Wolf River Batholith

Region Central, North Central
Mineral systems
Deposit types
Other minerals

Information leading to the delineation of this focus area

Basis for focus area Anorogenic rapakivi granite cut by pegmatites; epizonal plutonic complex (1484±2 to 1468±4 Ma).
Identified resources Unknown.
Production Unknown.
Status Unknown.
Estimated resources No data.
Geologic maps Sims (1992), scale 1:500,000.
Geophysical data Inadequate aeromagnetic and aeroradiometric coverage.
Favorable rocks and structures Epizonal plutonic complex (1484±2 to 1468±4 Ma) composed of cogenetic anorthosite, monzonite, and rapakivi granite intrusions. Batholith has alkaline affinities. Late stage pegmatite/aplite development.
Deposits No data.
Evidence from mineral occurrences No data.
Geochemical evidence No data.
Geophysical evidence No data.
Evidence from other sources No data.
Cover thickness and description Eastern part of the Wolf River is hidden by overlying Paleozoic rocks; other parts are concealed by glacial deposits. Outcrops mainly in road cuts, quarries, and rare natural exposures.
Authors Laurel G. Woodruff.
New data needs New mapping, high resolution geophysics.
Geologic mapping and modeling needs Need new geologic mapping.
Geophysical survey and modeling needs High resolution aeromagnetic and aeroradiometric coverage needed and more ground gravity data.
Digital elevation data needs Lidar adequate.