Scientific data near [68.33842,-155.71305]

Search area extends approximately 4.5 km east-west and 12.1 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
North Slope	Borough
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Killik River B-5	1:63,360 Alaska quadrangle
Killik River	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Upper Colville River	hydrologic unit
190603	hydrologic accounting unit
Southeast Alaska	hydrologic subregion
Alaska	hydrologic region
Areas administered by US Federal agencies
National Petroleum Reserve In Alaska	Other
Other BLM	Type of land area
BLM	Federal land areas administered by BLM

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
bu	Unknown	Bedrock of unknown type or age or areas not mapped
JIPe	Sedimentary	Etivluk Group, undivided
Kof	Sedimentary	Okpikruak Formation and similar units
Mes	Sedimentary	Kurupa Sandstone
Mlgac	Sedimentary	Akmalik Chert and other black chert of the Lisburne Group
Mlgk	Sedimentary	Kuna Formation
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
QTs	Unconsolidated	Poorly consolidated surficial deposits

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
South NPR '77	M-D	South NPR '77 1931 line km with spacing 9.60 km over parts of AK
Killik River-Chandler L. S.	M-D	Killik River-Chandler L. S. 5407 line km with spacing 3.20 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-BR17	Zn-Pb-Ag veins
AK-BR23	Sedex Zn-Pb
AK-BR21	Sediment-hosted Cu
AK-BR20	Sandstone hosted Pb-Zn
AK-BR08	Mississippi Valley Type
AK-BR13	Placer Au
AK-BR22	Sedex Zn-Pb
AK-BR05	Kipushi Cu-Pb-Zn

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
Brooks-Northslope Mag	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
CHJ790	rock	sedimentary shale
CHJ791	rock	sedimentary shale
CHJ792	rock	sedimentary shale
CHJ793	rock	sedimentary shale
CHJ794	rock	sedimentary unspecified
CHJ795	rock	sedimentary unspecified
CHZ503	sediment
CHZ504	sediment
D363082	rock	sedimentary shale
D517164	rock	sedimentary unspecified
D517165	rock	sedimentary unspecified
D517166	rock	sedimentary unspecified
D517167	rock	sedimentary unspecified
D517190	rock	sedimentary unspecified
D517191	rock	sedimentary mudstone
D527081	rock	sedimentary chert
D527133	rock	sedimentary chert

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
7051498	1979-08-04	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7051499	1979-08-04	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
3051114	1979-08-04	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3051115	1979-08-04	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
CHJ790	sedimentary	shale
CHJ791	sedimentary	shale
CHJ792	sedimentary	shale
CHJ793	sedimentary	shale
CHJ794	sedimentary	unspecified
CHJ795	sedimentary	unspecified
D363082	sedimentary	shale
D517164	sedimentary	unspecified
D517165	sedimentary	unspecified
D517166	sedimentary	unspecified
D517167	sedimentary	unspecified
D517190	sedimentary	unspecified
D517191	sedimentary	mudstone
D527133	sedimentary	chert

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
Otuk Creek	Occurrence	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
Otuk Creek	Inactive	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
CHZ503	stream/river	reanalyzed NURE sample;; stream
CHZ504	stream/river	reanalyzed NURE sample;; 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
Brooks Range	porphyry copper	Proterozoic, Devonian, or Cretaceous grantitic intrusions in the Brooks Range.
Chukotka	porphyry copper	Early to Late Cretaceous volcanic and intrusive rocks composing island-arc, continental-arc, and collisional magmatic belts associated with the Chukotka microcontinent.
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.