PENINSULA GEOLOGICAL SOCIETY

Presents

Mark Zoback, Stanford University Dept. of Geophysics

Force-Limited Lithospheric Deformation: Constraints Imposed by Crustal Strength and Lithospheric Rheology

  • DINNER MEETING - Tuesday, January 8, 2002

    • Location: Stanford University

  • 5:30 PM-Wine Tasting: Mitchell Bldg., first floor
  • 6:15 PM-Dinner: . . . Mitchell Bldg., first floor
  • 7:30 PM-Meeting: . . . Skilling Auditorium

    see map

    Anyone wishing to attend the lecture only is welcome at no cost.

    This will be the 342nd meeting since 1954.

    Abstract

    A wide range of tectonic problems can be viewed in the context of a relatively simple conceptual model governed by plate-driving forces and lithospheric strength. In this presentation, observational evidence for strong, critically-stressed, hydraulically-conductive intraplate crust will be briefly reviewed and several examples of force-limited lithospheric deformation will be briefly considered - the transmission of intraplate stress through an upper crustal stress guide, the physical limitations on the rates of intraplate deformation, the triggering of intraplate seismicity in the New Madrid seismic zone by Pleistocene deglaciation and regional stress directions and deformation fields in the vicinity of the San Andreas fault - a weak fault in an otherwise strong crust.

    About the Speaker

    Mark Zoback

    Mark D. Zoback has been a Professor of Geophysics at Stanford University since 1984. He received his Ph.D. in Geophysics from Stanford in 1975. Before joining the Stanford faculty, Mark spent 9 years at the USGS. His principal research interests are related to the state of stress in the earth's crust and the mechanics of crustal faulting.

    Mark's Faculty Web page

    Reservations: The preferred way to make reservations is simply to email Janice Sellers at janice@seismosoc.org by Friday, January 4, tell her you will attend, commit to pay, and bring your payment to the meeting. Janice always emails a confirmation; if you don't get one, assume email crashed yet again and email her a second time. A check made to"PGS"is preferred, payable at the meeting.

    If you want to pay in advance:

    Stanford faculty and students: Please make dinner reservations by Friday, January 4. Contact Dr. Juhn Liou via his mailbox (and leave check), Geological and Environmental Sciences Office, Geocorner - Bldg. 320 (Rm. 118). Make checks out to"PGS."

    All others, including faculty and students from other Bay Area universities and colleges and USGS: Please make dinner reservations by Friday, January 4. Contact Janice Sellers, at Seismological Society of America, 201 Plaza Professional Building, El Cerrito, CA 94530, phone (510) 559-1780. Send check made out to"PGS"to Janice.

    Dinner is $26.00. Includes wine (5:30 to 6:15 PM.), dinner (6:15-7:30 PM.), tax, and tip.

    For students from all universities and colleges, the dinner, including the social half-hour, is $5.00 and is partially subsidized thanks to the School of Earth Sciences, Stanford University (Note, no-show reservations owe the full price).

    Dues for Academic Year 2001-2002 ($10.00) should be sent to Janice Sellers, Seismological Society of America, 201 Plaza Professional Building, El Cerrito, CA 94530. Janice's phone: (510) 559-1780.

    Officers: Gary Ernst, President; Mike Diggles, Vice President; Vicki Langenheim, Secretary; Janice Sellers, Treasurer; Adina Paytan, Field-Trip Czarina

    Campus map

    Date created: 12/05/2001
    Last modified: 05/16/2002
    Created by: Mike Diggles, Vice President, PGS.

    c/o U.S. Geological Survey, MS-951, 345 Middlefield Road, Menlo Park, CA 94025. (650) 329-5404. email Mike Diggles at mdiggles@usgs.gov

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