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A diffuse plate boundary model for Indian Ocean tectonicsIt is suggested that motion along the virtually aseismic Owen fracture zone is negligible, so that Arabia and India are contained within a single Indo-Arabian plate divided from the Australian plate by a diffuse boundary. The boundary is a zone of concentrated seismicity and deformation commonly characterized as 'intraplate'. The rotation vector of Australia relative to Indo-Arabia is consistent with the seismologically observed 2 cm/yr of left-lateral strike-slip along the Ninetyeast Ridge, north-south compression in the Central Indian Ocean, and the north-south extension near Chagos.
Document ID
19850058885
Document Type
Reprint (Version printed in journal)
Authors
Wiens, D. A. (Washington University St. Louis, MO, United States)
Demets, C. (Northwestern Univ. Evanston, IL, United States)
Gordon, R. G. (Northwestern Univ. Evanston, IL, United States)
Stein, S. (Northwestern Univ. Evanston, IL, United States)
Argus, D. (Northwestern University Evanston, IL, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1985
Publication Information
Publication: Geophysical Research Letters
Volume: 12
ISSN: 0094-8276
Subject Category
GEOPHYSICS
Funding Number(s)
CONTRACT_GRANT: NAS5-27238
CONTRACT_GRANT: NSF EAR-84-07510
CONTRACT_GRANT: NSF EAR-84-1723
Distribution Limits
Public
Copyright
Other