199 The Geological Society of America Special Paper 544 Integrated mineralogical and rock magnetic study of Deccan red boles Eric Font* Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Universidade de Coimbra, 3000-272 Coimbra, Portugal, and Instituto Dom Luís (IDL), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal Thierry Adatte Institute of Earth Sciences (ISTE), Geopolis, CH-1015 Lausanne, Switzerland Alexandra Abrajevitch Department of Earth Sciences, Ehime University, 2-5 Bunkyo-cho, Matsuyama, Japan, and Institute of Tectonics and Geophysics, 680063 Khabarovsk, Russia José Mirão HERCULES Laboratory, School of Sciences and Technology–Geosciences Department, University of Évora, 7000-671 Évora, Portugal Nikhil Sharma Institute of Earth Sciences (ISTE), Geopolis, CH-1015 Lausanne, Switzerland, and Département des Sciences de la Terre, Université de Genève, Rue des Maraîchers 13, 1205 Genève, Switzerland Valentin Sordet Institute of Earth Sciences (ISTE), Geopolis, CH-1015 Lausanne, Switzerland Mariana Andrade Instituto Dom Luís (IDL), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal, and Departamento de Geologia, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, Lisboa, Portugal ABSTRACT We conducted a detailed rock magnetic and mineralogical study of bole beds from the Deccan magmatic province, India. Magnetic susceptibility of 15 bole beds showed two contrasting patterns, with susceptibility values either increasing or decreasing up the profile. We then focused on two representatives red boles located *Corresponding author: Instituo Dom Luís, Faculdade de Ciências da Universidade de Lisboa (IDL-FCUL), Edifício C8-8.3.22, Campo Grande, 1749-016, Lisboa, Portugal; font_eric@hotmail.com. Font, E., Adatte, T., Abrajevitch, A., Mirão, J., Sharma, N., Sordet, V., and Andrade, M., 2019, Integrated mineralogical and rock magnetic study of Deccan red boles, in Adatte, T., Bond, D.P.G., and Keller, G., eds., Mass Extinctions, Volcanism, and Impacts: New Developments: Geological Society of America Special Paper 544, p. 199–222, https://doi.org/10.1130/2019.2544(08). © 2019 The Geological Society of America. All rights reserved. For permission to copy, contact editing@geosociety.org. Downloaded from https://pubs.geoscienceworld.org/books/chapter-pdf/4978015/spe544-08e.pdf by guest on 24 July 2020