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(Article of periodic en Anglais - 2010)

Document title

Tectonic geomorphology and evidence for active tilting of the Bela, Khadir and Bhanjada islands in the seismically active Kachchh palaeorift graben, Western India

Authors(s) and Affiliation(s)

CHOWKSEY V. (1) ; MAURYA D.M. (1) ; KHONDE N. (1) ; CHAMYAL L.S. (1) ;
(1) Dep. of Geology, M.S. Univ. of Baroda, Vadodara, INDE

Abstract

The Bela, Khadir and Bhanjada islands form a part of a linear chain of four major islands bound by the E-W trending Island Belt Fault (IBF) in the northern part of the seismically active Kachchh palaeorift basin. The islands are discrete tilt blocks comprising south dipping Mesozoic and Neogene rocks. The islands abruptly rise above the rann surface which is a flat salt encrusted surface representing the floor of the Holocene sea. The major geomorphic components of the Bela, Khadir and Bhanjada islands studied are the north facing escarpment forming the northern margins of the islands, south sloping tectonically controlled backslopes, raised intertidal flats, notches and other marine erosional features attributed to the palaeo-sea that occupied the rann surface until ∼2 ka. The presence of raised marine depositional and erosional features at the base of the escarpments point to mid-late Holocene uplift of the islands in a tilted manner due to tectonic activity along the IBF

Source

Article of periodic

published at : Zeitschrift für Geomorphologie / ISSN 0372-8854 / CODEN ZGMPAG

Editor : Gebruder Borntraeger, Stuttgart - ALLEMAGNE (1925)

Millesime : 2010, vol. 54, no4 [pp. 467-490]

Bibliographic references : 17 ref.

Collation : 15 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 8829

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1127/0372-8854/2010/0054-0021

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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