HR: 09:30h
AN: G51D-07 INVITED [Abstracts]
TI: What are the slip rates of the major faults of Tibet?
AU: * Wright, T J
EM: tim.wright@earth.ox.ac.uk
AF: COMET, Department of Earth Sciences, University of Oxford, Parks Road, Oxford, OX1 3PR
United Kingdom
AU: Parsons, B
EM: barry@earth.ox.ac.uk
AF: COMET, Department of Earth Sciences, University of Oxford, Parks Road, Oxford, OX1 3PR
United Kingdom
AU: England, P
EM: philip@earth.ox.ac.uk
AF: COMET, Department of Earth Sciences, University of Oxford, Parks Road, Oxford, OX1 3PR
United Kingdom
AU: Li, Z
EM: zhli@ge.ucl.ac.uk
AF: COMET, Department of Geomatic Engineering, University College London, Gower St, London, WC1E 6BT
United Kingdom
AU: Sibthorpe, A J
EM: ants@ge.ucl.ac.uk
AF: COMET, Department of Geomatic Engineering, University College London, Gower St, London, WC1E 6BT
United Kingdom
AU: Ziebart, M
EM: marek.ziebart@ge.ucl.ac.uk
AF: COMET, Department of Geomatic Engineering, University College London, Gower St, London, WC1E 6BT
United Kingdom
AU: Fielding, E J
EM: eric.j.fielding@jpl.nasa.gov
AF: Jet Propulsion Laboratories, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA
91109
United States
AB:
The slip rates of the major faults in Tibet are poorly known and the subject of considerable controversy. For example, recent
geological estimates of the slip rate of the Karakoram Fault suggest a rate of 10±1~mm/yr --- somewhat faster than the
rates estimated by GPS (3±5~mm/yr) or InSAR (1--3~mm/yr). On the Altyn Tagh Fault, slip rate estimates from offset
quaternary features range between 20 and 30~mm/yr, compared with geodetic estimates of 10~mm/yr or less. There are three
possible explanations for the differences between geodetic and geological slip rates: (i) geodetic slip rates are wrong, (ii)
geological slip rates are wrong, or (iii) slip rates vary with time. In this presentation, we will review the reliability of
geodetic and geological results and present new InSAR observations from central and western Tibet.
DE: 1209 Tectonic deformation (6924)
DE: 1242 Seismic cycle related deformations (6924, 7209, 7223, 7230)
DE: 1243 Space geodetic surveys
DE: 8111 Continental tectonics: strike-slip and transform
DE: 9320 Asia
SC: Geodesy [G]
MN: Fall Meeting 2005