Catastrophic environmental transition at the Permian-Triassic Neo-Tethyan margin of Gondwanaland: Geochemical, isotopic and sedimentological evidence in the Spiti Valley, India Nilotpal Ghosh, Asish R. Basu, O.N. Bhargava, U.K. Shukla, Arundhuti Ghatak, Carmala N. Garzione, Arun D. Ahluwalia PII: S1342-937X(15)00099-4 DOI: doi: 10.1016/j.gr.2015.04.006 Reference: GR 1434 To appear in: Gondwana Research Received date: 18 November 2014 Revised date: 23 March 2015 Accepted date: 6 April 2015 Please cite this article as: Ghosh, Nilotpal, Basu, Asish R., Bhargava, O.N., Shukla, U.K., Ghatak, Arundhuti, Garzione, Carmala N., Ahluwalia, Arun D., Catastrophic environmental transition at the Permian-Triassic Neo-Tethyan margin of Gondwanaland: Geochemical, isotopic and sedimentological evidence in the Spiti Valley, India, Gondwana Research (2015), doi: 10.1016/j.gr.2015.04.006 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.