Drew Hill antimony prospect

Region East, Northeast
Mineral systems
Deposit types
Other minerals

Information leading to the delineation of this focus area

Basis for focus area MRDS dep_id: 10013734. This is a point feature that also shows up in the Aroostook County manganese focus area in the Houlton quadrangle map (Pavlides, 1971).
Identified resources Unknown.
Production Unknown.
Status Unknown.
Estimated resources Unknown.
Geologic maps Pavlides (1971), scale 1:62,500.
Geophysical data Inadequate Rank 4 and 5 aeromagnetic coverage and Rank 5 aeroradiometric coverage; Some 1950s coverage analyzed by Pavlides and Milton (1962).
Favorable rocks and structures Sulfide deposits in the Cary Mills Formation (Pavlides, 1971; Houston, 1956). Site explored by drilling and trenching but no ore-grade mineralization found (Pavlides, 1971).
Deposits Drew Hill prospect (MRDS dep_id: 10242664).
Evidence from mineral occurrences MRDS.
Geochemical evidence Favorable mineralogy and rock type.
Geophysical evidence Unknown.
Evidence from other sources Unknown.
Comments Deposits in this area are part of the Aroostook manganese province, which contains one of the three largest low-grade reserves of Mn in the United States (Pavlides, 1971). Major Lake George Sb deposit about 45 km to the east across the international border in New Brunswick (Scratch and others, 1984; Seal and others, 2017).
Cover thickness and description Variable limited cover and glacial cover estimated at less than 2-50 m.
Authors Gregory J. Walsh, John F. Slack.
New data needs Geologic mapping at 1:24,000 scale, and airborne geophysics.
Geologic mapping and modeling needs Detailed modern 1:24,000 scale mapping and geochemical sampling.
Geophysical survey and modeling needs High resolution aeromagnetic and aeroradiometric coverage.
Digital elevation data needs Lidar complete.