Scientific data near [57.86590,-134.24940]

Search area extends approximately 4.5 km east-west and 8.4 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Map quadrangles, from USGS or Canadian NTS
Sitka D-1	1:63,360 Alaska quadrangle
Sitka	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Admiralty Island	hydrologic unit
190102	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
PDcf	Sedimentary	Cannery Formation and Porcupine slate of Redman and others (1985), undivided
Trhg	Sedimentary	Hyd Group, undivided
Trhgs	Sedimentary	Hyd Group sedimentary rocks, undivided
Trhgv	Sedimentary	Hyd Group igneous rocks, undivided
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
Sitka	M/R-D	Sitka 579 line km with spacing 9.60 km over parts of AK

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
C105379	rock	metamorphic metachert
C105380	rock	metamorphic metabasalt
C126524	rock	igneous gabbro
C126526	rock	igneous greenstone
D385808	rock	igneous basalt
D385835	rock	sedimentary unspecified
D389632	rock	sedimentary argillite
D389640	rock	sedimentary chert
D389641	rock	sedimentary chert
D389642	rock	sedimentary argillite
D389643	rock	igneous greenstone
D389648	rock	sedimentary argillite
D389688	concentrate	panned C3 fraction
D389730	concentrate	panned C3 fraction
D389740	sediment
D389782	sediment
D390681	rock	metamorphic greenstone
D390685	rock	metamorphic greenstone
D563371	rock	sedimentary chert
D563372	rock	igneous gabbro
D563392	rock	sedimentary graywacke
D563393	rock	sedimentary graywacke
D563394	rock	igneous greenstone
D563542	rock	igneous gabbro
D563544	rock	igneous greenstone
D583756	rock	sedimentary chert
D583760	rock	sedimentary chert
D583761	rock	sedimentary chert
F014999	rock	metamorphic metagabbro
F015000	rock	metamorphic metagabbro
M199977	rock	metamorphic greenstone
M199978	rock	metamorphic greenstone
M199979	rock	metamorphic greenstone

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
7020983	1979-09-23	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7020986	1979-09-23	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
3022614	1979-09-23	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3022617	1979-09-23	Stream 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
C105379	metamorphic	metachert
C105380	metamorphic	metabasalt
C126524	igneous	gabbro
C126526	igneous	greenstone
D385808	igneous	unspecified
D385835	sedimentary	unspecified
D389632	sedimentary	argillite
D389648	sedimentary	argillite
D390681	igneous	unspecified
D390685	igneous	unspecified
D563371	sedimentary	chert
D563372	igneous	gabbro
D563392	sedimentary	graywacke
D563393	sedimentary	graywacke
D563394	igneous	basalt
D563542	igneous	gabbro
D563544	igneous	greenstone
D583756	sedimentary	chert
D583760	sedimentary	chert
D583761	sedimentary	chert
F014999	metamorphic	metagabbro
F015000	metamorphic	metagabbro
M199977	metamorphic	greenstone
M199978	metamorphic	greenstone
M199979	metamorphic	greenstone

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
Slow Boat	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
Slow Boat	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
D389740	stream/river	stream
D389782	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
D389688	stream/river	panned concentrates;; stream
D389730	stream/river	panned concentrates;; 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.