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dc.contributor.authorRyerson, Frederick J.en
dc.contributor.authorVan der Woerd, Jérômeen
dc.contributor.authorKlinger, Yannen
dc.contributor.authorSieh, Kerryen
dc.contributor.authorTapponnier, Paulen
dc.contributor.authorMériaux, Anne-Sophieen
dc.identifier.citationJérôme, v. d. W., Klinger, Y., Sieh, K., Tapponnier, P., Ryerson, F. J., & Mériaux, A. S. (2006). Long-term slip rate of the southern San Andreas Fault from 10Be-26Al surface exposure dating of an offset alluvial fan. Journal of Geophysical Research, 111.en
dc.description.abstractWe determine the long-term slip rate of the southern San Andreas Fault in the southeastern Indio Hills using 10Be and 26Al isotopes to date an offset alluvial fan surface. Field mapping complemented with topographic data, air photos and satellite images allows precise determination of piercing points across the fault zone that are used to measure an offset of 565 ± 80 m. A total of 26 quartz-rich cobbles from three different fan surfaces were collected and dated. The tight cluster of nuclide concentrations from 19 samples out of 20 from the offset fan surface implies a simple exposure history, negligible prior exposure and erosion, and yields an age of 35.5 ± 2.5 ka. The long-term slip rate of the San Andreas Fault south of Biskra Palms is thus 15.9 ± 3.4 mm/yr. This rate is about 10 mm/yr slower than geological (0–14 ka) and short-term geodetic estimates for this part of the San Andreas Fault, implying changes in slip rate or in faulting behavior. This result puts new constraints on the slip rate of the San Jacinto and on the Eastern California Shear Zone for the last 35 kyr. Our study shows that more sites along the major faults of southern California need to be targeted to better constrain the slip rates over different timescales.en
dc.format.extent17 p.en
dc.relation.ispartofseriesJournal of geophysical researchen
dc.rights© 2006 American Geophysical Union. This paper was published in Journal of Geophysical Research and is made available as an electronic reprint (preprint) with permission of American Geophysical Union. The paper can be found at the following official URL: One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.en
dc.subjectDRNTU::Science::Geology::Volcanoes and earthquakesen
dc.titleLong-term slip rate of the southern San Andreas Fault from 10Be-26Al surface exposure dating of an offset alluvial fanen
dc.typeJournal Articleen
dc.description.versionPublished versionen
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