Cuttingsville stock

Region East, Northeast
Mineral systems
Deposit types
Other minerals

Information leading to the delineation of this focus area

Basis for focus area Cretaceous alkalic pluton (~98 Ma) is locally strongly altered and mineralized (Au, Ag, As, Mo, W).
Identified resources Historical production of copperas (iron sulfide) for tanning.
Production Unknown.
Status Past mining.
Estimated resources Unknown.
Geologic maps Ratcliffe and others (2011), scale 1;100,000; Burton and Ratcliffe (2000), scale 1:24,000.
Geophysical data Inadequate aeromagnetic and aeroradiometric coverage.
Favorable rocks and structures Cretaceous syenite stocks; White Mountain Plutonic Series.
Deposits Copperas Hill mine (MRDS dep_id: 10100274).
Evidence from mineral occurrences MRDS.
Geochemical evidence Ore at Copperas Hill mine was 40% Fe, 25% S, 3.5% Mn, 0.2% Zn, 0.2% Cu, 0.4 oz/t Au and 0.03 oz/t Ag (Slack, 1990).
Geophysical evidence Magnetic and gravity data in Daniels (1990).
Evidence from other sources Unknown.
Cover thickness and description Exposed bedrock or glacial till and lacustrine deposits generally less than 10-50 m.
Authors Gregory J. Walsh, Gilpin R. Robinson, Jr.
New data needs Mapping.
Geologic mapping and modeling needs 1:24,000 scale mapping is available in USGS preliminary open-file report format, but could be updated (Burton and Ratcliffe, 2000).
Geophysical survey and modeling needs High resolution aeromagnetic and aeroradiometric coverage to image mafic rock, associated structures, and alteration. Electromagnetic methods may help image sulfides.
Digital elevation data needs Lidar adequate.