Basis for focus area |
Elevated REE abundances from a sample of a rhyolitic dike member (Burton and others, 1995) suggest potential source of critical mineral commodities. |
Identified resources |
Unknown. |
Production |
Unknown. |
Status |
Unknown. |
Estimated resources |
Unknown. |
Geologic maps |
Horton and others (2017), scale 1:500,000; Fauth (1977), scale 1:24,000; Brezinski (2004a, b, c, 2009), scale 1:24,000; Brezinski and Fauth (2005, 2009), scale 1:24,000; Southworth and others (2002), scale 1:100,000. |
Geophysical data |
Inadequate Rank 3 to 4 aeromagnetic and Rank 4 aeroradiometric coverage. |
Favorable rocks and structures |
Rhyolite dike. |
Deposits |
None. |
Evidence from mineral occurrences |
Potential from mineral system/deposit type. |
Geochemical evidence |
Elevated REE in rhyolitic dike member (Burton and others, 1995). |
Geophysical evidence |
Unknown. |
Evidence from other sources |
Unknown. |
Cover thickness and description |
Variable cover and saprolite, some urban areas. |
Authors |
William Junkin, Rebecca Kavage Adams, David K. Brezinski. |
New data needs |
Geophysical data, geologic mapping, and geochemical analyses; lidar. |
Geologic mapping and modeling needs |
Some 1:24,000 scale mapping exists, but incomplete. |
Geophysical survey and modeling needs |
High resolution aeromagnetic and aeroradiometric coverage. |
Digital elevation data needs |
Lidar inadequate. |