Scientific data near [55.85300,-159.49700]

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

Geographic context

Counties, states, countries, continents, or oceans
Lake and Peninsula	Borough
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Stepovak Bay D-5	1:63,360 Alaska quadrangle
Stepovak Bay	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Shelikof Strait	hydrologic unit
190207	hydrologic accounting unit
Northwest Alaska	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

Database Home

Map symbol	Lithology	Unit name
Tmv	Igneous - Volcanic	Meshik Volcanics and similar rock units
w		Water

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.

Database Home

Domain	Crust type	Region
Peninsular-Talkeetna	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.

Database Home

Lab ID	Sample medium	Description
CGD041	rock	igneous dacite
CGD042	rock	igneous volcanic
CGD043	rock	sedimentary siltstone
CGD081	rock	igneous breccia
CGJ884	rock	igneous breccia

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"

Database Home

Sample ID	Rock type	Rock name
CGD041	igneous	dacite
CGD042	igneous	unspecified
CGD043	sedimentary	unspecified
CGD081	igneous	unspecified
CGJ884	igneous	unspecified

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.

Database Home

Site name	Development	Commodities
Unnamed (northwest shore of Road Island)	Occurrence	AU 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.

Database Home

Site	Status	Commodities
Unnamed (northwest shore of Road...	Inactive	Au;Cu

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.