Imperial Valley Fault Compilation

Abstract

A detailed compilation of faults in the Imperial Valley, California has been prepared as part of a study to assess environmental effects of geothermal development. This compilation concentrates on the sedimentary areas of the valley and synthesizes information from many published and previously unpublished sources onto a 1:250,000 scale map and a corresponding table. The table is keyed to the map and references for each fault location, discrepant location, most recent movement, and evidence of faulting are included. The resulting map gives a graphic display of the complexity of faulting in the valley and supports the implication that more detailed fault studies in Imperial Valley would reveal many more concealed fault traces.