Mid-Cretaceous inversion in the Northern Khorat Plateau of Lao PDR and Thailand

Lovatt Smith, P.F. and Stokes, R.B. and Carter, A. and Bristow, Charlie S. (1996) Mid-Cretaceous inversion in the Northern Khorat Plateau of Lao PDR and Thailand. In: Hall, R. and Blundell, D.J. (eds.) Tectonic Evolution of Southeast Asia. London, UK: The Geological Society, pp. 233-247. ISBN 9781897799529.

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Official URL: https://doi.org/10.1144/GSL.SP.1996.106.01.15

Abstract

Evidence is presented from the study area for the occurrence of a regional compressive tectonic event in the mid-Cretaceous (Aptian-Cenomanian). This is tentatively attributed to the effects of a distant continent-continent collision to the west. Pre-existing structural trends were reactivated parallel to palaeo-continental sutures to the northeast (Song Ma and Song Da) and west (Nan). The event interrupted the latest Jurassic to earliest Palaeocene subsidence and continental sedimentation of the Khorat Plateau Basin. The primary effects are shown by seismic data to be regional tilting, compressive folding, reverse faulting and inversion of the basin subsidence pattern. The data do not support the current view that such structuring was initiated during the Tertiary. However they do show that there was some reactivation of mid-Cretaceous structures during regional uplift in the Tertiary. This revision of timing of structuring suggests the hydrocarbon potential of the area may be greater than previously anticipated.

Metadata

Item Type:	Book Section
School:	Birkbeck Faculties and Schools > Faculty of Science > School of Natural Sciences
Depositing User:	Sarah Hall
Date Deposited:	09 Jul 2019 13:49
Last Modified:	02 Aug 2023 17:52
URI:	https://eprints.bbk.ac.uk/id/eprint/28055

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