DOI-BLM-NV-C010-2012-0070-CX

NEPA Document Collection for: DOI-BLM-NV-C010-2012-0070-CX
CX at Dixie Valley Geothermal Area for Geothermal/Exploration

CX for Magnetotelluric Survey at Dixie Valley for Geothermal/Exploration

Proposed Action

The US Navy Geothermal Program Office is proposing to conduct geophysical surveys in southern Dixie Valley. The proposed action consists of a 2-D seismic survey and and MT survey. The seismic survey would involve the placement of geophones into the ground up to 1 foot deep and up to woo feet apart along the proposed transects (see map). Cables would be laid across the surface to connect the geophones to a data logger. A low impact vibrator truck equipped with large balloon tires to minimize impacts wold be used to generate the energy source. The vibrator trucks run in a series spaced up to 100 feet along the seismic transects. Up to three vibrator trucks may be drive at a time down the seismic transects. Seismic energy is generated through a plate attached to the trucks that is lowered to the ground, vibrated for a bout 30 sections approximately 30 feet. The plate may leave a temporary 1/4 inch depression in the earth. No vibrator trucks will enter the WSA except along cherry-stemmed roads. In that case trucks will be limited to the existing disturbance of the cherry-stemmed roads. The MT survey would be conducted using three cylindrical magnetic sensors that are three feet in length and wold be buried up to one foo oriented N-S, E-W, and vertically in the ground as shallow as possible. Two additional electrical sensors would be buried no deeper than one foot. The total surface disturbance per site would be less than one meter diameter.

Data Completion Notes

No document available to further populate.