1 / 5

Geodesy, Seismicity, Neotectonics

Geodesy, Seismicity, Neotectonics. Shimon Wdowinski Rowena Lohman Cecilio Rebollar Gina Schmalzle Kim Outerbridge Jeff McGuire Gordon Seitz Pat Williams Tini Plattner Jose Frez. What do we know?. First-order kinematics

nate
Download Presentation

Geodesy, Seismicity, Neotectonics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Geodesy, Seismicity, Neotectonics Shimon Wdowinski Rowena Lohman Cecilio Rebollar Gina Schmalzle Kim Outerbridge Jeff McGuire Gordon Seitz Pat Williams Tini Plattner Jose Frez

  2. What do we know? First-order kinematics major blocks, major faults, slip rates, major earthquakes, major active structures (on-land), uplift rates. Second order kinematics Secondary faults, second order active structures. Current deformation processes Earthquake deformation cycle, creep, delamination, folding.

  3. What we do NOT know How does the lithosphere accommodate extension and transcurrent motion during the current stage of rifting? Details of the kinematics Detailed EQ catalog Paleoseismic earthquake catalog Dense GPS network (current coverage is equivalent to that of Southern California in early 1990’s). Dense SAR data coverage Secondary faults (on-land & off-shore) Understanding the dynamics Detailed 3-D map of crustal properties (composition, seismic velocities, thermal structure, strength, rheology) Seismic efficiency (relative importance of seismic vs. aseismic slip) 3-D visco-elastic models

  4. How much progress did we make on the science plan No. 6: To understand the distribution of the extension and transcurrent strain with depth, in map view, and in time. No. 3: To characterize the rift as a thermo-mechanical system (rheological flow laws, brittle failure, low-angle normal faults).

  5. What progress did we make that is not on the science plan? Identified new deformation processes Delamination Triggering of earthquakes by aseismic creep Compound focal mechanism in Delfin Basin

More Related