Palaeocurrent direction estimated in Mesozoic redbeds of the Khorat Plateau, Lao PDR, Indochina Block using anisotropy of magnetic susceptibility》.pdf

Journal of Asian Earth Sciences 106 (2015) 1–18 Contents lists available at ScienceDirect Journal of Asian Earth Sciences journal homepage: www.else /locate/jseaes Palaeocurrent direction estimated in Mesozoic redbeds of the Khorat Plateau, Lao PDR, Indochina Block using anisotropy of magnetic susceptibility Sounthone Singsoupho a, Tripob Bhongsuwan b,⇑, Sten-Åke Elming c a Geophysics Unit, Department of Physics, Faculty of Natural Sciences, National University of Laos, P.O. Box: 7322, Vientiane Capital, Lao Democratic People’s Republic b Geophysics Research Center, Department of Physics, Faculty of Science, Prince of Songkla University, Hatyai 90112, Thailand c Division of Geosciences and Environmental Engineering, Department of Civil, Environmental and Natural Resources Engineering, Luleå University of Technology, SE-97187 Luleå, Sweden a r t i c l e i n f o a b s t r a c t Article history: Mesozoic redbeds in the western part of central and southern Laos are the most abundant rocks of the Received 24 November 2014 Khorat Plateau. In earlier studies, palaeocurrent directions of the Mesozoic redbeds in the Khorat Accepted 25 February 2015 Plateau were mapped, but for the Upper Cretaceous sediments no palaeocurrent data was presented. Available online 14 March 2015 The purpose of the present study is to test previous models of sedimentary source areas and propose palaeocurrent flow directions for Upper Cretaceous sediments in the Khorat Plate