Cordilleran Section - 116th Annual Meeting - 2020

Session No. 32
Thursday, 14 May 2020: 1:30 PM-5:30 PM
Madera Room (The Westin Pasadena)

T26. Geology and Geophysics of the Coso Geothermal Field and Source Area of the 2019 Ridgecrest Earthquake Sequence II: A Tribute to the Career of Francis C. (“Frank”) Monastero

 

Allen F. Glazner and J. Douglas Walker, Advocates
Paper #
Start Time
1:30 PM
SEISMOTECTONICS, SEISMICITY, AND STRESS STATE OF THE RIDGECREST-COSO REGION FROM THE 1930S THROUGH 2019
HAUKSSON, Egill, Seismological Laboratory, California Institute of Technology, 1200 E. California Blvd., MS 252-21, Pasadena, CA 91125 and JONES, Lucile M., Seismological Laboratory, California Istitute of Technology, 1200 East Califorina Blvd, Pasadena, CA 91125
1:50 PM
AFTERSHOCKS OF RIDGECREST EARTHQUAKES SUPPRESSED BY THERMAL DE-STRESSING IN COSO GEOTHERMAL FIELD
IM, Kyungjae, Geology and Planetary Science Division, California Institute of Technology, 235 S Allen Ave., Unit 3, Pasadena, CA 91106 and AVOUAC, Jean-Philippe, Division of Geological and Planetary Sciences, California Institute of Technology, 1200 E California Blvd, Pasadena, CA 91125
2:10 PM
NEW INSIGHTS FROM THE 2019 RIDGECREST EARTHQUAKES INTO THE EVOLVING ACCOMMODATION OF TRANSVERSE DEXTRAL-SLIP INTO THE THROUGH-GOING SINISTRAL-SLIP GARLOCK FAULT ZONE
ANDREW, Joseph E., Isotope Geochemistry Laboratory, University of Kansas, Lawrence, KS 66045 and WALKER, J. Douglas, Department of Geology, The University of Kansas, 1414 Naismith Blvd, Ritchie Hall, Lawrence, KS 66045
 
2:30 PM
Break
2:45 PM
FAULT SLIP DISTRIBUTION ALONG THE SOUTHERN 15 KM OF THE M7.1 RIDGECREST EARTHQUAKE SURFACE RUPTURE
AKCIZ, Sinan O.1, PADILLA, Salena1, DOLAN, James F.2 and HATEM, Alex E.3, (1)California State University - Fullerton, Department of Geological Sciences, 800 N State College Blvd, Fullerton, CA 92831, (2)Dept Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740, (3)U.S. Geological Survey, Geologic Hazards Science Center, Golden, CO 80401
3:05 PM
GROUND SURFACE RUPTURE MAPPING OF FAULTS IN THE RIDGECREST-TRONA FAULT COMPLEX AND EARTHQUAKE SEQUENCE
JORDAN Jr., Frank F., Geology, California State University, San Bernardino, 5500 University Parkway, San Bernardino, CA 92407; Geology, California State University, San Bernardino, 5500 University Parkway, San Bernardino, CA 92407, WAGNER, Miles, Office of Emergency Services, County of San Bernardino, 1743 Miro Way, Rialto, CA 92376, CATO, Kerry, Geology, California State University, San Bernardino, 5500 University Parkway, San Bernardino, CA 92407 and WORKING GROUP, Searles Valley, 92407 Office of Emergency Services, San Bernardino, CA 92407
3:25 PM
MODERN DEFORMATION AND VOLCANISM IN OWENS VALLEY REACTIVATES A LARAMIDE-AGE SHEAR ZONE
BARTLEY, John M., Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112, GLAZNER, Allen F., Dept. of Geological Sciences, University of North Carolina, Chapel Hill, NC 27599-3315, KYLANDER-CLARK, Andrew, Geological Sciences, UC, Santa Barbara, Department of Geological Sciences, UC Santa Barbara—Building 526, Santa Barbara, CA 93106-9630, COLEMAN, Drew S., Geological Sciences, University of North Carolina at Chapel Hill, Mitchell Hall, 104 South Rd., Chapel Hill, NC 27599-3315 and FRAZER, Ryan E., Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave., Bldg 54-1118, Cambridge, MA 02139
 
3:45 PM
Discussion
4:00 PM
DEXTRAL OFFSET ACROSS OWENS VALLEY: A VIEW FROM THE ALABAMA HILLS TO THE COSO RANGE
FRAZER, Ryan E., Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave., Bldg 54-1118, Cambridge, MA 02139; Geological Sciences, University of North Carolina at Chapel Hill, Mitchell Hall, 104 South Rd., Chapel Hill, NC 27599-3315, GAYNOR, Sean P., Geological Sciences, University of North Carolina at Chapel Hill, Mitchell Hall, 104 South Rd., Chapel Hill, NC 27599-3315; Department of Earth Sciences, University of Geneva, 13, Rue des Maraîchers, Geneva, 1205, Switzerland and COLEMAN, Drew S., Geological Sciences, University of North Carolina at Chapel Hill, Mitchell Hall, 104 South Rd., Chapel Hill, NC 27599-3315
4:20 PM
COMPLEX STRUCTURAL GEOLOGY IN THE INTERSECTION ZONE BETWEEN THE EASTERN GARLOCK, OWL LAKE, AND BROWN MOUNTAIN (PANAMINT VALLEY) FAULTS, SOUTHEAST CALIFORNIA: IMPLICATIONS FOR THE EVOLUTION OF THE GARLOCK FAULT
POLUN, Sean G., BIDGOLI, Tandis S. and GOMEZ, Francisco, Department of Geological Sciences, University of Missouri, 101 Geology Building, Columbia, MO 65211
4:40 PM
TECTONICS OF THE COSO RANGE, CALIFORNIA
WALKER, J. Douglas and WHITMARSH, Richard, Department of Geology, The University of Kansas, 1414 Naismith Blvd, Ritchie Hall, Lawrence, KS 66045
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