Regional tectonic stress near the San Andreas fault in central and southern California

Details Regional tectonic stress near the San Andreas fault in central and southern California Regional tectonic stress near the San Andreas fault in central and southern California

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3115s11t&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 15, CiteID L15S11

Physics

37

Structural Geology: Fractures And Faults, Structural Geology: Mechanics, Tectonophysics: Dynamics, Seismotectonics, Tectonophysics: Stresses-Crust And Lithosphere

Scientific paper

Throughout central and southern California, a uniform NNE-SSW direction of maximum horizontal compressive stress is observed that is remarkably consistent with the superposition of stresses arising from lateral variations in lithospheric buoyancy in the western United States, and far-field Pacific-North America plate interaction. In central California, the axis of maximum horizontal compressive stress lies at a high angle to the San Andreas fault (SAF). Despite relatively few observations near (+/-10 km) the fault, observations in the greater San Francisco Bay area indicate an angle of as much as 85°, implying extremely low fault strength. In southern California, observations of stress orientations near the SAF are rotated slightly counter-clockwise with respect to the regional field. Nevertheless, we observe an approximately constant angle between the SAF and the maximum horizontal stress direction of 68 +/- 7° along ~400 km of the fault, indicating that the SAF has moderately low frictional strength in southern California.

Affiliated with

Also associated with

No associations

Rating

Regional tectonic stress near the San Andreas fault in central and southern California does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Regional tectonic stress near the San Andreas fault in central and southern California, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Regional tectonic stress near the San Andreas fault in central and southern California will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1010902