NDLI: Joint Inversion of Seismic and Magnetotelluric Data in the Parkfield Region of California Using the Normalized Cross-Gradient Constraint

Please wait, while we are loading the content...

Composition, Alteration, and Texture of Fault-Related Rocks from Safod Core and Surface Outcrop Analogs: Evidence for Deformation Processes and Fluid-Rock Interactions

Fault Geometry and Active Stress from Earthquakes and Field Geology Data Analysis: The Colfiorito 1997 and L’Aquila 2009 Cases (Central Italy)

The Seismotectonics of the Po Plain (Northern Italy): Tectonic Diversity in a Blind Faulting Domain

A 21-Event, 4,000-Year History of Surface Ruptures in the Anza Seismic Gap, San Jacinto Fault, and Implications for Long-term Earthquake Production on a Major Plate Boundary Fault

Systematic Receiver Function Analysis of the Moho Geometry in the Southern California Plate-Boundary Region

Lineament Domain of Regional Strike-Slip Corridor: Insight from the Neogene Transtensional De Geer Transform Fault in NW Spitsbergen

Pseudotachylyte and Fluid Alteration at Seismogenic Depths (Glacier Lakes and Granite Pass Faults, Central Sierra Nevada, USA)

Pulse-Like Rupture Induced by Three-Dimensional Fault Zone Flower Structures

Dynamic Ruptures on a Frictional Interface with Off-Fault Brittle Damage: Feedback Mechanisms and Effects on Slip and Near-Fault Motion

Microstructures Induced in Porous Limestone by Dynamic Loading, and Fracture Healing: An Experimental Approach

Investigation of the Temporal Change in Attenuation Within the Ruptured Fault Zone of the 1999 Mw7.3 Chi-Chi, Taiwan Earthquake

Postseismic Deformation Following the 2010 $$M = 7.2$$ M = 7.2 El Mayor-Cucapah Earthquake: Observations, Kinematic Inversions, and Dynamic Models

Average Stress Drops of Southern California Earthquakes in the Context of Crustal Geophysics: Implications for Fault Zone Healing

Scaling Relations of Source Parameters of Earthquakes Occurring on Inland Crustal Mega-Fault Systems

Pure and applied geophysics : Volume 172, Issue 3-4, March 2015

Pure and applied geophysics : Volume 172, Issue 2, February 2015

Pure and applied geophysics : Volume 172, Issue 1, January 2015

Pure and applied geophysics : Volume 171

Pure and applied geophysics : Volume 170

Pure and applied geophysics : Volume 169

Pure and applied geophysics : Volume 168

Pure and applied geophysics : Volume 167

Pure and applied geophysics : Volume 166

Pure and applied geophysics : Volume 165

Pure and applied geophysics : Volume 164

Pure and applied geophysics : Volume 163

Pure and applied geophysics : Volume 162

Pure and applied geophysics : Volume 161

Pure and applied geophysics : Volume 160

Pure and applied geophysics : Volume 159

Pure and applied geophysics : Volume 158

Pure and applied geophysics : Volume 157

Pure and applied geophysics : Volume 156

Pure and applied geophysics : Volume 155

Pure and applied geophysics : Volume 154

Pure and applied geophysics : Volume 153

Pure and applied geophysics : Volume 152

Pure and applied geophysics : Volume 151

Pure and applied geophysics : Volume 150

Pure and applied geophysics : Volume 149

Joint Inversion of Seismic and Magnetotelluric Data in the Parkfield Region of California Using the Normalized Cross-Gradient Constraint

Content Provider	Springer Nature Link
Author	Bennington, Ninfa L. Zhang, Haijiang Thurber, Clifford H. Bedrosian, Paul A.
Copyright Year	2014
Abstract	We present jointly inverted models of P-wave velocity (Vp) and electrical resistivity for a two-dimensional profile centered on the San Andreas Fault Observatory at Depth (SAFOD). Significant structural similarity between main features of the separately inverted Vp and resistivity models is exploited by carrying out a joint inversion of the two datasets using the normalized cross-gradient constraint. This constraint favors structurally similar Vp and resistivity images that adequately fit the seismic and magnetotelluric (MT) datasets. The new inversion code, tomoDDMT, merges the seismic inversion code tomoDD and the forward modeling and sensitivity kernel subroutines of the MT inversion code OCCAM2DMT. TomoDDMT is tested on a synthetic dataset and demonstrates the code’s ability to more accurately resolve features of the input synthetic structure relative to the separately inverted resistivity and velocity models. Using tomoDDMT, we are able to resolve a number of key issues raised during drilling at SAFOD. We are able to infer the distribution of several geologic units including the Salinian granitoids, the Great Valley sequence, and the Franciscan Formation. The distribution and transport of fluids at both shallow and great depths is also examined. Low values of velocity/resistivity attributed to a feature known as the Eastern Conductor (EC) can be explained in two ways: the EC is a brine-filled, high porosity region, or this region is composed largely of clay-rich shales of the Franciscan. The Eastern Wall, which lies immediately adjacent to the EC, is unlikely to be a fluid pathway into the San Andreas Fault’s seismogenic zone due to its observed higher resistivity and velocity values.
Starting Page	1033
Ending Page	1052
Page Count	20
File Format	PDF
ISSN	00334553
Journal	Pure and applied geophysics
Volume Number	172
Issue Number	5
e-ISSN	14209136
Language	English
Publisher	Springer Basel
Publisher Date	2014-12-14
Publisher Place	Basel
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Inverse theory joint inversion seismic tomography magnetotellurics Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Geochemistry and Petrology Geophysics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Semiautomatic and Automatic Cooperative Inversion of Seismic and Magnetotelluric Data

Sequential joint inversion of gravity and magnetic data via the cross‐gradient constraint

Aftershock Distribution as a Constraint on the Geodetic Model of Coseismic Slip for the 2004 Parkfield Earthquake

Two‐dimensional data‐space joint inversion of magnetotelluric, gravity, magnetic and seismic data with cross‐gradient constraints

Semiautomatic and Automatic Cooperative Inversion of Seismic and Magnetotelluric Data

Updating seismic hazard at Parkfield

Joint inversion of seismic traveltimes and magnetotelluric data with a directed structural constraint

MT+, Integrating Magnetotellurics to Determine Earth Structure, Physical State, and Processes

A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data

Joint Inversion of Seismic and Magnetotelluric Data in the Parkfield Region of California Using the Normalized Cross-Gradient Constraint

Similar Documents

Semiautomatic and Automatic Cooperative Inversion of Seismic and Magnetotelluric Data

Sequential joint inversion of gravity and magnetic data via the cross‐gradient constraint

Aftershock Distribution as a Constraint on the Geodetic Model of Coseismic Slip for the 2004 Parkfield Earthquake

Two‐dimensional data‐space joint inversion of magnetotelluric, gravity, magnetic and seismic data with cross‐gradient constraints

Semiautomatic and Automatic Cooperative Inversion of Seismic and Magnetotelluric Data

Updating seismic hazard at Parkfield

Joint inversion of seismic traveltimes and magnetotelluric data with a directed structural constraint

MT+, Integrating Magnetotellurics to Determine Earth Structure, Physical State, and Processes

A Robust Two-Step Inversion of Complex Magnetotelluric Apparent Resistivity Data

Joint Inversion of Seismic and Magnetotelluric Data in the Parkfield Region of California Using the Normalized Cross-Gradient Constraint