Geothermal resource exploration assessment and data interpretation, Klamath Basin, Oregon: Swan Lake and Klamath Hills area

Conference · Sun Oct 01 04:00:00 EDT 1978

OSTI ID:6436234

Stark, M; Goldstein, N; Wollenberg, H; Strisower, B; Hege, M

A synthesis and preliminary interpretation of predominantly geophysical information relating to the Klamath Basin geothermal resource is presented. The Swan Lake Valley area, northeast of Klamath Falls, and the Klamath Hills area, south of Klamath Falls, are discussed in detail. Available geophysical data, including gravity, magnetic, electrical resistivity, microseismic, roving dipole resistivity, audio-magnetotelluric (AMT) and magnetotelluric (MT) data sets, are examined and reinterpreted for these areas. One- and two-dimensional modeling techniques are applied, and general agreement among overlapping data sets is achieved. The MT method appears well suited to this type of exploration, although interpretation is difficult in the complex geology. Roving dipole and AMT are useful in reconnaissance, while gravity and magnetics help in defining structure. For the Swan Lake Valley the data suggest buried electrically conductive zones beneath Meadow Lake Valley and Swan Lake, connected by a conductive layer at 1 kilometer depth. In the Klamath Hills area, the data suggest a conductive zone centered near the northwestern tip of Stukel Mountain, associated with a concealed northeast-trending cross-fault. Another conductive zone appears near some producing hot wells at the southwestern edge of the Klamath Hills. These conductive zones may represent geothermal reservoirs. Specific types of follow-up work are recommended for each target area.

• Research Organization: California Univ., Berkeley (USA). Lawrence Berkeley Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6436234
• Report Number(s): LBL-8186(Draft); CONF-781190-1
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150301* -- Geothermal Exploration & Exploration Technology-- Geophysical Techniques & Surveys
DATA ANALYSIS
ELECTRICAL SURVEYS
ELECTROMAGNETIC SURVEYS
EXPLORATION
GEOLOGIC FAULTS
GEOLOGIC STRUCTURES
GEOPHYSICAL SURVEYS
GEOTHERMAL EXPLORATION
GEOTHERMAL SYSTEMS
GRAVITY SURVEYS
KGRA
MAGNETOTELLURIC SURVEYS
NORTH AMERICA
ONE-DIMENSIONAL CALCULATIONS
OREGON
PACIFIC NORTHWEST REGION
SEISMIC SURVEYS
TWO-DIMENSIONAL CALCULATIONS
USA