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Implications of new gravity data for Baikal Rift zone structureNewly available, 2D Bouguer gravity anomaly data from the Baikal Rift zone, Siberia, indicate that this discrete, intracontinental rift system is regionally compensated by an elastic plate about 50 km thick. However, spectral and spatial domain analyses and isostatic anomaly calculations show that simple elastic plate theory does not offer an adequate explanation for compensation in the rift zone, probably because of significant lateral variations in plate strength and the presence of subsurface loads. Our results and other geophysical observations support the interpretation that the Baikal Rift zone is colder than either the East African or Rio Grande rift.
Document ID
19930069932
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ruppel, C.
(Woods Hole Oceanographic Institution MA, United States)
Kogan, M. G.
(Russian Academy of Sciences Inst. of Physics of the Earth, Moscow, Russia)
Mcnutt, M. K.
(MIT Cambridge, MA, United States)
Date Acquired
August 16, 2013
Publication Date
August 6, 1993
Publication Information
Publication: Geophysical Research Letters
Volume: 20
Issue: 15
ISSN: 0094-8276
Subject Category
Geophysics
Accession Number
93A53929
Funding Number(s)
CONTRACT_GRANT: NAG5-1084
Distribution Limits
Public
Copyright
Other

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