Scientific data near [59.49360,-154.36330]

Search area extends approximately 1.1 km east-west and 2.2 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
Iliamna B-4	1:63,360 Alaska quadrangle
Iliamna	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Lake Iliamna	hydrologic unit
190302	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

Database Home

Map symbol	Lithology	Unit name
TKgd	Igneous - Plutonic	Granodiorite to quartz monzodiorite
Tmv	Igneous - Volcanic	Meshik Volcanics and similar rock units

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.

Database Home

ID	Data type	Description
Illiamna	M-D	Illiamna 9487 line km with spacing 1.60 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).

Database Home

Tract	Deposit Type	Mineralization age
AK-SW14	Placer Au
AK-SW17	Cu (Au) skarn
AK-SW18	Zn-Pb skarn
AK-SW04	Epithermal vein, generic
AK-SW12	Porphyry Cu, BC-Ak type
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.

Database Home

Domain	Crust type	Region
Peninsular-Iliamna	Oceanic arc	Alaska

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.

Database Home

Sample ID	Date collected	Sample type
3020184	1977-08-25	Natural-pond (or lake in Alaska) water sample acidified to a pH of less than or equal to 1 with reagent-grade nitric acid.

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
Western Alaska Range	porphyry copper	Cretaceous porphyry prospects along the Kahiltna Basin-Peninsula terrane boundary
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.