Implications of new gravity data for Baikal Rift zone structure

Details Implications of new gravity data for Baikal Rift zone structure Implications of new gravity data for Baikal Rift zone structure

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20.1635r&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 15, p. 1635-1638.

Mathematics

Logic

28

Geological Faults, Gravity Anomalies, Lithosphere, Plates (Tectonics), Data Processing, Loads (Forces), Mathematical Models, Tectonics

Scientific paper

Newly 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.

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