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Publication details for Prof Mark AllenAllen, M.B., Anderson, L., Searle, R.C. & 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): 901-904.
- Publication type: Journal Article
- ISSN/ISBN: 0016-7649, 2041-479X
- DOI: 10.1144/0016-76492006-096
- Further publication details on publisher web site
- Durham Research Online (DRO) - may include full text
Author(s) from Durham
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.