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About the lithospheric structure of central Tibet, based on seismic data from the INDEPTH III profile

Authors

Meissner,  R.
Publikationen aller GIPP-unterstützten Projekte, Deutsches GeoForschungsZentrum;

/persons/resource/tilmann

Tilmann,  F.
0 Pre-GFZ, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
Publikationen aller GIPP-unterstützten Projekte, Deutsches GeoForschungsZentrum;

Haines,  S.
Publikationen aller GIPP-unterstützten Projekte, Deutsches GeoForschungsZentrum;

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Citation

Meissner, R., Tilmann, F., Haines, S. (2004): About the lithospheric structure of central Tibet, based on seismic data from the INDEPTH III profile. - Tectonophysics, 380, 1-2, 1-25.
https://doi.org/10.1016/j.tecto.2003.11.007


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_61135
Abstract
Signals from 11 shots and 8 earthquakes, and numerous teleseismic events were recorded along the 400-km seismic line INDEPTH III in centralTibet and interpreted together with previous seismic and tectonic data. The abnormal behavior of various mantle phases reveals a complex Moho-transition zone, especially in the northern part of the line, in the Changtang Block, where the lower crust and the mantle show unusually low velocities, a shingled appearance of Pn and no low-velocity layer in the upper crust. The strong east–west anisotropy in the Changtang Block is related to an easterly escape movement of the whole lithosphere, facilitated by the warm and weak layers in the lower crust and the upper mantle, bounded apparently by two prominent west–east running fault zones.