Scientific data near [61.72530,-143.80190]

Search area extends approximately 1.1 km east-west and 2.4 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
McCarthy C-8	1:63,360 Alaska quadrangle
McCarthy	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Middle Copper River	hydrologic unit
190201	hydrologic accounting unit
Northwest Alaska	hydrologic subregion
Alaska	hydrologic region
Areas administered by US Federal agencies
Wrangell-Saint Elias Wilderness	Wilderness
Wilderness NPS	Type of land area
NPS	Federal land areas administered by NPS
Wrangell-Saint Elias National Park and Preserve	National Park
National Park NPS	Type of land area
NPS	Federal land areas administered by NPS

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
KJse	Igneous - Plutonic	Saint Elias suite of Gordey and Makepeace (2003) and similar rocks
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided

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
McCarthy	M-D	McCarthy 11748 line km with spacing 1.60 km over parts of AK
Mc Carthy	M/R-D	Mc Carthy 1971 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-SC05	Cu-Ag quartz veins
AK-SC16	Kuroko massive sulfide
AK-SC23	Porphyry Cu, BC-Ak type
AK-SC33	Cu (Au) skarn
AK-SC31	Cu (Au) skarn
AK-SC21	Porphyry Cu, BC-Ak type
AK-SC28	Polymetallic vein
AK-SC22	Porphyry Cu, BC-Ak type
AK-SC32	Cu (Au) skarn
AK-SC01	Basaltic Cu/Kennecott Cu
AK-SC29	Polymetallic vein
AK-SC18	Synorogenic-synvolcanic Ni-Cu
AK-SC09	Low-sulfide Au-quartz veins

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
Wrangellia	Oceanic arc	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
AHT442	sediment
AHT443	sediment

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
7001973		Wet stream sediment sample dried at less than or equal to 100øC and sieved to -80 mesh through stainless steel sieves.
7001974		Wet stream sediment sample dried at less than or equal to 100øC and sieved to -80 mesh through stainless steel sieves.
7001975		Wet stream sediment sample dried at less than or equal to 100øC and sieved to -80 mesh through stainless steel sieves.
7002641	1978-07-04	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
3002041		Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3002042		Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3002043		Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3002752	1978-07-04	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.

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
AHT442	stream/river	stream
AHT443	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
Skolai Arc - Eastern Alaska	porphyry copper	Late Paleozoic Skolai Arc of the Wrangellia terrane; 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.