| Basis for focus area |
Pegmatite deposits that do not fall into larger districts are within this Parker Mountain district (Bradley and others, 2016). |
| Identified resources |
Historical production of feldspar and mica. |
| Production |
Unknown. |
| Status |
Past mining. |
| Estimated resources |
Unknown. |
| Geologic maps |
Stewart (1961), scale 1:62,500; Lyons and others (1997), scale 1:250,000; Kerwin (2003); scale 1:48,000. |
| Geophysical data |
Inadequate Rank 4 aeromagnetic and Rank 5 aeroradiometric coverage. |
| Favorable rocks and structures |
Pegmatite. |
| Deposits |
Parker Mountain mine (MRDS dep_id: 10296151). |
| Evidence from mineral occurrences |
MRDS. |
| Geochemical evidence |
Favorable mineralogy and rock type. |
| Geophysical evidence |
Unknown. |
| Evidence from other sources |
Unknown. |
| Comments |
The Parker Mountain pegmatite is from 5 to 40 feet wide and consists of discontinuous graphic granite. Mined for feldspar with mica as a byproduct. Other minerals include beryl, cassiterite, columbite, and spodumene. |
| Cover thickness and description |
Exposed at the surface. |
| Authors |
Nora K. Foley, Dwight C. Bradley, Anjana K. Shah, Gregory J. Walsh, Bernard E. Hubbard. |
| New data needs |
Mapping. |
| Geologic mapping and modeling needs |
Detailed mapping of pegmatite bodies, geophysics may not be useful for pegmatites. |
| Geophysical survey and modeling needs |
High resolution aeromagnetic and aeroradiometric data to assist with framework geology such as structural features and contacts. |
| Digital elevation data needs |
Lidar is adequate. |
