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Transcript of 8:45-10:45 –Mexico, Rob Clayton –Sumatra, Kerry Sieh –Taiwan, Jean-Philippe Avouac – Western...
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8:45-10:45 – Mexico, Rob Clayton – Sumatra, Kerry Sieh – Taiwan, Jean-Philippe Avouac – Western US, Jason Saleeby – Alaska, Kerry Sieh – Large earthquakes, Jeroen Tromp, Don Helmberger– Subduction processes, Japan, Mark Simons – Iran, Brian Wernicke
10:45-… Discussion and tea around the posters
Tectonics Observatory2004- Annual Meeting
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The Caltech Tectonics Observatory
• An initiative supported by the Gordon and Betty Moore Fundation : $13,250,000 grant for a first 5-year phase.
15 Faculty involved 20 students and postdocs
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• Plate Tectonics is only an approximation : some plate boundaries are rather broad zones of diffuse deformation and seismicity.
• Plate Tectonics is a kinematic model : it does not address the mechanics and physics behind this surface manifestation of the earth dynamics.
• Implications of Plate Tectonics for hazard mitigation are poor: it does not provide much keys for assessing seismic and volcanic hazard.
• Time to update the elastic rebound model of the seismic cycle : The physical parameters controlling the behavior of large faults are poorly understood.
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The Caltech Tectonics Observatory
• Take advantage of recent technological advances in Earth Sciences to gain some better understanding of the dynamics of the lithosphere that will renew/encompass current paradigms (Plate Tectonics, Elastic rebound model of the EQ cycle)
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• Stimulate cross-fertilization among the various earth science disciplines in the Division.
• Develop the use of most recent techniques for tectonic studies (CGPS, satellite imagery, thermochronology, seismic imaging, isotopic geochemistry …)
• Take advantage of new computational techniques and recent hardware advances.
We intend to create an stimulating multidisciplinary environment to breed a new generation of earth scientists who will conceive the future theory and models of the earth dynamics
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Focus AreasData from existing and planned national networks (U.S., Japan, and Taiwan)Targeted field efforts in key areas
Analysis CenterComputationalGeochemicalGeological & Geophysical
(field obs. & remote sensing)
Implementation Strategies
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Infrastructure/ People
• Administrative assistant : Heather Steele• Technical support : J. Yu, S.Healy, M. Turner,
John Galetzka, X, X• Steering committee (R. Clayton, J. Eiler, M.
Gurnis, K. Sieh, M. Simons, B. Wernicke)• 8 multidisciplinary projects lead by 8 different
faculty.
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Infrastructure
• GIS facilities• Beowulf• Deployment of CGPS networks in Sumatra,
Bargain, Nepal,• Geochemistry, Stable Isotopes Mass
Spectrometer• 50 Broadband seismometers
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Regional Targets
Arabia and Indo-Asia collision zone ?
Sumatra
Peru-Chile America ?
Western North America
Taiwan
Japan
Middle America