Scientific data near [61.02000,-147.91000]

Search area extends approximately 17.8 km east-west and 36.8 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
Anchorage A-3	1:63,360 Alaska quadrangle
Anchorage	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
g	Unconsolidated	Glaciers
Kaf	Sedimentary	Chugach flysch
Kaf	Sedimentary	Chugach flysch
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
w		Water
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
Chugach	M-D	Chugach 2743 line km with spacing 1.60 km over parts of AK
Anchorage	M/R-D	Anchorage 2172 line km with spacing 9.60 km over parts of AK
Seward	M/R-D	Seward 1738 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-SC12	Low-sulfide Au-quartz veins, Chugach type
AK-SC25	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
Yakutat-Malaspina	Large igneous province	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
CBF450	sediment
CBF534	sediment
CBF535	sediment
CBF537	sediment
CCB921	concentrate	panned C3 fraction
CCB922	concentrate	panned C3 fraction
CCB923	concentrate	panned C3 fraction
CCB924	concentrate	panned C3 fraction
CCB925	concentrate	panned C3 fraction
CFF625	sediment
CFF633	sediment
CFF656	sediment
CFF664	sediment
CFF677	sediment
CFR082	concentrate	panned C3 fraction
CFR089	concentrate	panned C3 fraction
CFR111	concentrate	panned C3 fraction
CFR119	concentrate	panned C3 fraction
CFR132	concentrate	panned C3 fraction
CFX685	concentrate	panned C3 fraction
CFX686	concentrate	panned C3 fraction
CFX729	concentrate	panned C3 fraction
CFZ195	sediment
CFZ199	sediment
CFZ257	sediment
CFZ258	sediment
LFJ196	rock	sedimentary unspecified
LFJ197	rock	sedimentary unspecified
LFJ198	rock	sedimentary unspecified
LFJ199	rock
LFJ440	sediment
LFJ441	sediment
LFY200	sediment
LGG788	concentrate	panned C3 fraction
LGW840	concentrate	panned C3 fraction
LGW841	concentrate	panned C3 fraction

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
7000712	1977-06-29	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7000713	1977-06-29	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7000714	1977-06-29	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7000715	1977-06-29	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7001546	1977-08-06	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.
7017396	1977-08-06	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7017397	1977-08-06	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7017398	1977-08-06	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.

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
3000722	1977-06-29	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3000723	1977-06-29	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3000724	1977-06-29	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3000725	1977-06-29	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3000726	1977-06-29	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3001596	1977-08-06	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3018645	1977-08-06	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3018646	1977-08-06	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3018647	1977-08-06	Natural-pond (or lake in Alaska) 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
LFJ196	sedimentary	unspecified
LFJ197	sedimentary	unspecified
LFJ198	unspecified
LFJ199	unspecified

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
Sweepstake Mining Co.	Past Producer	AU
Nugget	Past Producer	AU CU PB AG
Cann and Minor	Prospect	AU CU ZN
Golden Wonder 1&9	Prospect	AU CU PB ZN
North Star	Past Producer	AU AG
Q. & Q.	Prospect	AU
Osceola	Prospect	AU
Lafayette Glacier	Occurrence	AG AU
Cann & Minor	Prospect	AU AG
Gold Queen	Prospect	AU
Frodenburg and Bloom	Occurrence	AU
Golden Wonder #1	Past Producer	AU PB
Tolson and Stanton	Prospect	AU ZN
Golden Wonder #9	Occurrence	AU CU ZN
Consolidated	Past Producer	AU
Mayflower	Prospect	AU AG
Sweepstake Mining Co.	Past Producer	AU CU
Conley and Mcchesney	Past Producer	AU CU PB ZN
Frodenberg and Bloom	Prospect	AU
Conley & Mcchesney	Occurrence	AU CU PB
Morning Star	Past Producer	AU AG
Carter Claims	Occurrence	AU
Tolson & Stanton	Occurrence	AU ZN
Beauty Bird	Prospect	AU
Mountain 1-4	Prospect	AU
College Fiord	Prospect	AU
Unnamed (near Crescent Glacier)	Occurrence	AG AU

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
Q. & Q.	Inactive	Au?
Osceola	Inactive	Au
Cann and Minor	Inactive	Au?;Cu;Zn
Lafayette Glacier	Inactive	Ag;Au
Unnamed (near Crescent Glacier)	Inactive	Ag;Au
Griset; Keynote	Inactive	Au
Tolson and Stanton	Inactive	Au;Zn
Golden Eagle	Inactive	Au
Frodenburg and Bloom	Inactive	Au
Mayflower	Inactive	Au
Nugget	Inactive	Au
Golden Wonder #9; Mountain	Inactive	Au
North Star; Mohawk	Inactive	Au
Morning Star; Consolidated	Inactive	Au
Gold Queen	Inactive	Au
Sweepstake (Mining Co.)	Inactive	Au;Cu
Beauty Bird; Mohawk	Inactive	Au
Conley and McChesney; Whistler; ...	Inactive	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
CBF534	stream/river	stream
CBF535	stream/river	stream
CBF537	stream/river	stream
CFF625	stream/river	stream
CFF633	stream/river	stream
CFF656	stream/river	stream
CFF664	stream/river	stream
CFF677	stream/river	stream
CFZ195	stream/river	stream
CFZ199	stream/river	stream
CFZ257	stream/river	stream
CFZ258	stream/river	stream
LFJ440	stream/river	stream
LFJ441	stream/river	stream
LFY200	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
CCB922	stream/river	stream
CCB923	stream/river	stream
CCB924	stream/river	stream
CCB925	stream/river	stream
CFR082	stream/river	stream
CFR089	stream/river	stream
CFR111	stream/river	stream
CFR119	stream/river	stream
CFR132	stream/river	stream
CFX685	stream/river	stream
CFX729	stream/river	stream
LGG788	stream/river	stream
LGW840	stream/river	insufficient sample - data qualitative;; stream
LGW841	stream/river	insufficient sample - data qualitative;; 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.