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Oblique rift geometry of the West Siberian Basin : tectonic setting for the Siberian flood basalts.

Allen, M.B. and Anderson, L. and Searle, R.C. and Buslov, M. (2006) 'Oblique rift geometry of the West Siberian Basin : tectonic setting for the Siberian flood basalts.', Journal of the Geological Society., 163 (6). pp. 901-904.

Abstract

We use magnetic intensity data to determine the geometries of basalt-filled rifts of the West Siberian Basin. En echelon graben arrays suggest a component of right-lateral, north–south shear during east–west extension (present co-ordinates). Several major exposed faults at the basin margins, mainly within the Altaid orogenic belt, underwent right-lateral strike-slip in the Late Permian–Early Triassic interval. The combined datasets show that the Siberian flood basalts were erupted during right-lateral oblique extension between the Urals and the Siberian craton, centred on a triple junction in the NE of the West Siberian Basin.

Item Type:Article
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1144/0016-76492006-096
Date accepted:No date available
Date deposited:13 March 2015
Date of first online publication:December 2006
Date first made open access:No date available

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