CFF159	sediment
CFF171	sediment
CFF172	sediment
CFG030	concentrate	panned C3 fraction
CFG159	concentrate	panned C3 fraction
CFG171	concentrate	panned C3 fraction
CFG172	concentrate	panned C3 fraction
CFG836	rock	metamorphic metasediment
LFY212	sediment
LGG800	concentrate	panned C3 fraction
M168201	rock	metamorphic greenschist
M168203	rock	igneous gabbro

Geochemistry of stream sediments in the US from the NURE-HSSR database

National-scale geochemical analysis of stream sediments and soils in the US collected and analyzed under the National Uranium Resource Evaluation program.

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Sample ID	Date collected	Sample type
7018039	1978-06-20	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7018040	1978-06-20	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7018041	1978-06-20	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.

Geochemistry of water samples in the US from the NURE-HSSR database

National-scale geochemical analysis of water samples in the US collected and analyzed under the National Uranium Resource Evaluation program.

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Sample ID	Date collected	Sample type
3019418	1978-06-20	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019419	1978-06-20	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019420	1978-06-20	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.

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
CFG836	metamorphic	metasediment
M168201	metamorphic	greenschist
M168203	igneous	gabbro

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
Head of the Bay	Prospect	CU AG ZN
Head-Of-The-Bay (Cordova - Tacoma Copper Co.)	Prospect	CU AG ZN
Snyder Falls Creek	Occurrence	CU
Celadonia Group	Prospect	CU
Wash and Waskey No. 2	Prospect	CU
Synder Falls Creek	Occurrence	CU 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
Snyder Falls Creek	Inactive	Cu
Head-Of-The-Bay (Cordova - Tacom...	Inactive	Cu
Celadonia Group	Inactive	Cu

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
CFF030	stream/river	stream
CFF159	stream/river	stream
CFF171	stream/river	stream
CFF172	stream/river	stream
LFY212	stream/river	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
CFG030	stream/river	stream
CFG159	stream/river	stream
CFG171	stream/river	stream
CFG172	stream/river	stream
LGG800	stream/river	stream

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
Yukon-Tanana Upland	porphyry copper	Kluane Arc and Tertiary Kuskokwim Mountains volcanic-plutonic belt (continuation of Canadian Cordilleran continental arc); north of the Denali Fault
Western Alaska Range	porphyry copper	Cretaceous porphyry prospects along the Kahiltna Basin-Peninsula terrane boundary
Eastern Alaska Range and Wrangell Mountains	porphyry copper	Cretaceous (115-105Ma) deposits and prospects along the Nutzotin Basin-Wrangellia terrane boundary; south of the Denali Fault
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.