by Scott T. Hector
Paul Graham Drilling Company
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ABSTRACT
This paper provides a unique look at the Suisun Bay Sub-Basin, which has made 350 Bcf of gas from primarily anticlinal traps located in a basin bounded by strike-slip faults. The Green Valley-Concord fault system forms that western edge of the basin, the Pittsburg-Kirby Hills fault system marks the eastern edge. The paper studies the orientation of the fold and thrust structures and their spatial relationships, and proposed models for the thrust system. The study of possible seismicity in the same area as the 1889 Magnitude 6 Pittsburg-Antioch earthquake, was funded by the U.S. Geological Survey National Earthquake Hazards Reduction Program. It was published in 1999.
About the Speakers
Jeffrey R. Unruh, Senior Author, is a geologist and partner in the firm of William Lettis and Associates, Walnut Creek, CA. He graduated with the
Ph.D. in Geology from U.C. Davis in 1990. Jeff is also an associate research geologist at the University of California at Davis. His primary
interests are structural geology, neotectonics and seismic hazard assessment.
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