Scientific data near [60.72440,-147.96430]

Search area extends approximately 17.8 km east-west and 36.4 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
Seward C-3	1:63,360 Alaska quadrangle
Seward	1:250,000 Alaska quadrangle

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
Togr	Igneous - Plutonic	Granite and granodiorite
Togum	Igneous - Plutonic	Mafic and ultramafic rocks of the Valdez and Orca Groups
Tos	Sedimentary	Sedimentary rocks of the Orca Group
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
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-SC25	Placer Au
AK-SC06	Cyprus massive sulfide
AK-SC04	Besshi massive sulfide
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
C154832	sediment
CBF589	sediment
CBF590	sediment
CCC174	concentrate	panned C3 fraction
CCC175	concentrate	panned C3 fraction
CFF684	sediment
CFR139	concentrate	panned C3 fraction
D520349	rock	igneous granite
D520350	rock	igneous granite
LFJ168	rock	igneous granite
LFJ169	rock	igneous granite
LFJ170	rock	metamorphic hornfels
LFJ171	rock	igneous granite
LFJ646	rock	igneous unspecified
LFY295	rock
LFY318	rock	igneous alkali granite
LFY361	rock	igneous unspecified
LFY362	rock	igneous unspecified
LFY363	rock	igneous unspecified
LFY364	rock	igneous unspecified
LFY365	rock	igneous unspecified
LFY366	rock	igneous unspecified
LFY367	rock	igneous unspecified
LFY368	rock	igneous unspecified
LFY369	rock	igneous unspecified
LFY370	rock	igneous unspecified
LFY371	rock	igneous unspecified
M146615	rock	igneous alkali granite
M147831	rock	igneous granodiorite
M150890	rock	igneous granite
M150892	rock	igneous quartz diorite
M151391	rock	metamorphic hornfels

National geochemical survey database

National-scale geochemical analysis of stream sediments and soils in the US, from existing data, reanalysis of existing samples, and new sampling. Goal for sample density is one per 289 square km.

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Sample ID	Material	Source
C-154832	Sediment	Pond, Natural, wet

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
7017719	1977-08-17	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.
7017753	1977-07-17	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.
7017754	1977-07-17	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.
7017755	1977-07-17	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.
7017756	1977-07-17	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.
7017757	1977-07-17	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7017760	1977-08-17	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.
7017761	1977-08-17	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.
7017762	1977-08-17	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.
7017763	1977-08-17	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.
7017764	1977-08-17	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
3019058	1977-08-17	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019093	1977-07-17	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019094	1977-07-17	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019095	1977-07-17	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019096	1977-07-17	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019097	1977-07-17	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019100	1977-08-17	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019101	1977-08-17	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019102	1977-08-17	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019103	1977-08-17	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3019104	1977-08-17	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
D520349	igneous	unspecified
D520350	igneous	unspecified
LFJ168	igneous	unspecified
LFJ169	igneous	unspecified
LFJ170	metamorphic	unspecified
LFJ171	igneous	unspecified
LFJ646	igneous	unspecified
LFY295	unspecified
LFY318	igneous	unspecified
LFY361	igneous	unspecified
LFY362	igneous	unspecified
LFY363	igneous	unspecified
LFY364	igneous	unspecified
LFY365	igneous	unspecified
LFY366	igneous	unspecified
LFY367	igneous	unspecified
LFY368	igneous	unspecified
LFY369	igneous	unspecified
LFY370	igneous	unspecified
LFY371	igneous	unspecified
M146615	igneous	alkali granite
M147831	igneous	granodiorite
M150890	igneous	granite
M150892	igneous	quartz diorite
M151391	metamorphic	hornfels

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
Unnamed Occurrence	Occurrence	W
Unnamed Prospect	Prospect	CU

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
Unnamed (near West Twin Bay on P...	Inactive	W
Unnamed (near South Bay on Perry...	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
C154832	surface
CBF589	stream/river	stream
CBF590	stream/river	stream
CFF684	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
CCC174	stream/river	stream
CCC175	stream/river	stream
CFR139	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.