Scientific data near [55.40979,-133.29892]

Search area extends approximately 2.2 km east-west and 3.9 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Map quadrangles, from USGS or Canadian NTS
Craig (alaska) B-4	1:63,360 Alaska quadrangle
Craig	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Prince of Wales	hydrologic unit
190101	hydrologic accounting unit
Arctic Slope	hydrologic subregion
Alaska	hydrologic region
Areas administered by US Federal agencies
Tongass National Forest	National Forest
National Forest FS	Type of land area
FS	Federal land areas administered by FS

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
Dfr	Igneous - Volcanic	Freshwater Bay and Port Refugio Formations
Kmgr	Igneous - Plutonic	Granitic rocks of central and southeast Alaska
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
Craig 1982	M-D	Craig 1982 9221 line km with spacing 0.80 km over parts of AK
Craig AK	M/R-D	Craig AK 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-SE07	Porphyry Cu
AK-SE13	Polymetallic vein
AK-SE19	Porphyry Cu, skarn related
AK-SE20	Porphyry Cu-Mo

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
Alexander	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
ACL896	sediment
AMG002	sediment
AMG003	sediment
AMG004	sediment
CGZ177	sediment
CGZ918	concentrate	panned C3 fraction
CGZ933	rock	igneous granite
CGZ934	rock	igneous monzonite
CGZ935	rock	igneous monzonite
CGZ936	rock	igneous monzonite
CGZ937	rock	igneous monzonite
CGZ938	rock	igneous monzonite

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
CGZ933	igneous	granite
CGZ934	igneous	monzonite
CGZ935	igneous	monzonite
CGZ936	igneous	monzonite
CGZ937	igneous	monzonite
CGZ938	igneous	monzonite

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	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 (on San Juan Bautista Is...	Undetermined	Cu;Mo?

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
ACL896	stream/river	stream
AMG001	stream/river	stream
AMG002	stream/river	stream
AMG003	stream/river	stream
AMG004	stream/river	stream
CGZ177	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
CGZ918	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
Late Continental Arc	porphyry copper	Porphyry Cu systems associated with predominantly calc-alkalic igneous rocks of post-accretionary continental magmatic arcs (Oligocene-Pliocene)
Intermontane Island-Arc	porphyry copper	Porphyry Cu systems associated with pre-accretionary Triassic and Jurassic calc-alkalic island arcs that formed offshore of western North America
Intermontane Island-Arc Cu-Au	porphyry copper	Triassic and Jurassic alkalic igneous rocks of accreted island arcs that formed offshore of western North America
Insular Mixed Island- and Continental Arc	porphyry copper	Calc-alkalic igneous rocks of accreted Jurassic island-arc terranes
Cordilleran Continental Arc	porphyry copper	Porphyry Cu systems associated with predominantly calc-alkalic igneous rocks of post-accretionary continental magmatic arcs (Jurassic-Eocene)
Southeast Alaska Tertiary	porphyry copper	Tertiary subduction and postsubduction calc-alkalic plutons of southeast Alaska
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.