Seismic image of the Tarim basin and its collision with Tibet

Honn Kao, Rui Gao, Ruey-Juin Rau, Danian Shi, Rong Yuh Chen, Ye Guan, Francis T. Wu

Research output: Contribution to journalArticle

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Abstract

A broadband seismic deployment in 1998-1999 in southwestern Tarim provided data for imaging the crust and upper mantle across the contact between the Tarim block and the Tibetan Plateau. A profile composed of migrated teleseismic receiver functions clearly shows lateral structural changes. The crust under the Tarim basin is relatively simple. The Moho discontinuity is mapped at a depth of 42 km near the northern end of the array and dips gently toward the south to ∼50 km under the Kunlun foreland. The Tarim basin appears to be rigid, with little shortening. Farther to the south, the imaging reveals a complex of reflectors in the lower crust and the upper mantle. There are both north- and south-dipping upper mantle structures under the Kunlun foreland and Kunlun Shan region. We found the observations to be more consistent with a model of lithospheric collision in which the crust and the upper mantle on both sides interpenetrate and deform.

Original languageEnglish
Pages (from-to)575-578
Number of pages4
JournalGeology
Volume29
Issue number7
DOIs
Publication statusPublished - 2001 Jul 1

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upper mantle
collision
crust
basin
mantle structure
Moho
structural change
lower crust
dip
discontinuity
plateau

All Science Journal Classification (ASJC) codes

  • Geology

Cite this

Kao, Honn ; Gao, Rui ; Rau, Ruey-Juin ; Shi, Danian ; Chen, Rong Yuh ; Guan, Ye ; Wu, Francis T. / Seismic image of the Tarim basin and its collision with Tibet. In: Geology. 2001 ; Vol. 29, No. 7. pp. 575-578.
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Seismic image of the Tarim basin and its collision with Tibet. / Kao, Honn; Gao, Rui; Rau, Ruey-Juin; Shi, Danian; Chen, Rong Yuh; Guan, Ye; Wu, Francis T.

In: Geology, Vol. 29, No. 7, 01.07.2001, p. 575-578.

Research output: Contribution to journalArticle

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