In this section
@article{Gold:2015:10.1002/2015JB012004,
author = {Gold, PO and Behr, WM and Rood, D and Sharp, WD and Rockwell, TK and Kendrick, K and Salin, A},
doi = {10.1002/2015JB012004},
journal = {Journal of Geophysical Research. Solid Earth},
pages = {5639--5663},
title = {Holocene geologic slip rate for the Banning strand of the southern San Andreas Fault, southern California},
url = {http://dx.doi.org/10.1002/2015JB012004},
volume = {120},
year = {2015}
}
TY - JOUR
AB - Northwest directed slip from the southern San Andreas Fault is transferred to the Mission Creek, Banning, and Garnet Hill fault strands in the northwestern Coachella Valley. How slip is partitioned between these three faults is critical to southern California seismic hazard estimates but is poorly understood. In this paper, we report the first slip rate measured for the Banning fault strand. We constrain the depositional age of an alluvial fan offset 25 ± 5 m from its source by the Banning strand to between 5.1 ± 0.4 ka (95% confidence interval (CI)) and 6.4 + 3.7/−2.1 ka (95% CI) using U-series dating of pedogenic carbonate clast coatings and 10Be cosmogenic nuclide exposure dating of surface clasts. We calculate a Holocene geologic slip rate for the Banning strand of 3.9 + 2.3/−1.6 mm/yr (median, 95% CI) to 4.9 + 1.0/−0.9 mm/yr (median, 95% CI). This rate represents only 25–35% of the total slip accommodated by this section of the southern San Andreas Fault, suggesting a model in which slip is less concentrated on the Banning strand than previously thought. In rejecting the possibility that the Banning strand is the dominant structure, our results highlight an even greater need for slip rate and paleoseismic measurements along faults in the northwestern Coachella Valley in order to test the validity of current earthquake hazard models. In addition, our comparison of ages measured with U-series and 10Be exposure dating demonstrates the importance of using multiple geochronometers when estimating the depositional age of alluvial landforms.
AU - Gold,PO
AU - Behr,WM
AU - Rood,D
AU - Sharp,WD
AU - Rockwell,TK
AU - Kendrick,K
AU - Salin,A
DO - 10.1002/2015JB012004
EP - 5663
PY - 2015///
SN - 2169-9313
SP - 5639
TI - Holocene geologic slip rate for the Banning strand of the southern San Andreas Fault, southern California
T2 - Journal of Geophysical Research. Solid Earth
UR - http://dx.doi.org/10.1002/2015JB012004
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000362224100014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/29647
VL - 120
ER -