Light detection and ranging (LiDAR) data and field observations were used to create a new tectonogeomorphic strip map along the San Andreas Fault from Wrightwood 47 km southeast to Highland. Three hundred and thirty one geomorphic features were identified and the displacements of 23 offset and deflected streams were measured using Quick Terrain Modeler (QTM). Offsets cluster around 10-50 m, and only one offset is smaller than 5 m, and a few larger offsets (100 m-200 m).
The primary purpose of this project, besides creating the strip map, was to determine how slip is transferred between the northern San Jacinto fault and Mojave-San Bernardino segments in the Cajon Pass area. Previously published slip rate data suggests slip transfer from the San Jacinto fault to the San Andreas fault between Badger Canyon and Cajon Creek at Cajon Pass area. However, there are no significant changes in offset amounts along the northern end of the San Bernardino segment, and the most likely location for slip transfer would be Cajon Pass.
|Commitee:||Kelty, Thomas K., McGill, Sally|
|School:||California State University, Long Beach|
|School Location:||United States -- California|
|Source:||MAI 52/03M(E), Masters Abstracts International|
|Subjects:||Geographic information science, Geology, Geomorphology|
|Keywords:||Cajon Pass, California, Field observation, Light detection and ranging (LiDAR), San Andreas Fault, San Bernardino, Tectonogeomorphic strip map|
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