Neotectonics on the Arabian Sea coasts
Vita-Finzi, C. (2002). Neotectonics on the Arabian Sea coasts, in: Clift, P.D. et al. The tectonic and climatic evolution of the Arabian Sea region. Geological Society Special Publication, 195: pp. 87-96. https://dx.doi.org/10.1144/GSL.SP.2002.195.01.06 In: Clift, P.D. et al. (2002). The tectonic and climatic evolution of the Arabian Sea region. Geological Society Special Publication, 195. The Geological Society: London. e-ISBN 9781862394438. VI, 525 pp. https://dx.doi.org/10.1144/GSL.SP.2002.195, more In: Hartley, A.J. et al. (Ed.) Geological Society Special Publication. Geological Society of London: Oxford; London; Edinburgh; Boston, Mass.; Carlton, Vic.. ISSN 0305-8719; e-ISSN 2041-4927, more |
| Keywords | Geological structures > Faults
Geological time > Phanerozoic > Geological time > Cenozoic > Quaternary > Holocene
Properties > Physical properties > Mechanical properties > Deformation
Shorelines
ISW, Arabian Sea [Marine Regions]
Marine/Coastal |
| Abstract | The Holocene record on the coasts of the Arabian Sea provides information on the nature and rate of deformation generated by the interaction between the Indian, Arabian and Eurasian Plates. Holocene marine terraces show that the southern Makran has been subject to the infrequent but vigorous coseismic uplift (?2 m) that characterizes other subduction settings and they indicate landward rotation of the imbricate faults among which shortening is distributed. The lack of significant Holocene deformation on the SE coast of the Arabian peninsula is consistent with its position parallel to a transform, although there is evidence for large-scale buckling driven by convergence at the Strait of Hormuz in the NE. Geomorphological and tide-gauge evidence for localized uplift on the southwestern coast of India may represent compressional buckling here too in response to Himalayan collision. Bathymetric and geodetic data can help to bridge these sequences and thus enhance their value for quantifying plate rheology and dynamics, notably by linking variations in plate-margin displacement with major sea-floor strike-slip structures and by eventually confirming transitory as well as sustained compressive buckling on land. |
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