Scientific data near [56.01644,-130.06481]

Search area extends approximately 2.2 km east-west and 4.0 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Map quadrangles, from USGS or Canadian NTS
Bradfield Canal A-1	1:63,360 Alaska quadrangle
Bradfield Canal	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Southeast Mainland	hydrologic unit
190101	hydrologic accounting unit
Arctic Slope	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
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
TrPvs	Metamorphic	Metamorphic rocks, southeast Alaska
Trqd	Igneous - Plutonic	Quartz diorite and granodiorite

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
SE Alaska (Granite Fiords)	M-Dz	SE Alaska (Granite Fiords) 2735 line km with spacing 1.60 km over parts of AK
Bradfield Canal	M/R-D	Bradfield Canal 716 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-SE05	Sierran Kuroko mass. sulf.
AK-SE07	Porphyry Cu
AK-SE19	Porphyry Cu, skarn related
AK-SE20	Porphyry Cu-Mo
AK-SE13	Polymetallic vein

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
Taku	Passive margin	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
ACI818	sediment
ACI819	sediment
BFE219	concentrate	panned C1 fraction
BFE761	concentrate	panned C1 fraction
BFN993	concentrate	panned C3 fraction
D153997	concentrate	panned C3 fraction
M119827	rock	metamorphic meta-andesite
M197098	rock	metamorphic meta-andesite

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
M119827	igneous	hornblende andesite
M197098	metamorphic	meta-andesite

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
Butte	Prospect	AG AU PB W
Monarch	Occurrence	AG AU CU PB ZN W BA
Monarch	Prospect	AG AU CU PB ZN W BA
Butte	Occurrence	AG AU PB W
Bluebird	Occurrence	W CU MO PB
Cripple Creek	Prospect	AG CU PB ZN
Portland	Prospect	CU PB ZN
Crest	Prospect	AU CU PB
Bluebird	Occurrence	W CU MO PB
Martha Lee	Occurrence	AG AU CU PB ZN
Brigadier	Prospect	PB CU AU AG W ZN
Cripple Creek	Prospect	PB ZN
Martha Lee	Occurrence	AG AU CU PB ZN

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
Martha Lee	Undetermined	Ag?;Au;Cu;Pb;Zn
Cripple Creek	Inactive	Ag?;Cu;Pb;Zn
Crest	Inactive	Au;Cu;Pb
Butte; Brigadier; Hyder Butte	Inactive	Ag;Au;Pb
Monarch	Inactive	Ag;Au;Cu;Pb;Zn

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
ACI818	stream/river	stream
ACI819	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
BFE219	stream/river	stream
BFE761	stream/river	stream
BFN993	stream/river	stream
D153997	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.