Deep Structure and Origin of the Baikal Rift Zone
Abstract
P-wave velocity images are determined under the Baikal rift zone in Siberia by using teleseismic tomography. Our results show prominent low-velocity anomalies in the upper mantle under the Baikal rift zone and high-velocity anomalies in the lithosphere under the Siberian craton. The low-velocity anomalies are interpreted as a mantle upwelling (plume) which has played an important role in the initiation and evolution of the Baikal rift zone. The rift formation may be also controlled by other factors such as older (prerift) linear lithosphere structures favorably positioned relative to the upwelling and favorable orientation of the far-field forces caused by the India-Asia collision.
Recommended Citation
D. Zhao et al., "Deep Structure and Origin of the Baikal Rift Zone," Earth and Planetary Science Letters, vol. 243, no. 3-4, pp. 681 - 691, Elsevier, Mar 2006.
The definitive version is available at https://doi.org/10.1016/j.epsl.2006.01.033
Department(s)
Geosciences and Geological and Petroleum Engineering
Keywords and Phrases
Baikal rift zone; India-Asia collision; Mantle upwelling; Plume; Teleseismic tomography; Rocks; Seismic waves; Velocity measurement; seismic velocity; velocity structure
International Standard Serial Number (ISSN)
0012-821X
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2006 Elsevier, All rights reserved.
Publication Date
01 Mar 2006
