Paleoseismic Investigations Of The Northern San Andreas Fault At The Vedanta Site Marin County California
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Paleoseismic Investigations Of The Northern San Andreas Fault At The Vedanta Site Marin County California
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Author : Nelson Timothy Hall
language : en
Publisher:
Release Date : 1994
Paleoseismic Investigations Of The Northern San Andreas Fault At The Vedanta Site Marin County California written by Nelson Timothy Hall and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Faults (Geology) categories.
Paleoseismic And Geoarchaeologic Investigations Of The Northern San Andreas Fault Fort Ross State Historic Park California
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Author :
language : en
Publisher:
Release Date : 1993
Paleoseismic And Geoarchaeologic Investigations Of The Northern San Andreas Fault Fort Ross State Historic Park California written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Archaeological geology categories.
U S Geological Survey Open File Report
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Author :
language : en
Publisher:
Release Date : 1992
U S Geological Survey Open File Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Geological surveys categories.
National Earthquake Hazards Reduction Program Summaries Of Technical Reports Volume Xxxiii
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Author :
language : en
Publisher:
Release Date : 1992
National Earthquake Hazards Reduction Program Summaries Of Technical Reports Volume Xxxiii written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Earthquake hazard analysis categories.
Investigation Of The Late Quaternary Slip Rate Of The Northern San Andreas Fault At The Vedanta Wind Gap Marin County California
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Author : Tina M. Niemi
language : en
Publisher:
Release Date : 1991
Investigation Of The Late Quaternary Slip Rate Of The Northern San Andreas Fault At The Vedanta Wind Gap Marin County California written by Tina M. Niemi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Geology, Stratigraphic categories.
Paleoseismic Studies Of The Northern San Andreas Fault At Vedanta Marsh Site Olema California
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Author : Hongwei Zhang
language : en
Publisher:
Release Date : 2005
Paleoseismic Studies Of The Northern San Andreas Fault At Vedanta Marsh Site Olema California written by Hongwei Zhang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Faults (Geology) categories.
The northern San Andreas fault (SAF) ruptured in 1906 and generated the Great San Francisco Earthquake. This study involves collection and interpretation of paleoseismic data from the North Coast segment of the norther SAF at Vedanta marsh, Olema, California, to determine the timing of prehistoric large earthquakes, coseismic slips, and earthquake recurrence on this fault segment. These important parameters will test the existing earthquake models and add new data to the San Francisco Bay Area earthquake probability analysis. Late Holocene sediments deposited at Vedanta marsh preserve a continuous record of prehistoric earthquakes. Excavations into the marsh provided exposure of the sediments across the SAF zone. Well-defined marsh stratigraphy and abundant in situ organic material allow the determination of the first long, high-resolution, event-by-event record of earthquakes for the northern SAF. Evidence for twelve earthquakes, including the 1906 earthquake, have been identified from the main fault zone based on fault outward splays, fault upward termination, fissures, colluvial wedges, and soft-sediment deformation. All of these features occurred since the deposition of a unit that is approximately 3000 years old. The age of eleven pre-1906 seismic events are well bracketed by radiocarbon dates and age modeling using the OxCal radiocarbon analysis program. The average recurrence interval at the Vedanta site is ~ 250 years. However, individual recurrence intervals are quite irregular, ranging from as short as 53 years to as long as 605 years. From comparisons with other sites on the northern SAF, I interpret four pre-1906 events may have ruptured the entire North Coast segment, including earthquakes in the following ranges: AD 1670 - 1740; AD 1290 - 1380; AD 1100 - 1165; and AD 650 -710. A buried paleochannel had been right-laterally offset 7.8 - 8.3 m by coseismic slip of the 1906 and the penultimate earthquakes. Historical record of the 1906 coseismic slip measured near the excavation site was ~ 5 m. If we assume 5 m of 1906 slip at the marsh site, then the coseismic slip of the penultimate event is between 2.8 - 3.3 m. Timing (AD 1670 - 1740) and coseismic slip of the penultimate event indicate that the northern SAF may rupture in sequences of closely timed earthquakes on shorter segments, and does not support the assumption that the fault has failed as a single, long rupture similar to 1906 in mid 1600s.
Paleoseismic Investigations Of The San Andreas Fault Old Canada Road Site San Mateo County California
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Author : Robert H. Wright
language : en
Publisher:
Release Date : 1999
Paleoseismic Investigations Of The San Andreas Fault Old Canada Road Site San Mateo County California written by Robert H. Wright and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Paleoseismology categories.
Investigation Of The Late Quaternary Slip Rate Of The Northern San Andreas Fault At The Vedanta Wind Gap Marin County California
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Author : Nelson Timothy Hall
language : en
Publisher:
Release Date : 1989
Investigation Of The Late Quaternary Slip Rate Of The Northern San Andreas Fault At The Vedanta Wind Gap Marin County California written by Nelson Timothy Hall and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Geology, Stratigraphic categories.
Determination Of A High Resolution Paleoearthquake Chronology For The Northern San Andreas Fault At The Vedanta Marsh Site Marin County Ca
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Author : Tina M. Niemi
language : en
Publisher:
Release Date : 2005*
Determination Of A High Resolution Paleoearthquake Chronology For The Northern San Andreas Fault At The Vedanta Marsh Site Marin County Ca written by Tina M. Niemi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005* with Earthquake prediction categories.
Paleoseismic Investigations Of The San Andreas Fault On The San Francisco Peninsula California Text And Figures
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Author : Nelson Timothy Hall
language : en
Publisher:
Release Date : 1995
Paleoseismic Investigations Of The San Andreas Fault On The San Francisco Peninsula California Text And Figures written by Nelson Timothy Hall and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Earthquake hazard analysis categories.