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dc.contributor.authorMeade, Brendan J.
dc.contributor.authorLoveless, Jack
dc.date.accessioned2010-07-20T19:50:22Z
dc.date.issued2009
dc.identifier.citationMeade, Brendan J., and John P. Loveless. 2009. Block modeling with connected fault-network geometries and a linear elastic coupling estimator in spherical coordinates. Bulletin of the Seismological Society of America 99(6): 3124-3139.en_US
dc.identifier.issn0037-1106en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:4315068
dc.description.abstractGeodetic observations of interseismic deformation provide constraints on the partitioning of fault slip across plate boundary zones, the spatial distribution of both elastic and inelastic strain accumulation, and the nature of the fault system evolution. Here we describe linear block theory, which decomposes surface velocity fields into four components: (1) plate rotations, (2) elastic deformation from faults with kinematically consistent slip rates, (3) elastic deformation from faults with spatially variable coupling, and (4) homogeneous intrablock strain. Elastic deformation rates are computed for each fault segment in a homogeneous elastic half-space using multiple optimal planar Cartesian coordinate systems to minimize areal distortion and triangular dislocation elements to accurately represent complex fault system geometry. Block motions, fault-slip rates, elastic coupling, and internal block strain rates are determined simultaneously using a linear estimator with constraints from both geodetically determined velocity fields and geologic fault-slip rate estimates. We also introduce algorithms for efficiently implementing alternative fault-network geometries to quantify parameter sensitivity to nonlinear perturbations in model geometry.en_US
dc.description.sponsorshipEarth and Planetary Sciencesen_US
dc.language.isoen_USen_US
dc.publisherSeismological Society of Americaen_US
dc.relation.isversionofdoi:10.1785/0120090088en_US
dc.relation.hasversionhttp://summit.fas.harvard.edu/~meade/meade/Publications_files/MeadeAndLovelessBssa2009BlockTheory.pdfen_US
dash.licenseMETA_ONLY
dc.subjectSouthern Californiaen_US
dc.subjecttriangular dislocation elementsen_US
dc.subjectpositioning system measurementsen_US
dc.subjectCalifornia shear zoneen_US
dc.subjectstrain accumulationen_US
dc.subjectcrustal deformationen_US
dc.subjectslip ratesen_US
dc.titleBlock Modeling with Connected Fault-Network Geometries and a Linear Elastic Coupling Estimator in Spherical Coordinatesen_US
dc.typeJournal Articleen_US
dc.description.versionVersion of Recorden_US
dc.relation.journalBulletin of the Seismological Society of Americaen_US
dash.depositing.authorMeade, Brendan J.
dash.embargo.until10000-01-01
dc.identifier.doi10.1785/0120090088*
dash.contributor.affiliatedLoveless, Jack
dash.contributor.affiliatedMeade, Brendan


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