Scientific data near [58.55222,-134.75972]

Search area extends approximately 8.9 km east-west and 17.1 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Juneau	Borough
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Juneau C-3	1:63,360 Alaska quadrangle
Juneau	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Lynn Canal	hydrologic unit
190103	hydrologic accounting unit
Arctic Slope	hydrologic subregion
Alaska	hydrologic region
Areas administered by US Federal agencies
Tongass National Forest	National Forest
National Forest FS	Type of land area
FS	Federal land areas administered by FS

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
g	Unconsolidated	Glaciers
Kgb	Igneous - Plutonic	Gabbro and diorite of southeast Alaska
KJgn	Sedimentary	Gravina-Nuzotin unit
KJgv	Sedimentary	Volcanic rocks of the Gravina-Nutzotin belt
MzPzss	Metamorphic	Metasedimentary and minor metavolcanic rocks along the west side of the Coast plutonic complex of Brew and Morrell (1979b)
MzPzss	Metamorphic	Metasedimentary and minor metavolcanic rocks along the west side of the Coast plutonic complex of Brew and Morrell (1979b)
MzPzsv	Metamorphic	Metavolcanic rocks west of the Coast plutonic complex of Brew and Morrell (1979b)
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
TKts	Igneous - Plutonic	Foliated tonalite sill of Coast plutonic complex of Brew and Morrell (1979b)

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
Juneau '82	M-D	Juneau '82 6598 line km with spacing 1.60 km over parts of AK
Juneau	M/R-D	Juneau 1319 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-SE03	Low-sulfide Au-quartz veins

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
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
C179132	sediment
C179437	sediment
CBR179	rock	metamorphic phyllite-slate
CBR180	rock	igneous diorite
CBR181	rock	igneous intermediate
CBR182	rock	metamorphic phyllite-slate
CBR183	rock	sedimentary sandstone
CBR184	rock	metamorphic phyllite-slate
CCJ642	rock	metamorphic phyllite-slate
CCJ643	rock	metamorphic phyllite-slate
CCJ644	rock	metamorphic schist
CCJ645	rock	metamorphic schist
CCJ646	rock	metamorphic phyllite-slate
CCJ647	rock	metamorphic phyllite-slate
CCJ648	rock	metamorphic unspecified
CCJ649	rock	metamorphic unspecified
CCJ650	rock	igneous felsic
CCJ651	rock	igneous felsic
CDB250	rock	igneous intermediate
CDB251	rock	igneous intermediate
CDB264	rock	igneous felsic
CDB265	rock	igneous felsic
CDB338	sediment
CDB342	sediment
CDB343	sediment
CDB374	rock	metamorphic unspecified
CDB375	rock	metamorphic unspecified
CDB376	rock	igneous felsic
CDB377	rock	igneous felsic
CDB380	rock	metamorphic gneiss
CDB381	rock	metamorphic gneiss
CDB382	rock	metamorphic schist
CDB383	rock	metamorphic schist
CDB390	rock	metamorphic gneiss
CDB391	rock	metamorphic gneiss
CDB404	rock	metamorphic phyllite-slate
CDB405	rock	metamorphic phyllite-slate
CDB666	rock	metamorphic unspecified
CDB667	rock	metamorphic phyllite-slate
CFK430	sediment
CFK431	sediment
CGK519	concentrate	panned C3 fraction
CGK520	concentrate	panned C3 fraction
D356959	rock	metamorphic metagraywacke
D356961	rock	metamorphic metagraywacke
D356965	rock	metamorphic phyllite
D356978	rock	metamorphic metagraywacke
D356988	rock	metamorphic phyllite
D356990	rock	metamorphic phyllite
EQC523	sediment
EQC524	sediment
EQC525	sediment
EQC649	concentrate	panned C3 fraction
EQC650	concentrate	panned C3 fraction
EQC651	concentrate	panned C3 fraction
LCG058	rock	metamorphic unspecified
LCG059	rock	metamorphic unspecified
LCG074	rock	igneous intermediate
LCG075	rock	igneous intermediate
LCG079	sediment
LCG080	sediment
M131750	rock	igneous diorite
M136763	rock	metamorphic gneiss

National geochemical survey database

National-scale geochemical analysis of stream sediments and soils in the US, from existing data, reanalysis of existing samples, and new sampling. Goal for sample density is one per 289 square km.

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Sample ID	Material	Source
C-179132	Sediment	Pond, Natural, wet
C-179437	Sediment	Stream, Wet

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
7019936	1979-09-16	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7019937	1979-09-16	Wet stream sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7019938	1979-09-16	Wet natural-pond (or lake in Alaska) sediment sample dried at less than or equal to 100øC and sieved to -100 mesh through stainless steel sieves.
7019939	1979-09-16	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
3021556	1979-09-16	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3021557	1979-09-16	Stream water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3021558	1979-09-16	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.
3021559	1979-09-16	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
CBR179	metamorphic	phyllite-slate
CBR180	igneous	intermediate
CBR181	igneous	intermediate
CBR182	metamorphic	phyllite-slate
CBR183	sedimentary	sandstone
CBR184	metamorphic	phyllite-slate
CCJ642	metamorphic	phyllite-slate
CCJ643	metamorphic	phyllite-slate
CCJ644	metamorphic	schist
CCJ645	metamorphic	schist
CCJ646	metamorphic	phyllite-slate
CCJ647	metamorphic	phyllite-slate
CCJ648	metamorphic	unspecified
CCJ649	metamorphic	unspecified
CCJ650	igneous	felsic
CCJ651	igneous	felsic
CDB250	igneous	intermediate
CDB251	igneous	intermediate
CDB264	igneous	felsic
CDB265	igneous	felsic
CDB374	metamorphic	unspecified
CDB375	metamorphic	unspecified
CDB376	igneous	felsic
CDB377	igneous	felsic
CDB380	metamorphic	gneiss
CDB381	metamorphic	gneiss
CDB382	metamorphic	schist
CDB383	metamorphic	schist
CDB390	metamorphic	gneiss
CDB391	metamorphic	gneiss
CDB404	metamorphic	phyllite-slate
CDB405	metamorphic	phyllite-slate
CDB666	metamorphic	unspecified
CDB667	metamorphic	phyllite-slate
D356959	metamorphic	metagraywacke
D356961	metamorphic	metagraywacke
D356965	metamorphic	phyllite
D356978	metamorphic	metagraywacke
D356988	metamorphic	phyllite
D356990	metamorphic	phyllite
LCG058	metamorphic	unspecified
LCG059	metamorphic	unspecified
LCG074	igneous	intermediate
LCG075	igneous	intermediate
M131750	igneous	diorite
M136763	metamorphic	gneiss

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
Eagle River Mine	Past Producer	AU PB CU ZN
Cascade Prospect	Occurrence	AU PB ZN
Mitchell and Mcpherson Prospect	Occurrence	AU PB
Oleson Prospect	Occurrence	AU
Oleson	Prospect	AU
Mitchell-Mcpherson	Prospect	AU
Eagle River	Past Producer	AU CU PB AG ZN
Kodzoff Pit	Past Producer	SDG
Herbert	Prospect	AU
Mountain Queen	Prospect	AU

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
Puzzler	Inactive	Ag;Au
Cascade	Inactive	Ag;Au
Noonday	Inactive	Ag;Au
Rex	Inactive	Au
Mt. Queen; Westover	Inactive	Au
Eagle River; Amalga	Active	Ag;Au
Oleson	Inactive	Au
Mitchell and McPherson	Inactive	Ag;Au

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
C179132	surface
C179437	surface
CDB338	stream/river	stream
CDB342	stream/river	stream
CDB343	stream/river	stream
CFK430	stream/river	stream
CFK431	stream/river	stream
EQC523	stream/river	stream
EQC524	stream/river	stream
EQC525	stream/river	stream
LCG079	stream/river	stream
LCG080	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
CGK519	stream/river	stream
CGK520	stream/river	stream
EQC649	stream/river	stream
EQC650	stream/river	stream
EQC651	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.