Scientific data near [58.94138,-161.71556]

Search area extends approximately 2.2 km east-west and 4.3 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Bethel	Census area
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Hagemeister Island D-6	1:63,360 Alaska quadrangle
Hagemeister Island	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Kuskokwim Delta	hydrologic unit
190305	hydrologic accounting unit
Yukon	hydrologic subregion
Alaska	hydrologic region

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
JPs	Metamorphic	Calcareous and metabasaltic schist and phyllite
JTros	Tectonite	Newenham ophiolite complex
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
Goodnews Area	M-Dz	Goodnews Area 19634 line km with spacing 1.20 km over parts of AK
Hagemeister Island	M/R-D	Hagemeister Island 329 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-SW14	Placer Au
AK-SW06	Low-sulfide Au-quartz veins
AK-SW08	Kuroko massive sulfide
AK-SW02	Besshi massive sulfide
AK-SW16	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
Walrus-Goodnews	Accretionary wedge	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.

Database Home

Lab ID	Sample medium	Description
BAT236	sediment
BAT237	sediment
BAT929	rock	igneous greenstone
BDG789	sediment
BDG790	sediment
BDG791	sediment
BDG792	sediment

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
BAT846	igneous	dunite
BAT847	igneous	peridotite
BAT875	igneous	pyroxenite
BAT928	igneous	dunite
BAT929	igneous	greenstone
BDG911	igneous	peridotite
BDP027	metamorphic	greenschist
BDP028	metamorphic	greenschist
BES109	igneous	pyroxenite
BES139	igneous	dunite
BFZ528	igneous	dunite
BFZ566	igneous	pyroxenite
BFZ568	igneous	dunite
M114004	igneous	dunite
M114042	igneous	pyroxenite
M114044	igneous	dunite

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
Dowry Creek	Producer	AU
Boulder Creek	Producer	PGE AU AU CR
Last Chance Creek	Prospect	PGE CR
Dowry Creek	Past Producer	PGE_PT AU PGE_IR PGE_OS

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
Dowry Creek	Active?	PGE
Boulder Creek	Active?	PGE
Last Chance Creek	Active?	PGE

An index to PGE-Ni-Cr deposits and occurrences in selected mineral-occurrence databases (web-accessible database)

A compendium of references to previously published databases and database records that describe PGE, nickel, and chromium deposits and occurrences. These data show where to obtain more detailed information about each deposit or occurrence.

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Deposit name	Deposit type	Location
Dowry Creek	Past Producer	Alaska, United States

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.

Database Home

Sample ID	Sample source	Sample notes
BAT236	stream/river	stream
BAT237	stream/river	stream
BDG789	stream/river	stream
BDG790	stream/river	stream
BDG791	stream/river	stream
BDG792	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.

Database Home

Tract name	Deposit type	Geology
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.