Aeromagnetic measurements in the Cascade Range and Modoc Plateau of northern California. Report on work done from December 1, 1980-May 31, 1981

Technical Report · Fri Jan 01 00:00:00 EST 1982

DOI:https://doi.org/10.2172/5643375· OSTI ID:5643375

Couch, R; Gemperle, M

Spectral analysis of aeromagnetic data collected over north-central California during the summer of 1980 aided in determining magnetic-source bottom depths beneath the survey area. Five regions of shallow magnetic source bottom depths were detected: (1) Secret Spring Mountain and National Lava Beds Monument area; (2) the Mount Shasta area; (3) the Eddys Mountain area; (4) the Big Valley Mountains area; and (5) an area northeast of Lassen Peak. Except for the Eddys Mountain area, all regions exhibiting shallow depths are suggested to be due to elevated Curie-point isotherms. Deeper magnetic source bottom depths were mapped throughout the remainder of the study area, with depths greater than 9 km BSL indicated beneath Lassen Peak and greater than 11 km BSL indicated beneath the Western Cascades, Eastern Klamath Mountains, and Great Valley.

• Research Organization: Oregon State Univ., Corvallis, OR (United States)
• OSTI ID: 5643375
• Report Number(s): USGS-OFR-82-933; ON: DE84900455
• Resource Relation: Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
CALIFORNIA
MAGNETIC SURVEYS
AERIAL SURVEYING
CASCADE MOUNTAINS
EXPERIMENTAL DATA
HEAT FLOW
MOUNTAINS
DATA
FEDERAL REGION IX
GEOPHYSICAL SURVEYS
INFORMATION
NORTH AMERICA
NUMERICAL DATA
SURVEYS
USA
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