Scientific data near [45.32760,-70.18440]

Search area extends approximately 2.2 km east-west and 3.2 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Somerset	county
Maine	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Basin Mountain	quadrangle 1:24,000 scale
Flagstaff Lake	quadrangle 1:100,000 scale
Sherbrooke	quadrangle 1:250,000 scale
Watershed boundaries (USGS hydrologic units)
Dead	hydrologic unit
Kennebec	hydrologic accounting unit
Kennebec	hydrologic subregion
New England	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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Unit	State	Lithology
Cambrian Hurricane Mountain Formation	ME	Cambrian
Cambrian Hurricane Mountain Formation, metagabbro	ME	Cambrian
Cambrian Hurricane Mountain Formation, metapyroxenite	ME	Cambrian
Cambrian Jim Pond Formation	ME	Cambrian

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
Western Maine	M-Dz	Western Maine 1931 line km with spacing 3.20 km over parts of ME
Sherbrooke	M/R-D	Sherbrooke 1029 line km with spacing 9.60 km over parts of ME-NH-VT
Sherbrooke-Lewiston '80	M-D	Sherbrooke-Lewiston '80 3498 line km with spacing 0.80 km over parts of ME

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
NA02	Porphyry Cu	Ordovician - Devonian
NA14	Massive sulfide, kuroko	Ordovician

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
Ganderia	Passive margin	Southeastern Laurentia and Appalachians

Asbestos mines, prospects, and occurrences in the US

Location and mineralogical characteristics of former mines, prospects, and occurrences of asbestos in the continental US. No asbestos producing mines are currently active. Data here are drawn from several previously published reports.

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Deposit name	Deposit type	Location
Stony Brook Mountain serpentine	occurrence

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
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.