Regional earthquakes in northern Tibetan Plateau: Implications for lithospheric strength in Tibet

Details Regional earthquakes in northern Tibetan Plateau: Implications for lithospheric strength in Tibet Regional earthquakes in northern Tibetan Plateau: Implications for lithospheric strength in Tibet

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3719307w&link_type=abstract

Geophysical Research Letters, Volume 37, Issue 19, CiteID L19307

Physics

2

Seismology: Seismicity And Tectonics (1207, 1217, 1240, 1242), Seismology: Continental Crust (1219), Seismology: Lithosphere (1236), Tectonophysics: Continental Contractional Orogenic Belts And Inversion Tectonics, Tectonophysics: Rheology: Crust And Lithosphere (8031)

Scientific paper

A total of 400 regional earthquakes were located in northern Tibetan Plateau from data recorded by INDEPTH-IV and PKU Eastern Kunlun arrays from May 2007 to June 2009. The distribution of these earthquakes is compatible with a continuously deforming Tibetan lithosphere. Most earthquakes occur at a depth range of 0-15 km, but no event is deeper than 30 km. This observation strongly supports the existence of a hot and weak lower crust beneath the northern Tibet. The crustal seismogenic zone appears slightly thicker beneath the northern Tibet than in the southern plateau, possibly reflecting a difference in the rheological (dry vs. wet) structure of the crust. The absence of lower crustal and uppermost mantle earthquakes in northern Tibet is consistent with a localized asthenospheric upwelling under the Qiangtang and Songpan-Ganze terranes. Finally, the lack of mantle earthquakes should be fully addressed in any models of subduction in northern Tibet.

Affiliated with

Also associated with

No associations

Rating

Regional earthquakes in northern Tibetan Plateau: Implications for lithospheric strength in Tibet does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Regional earthquakes in northern Tibetan Plateau: Implications for lithospheric strength in Tibet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Regional earthquakes in northern Tibetan Plateau: Implications for lithospheric strength in Tibet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1231389