Pyrolytic and spectroscopic studies of Eocene resin from Vastan lignite Mine,Cambay basin,Western India |
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| Authors: | Monalisa Mallick Suryendu Dutta Paul F Greenwood Norbert Bertram |
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| Institution: | 1.Department of Earth Sciences,Indian Institute of Technology-Bombay,Powai, Mumbai,India;2.WA Biogeochemistry and John de Laeter Mass Spectrometry Centres,University of Western Australia,Crawley,Australia;3.WA — Organic and Isotope Geochemistry Centre,Curtin University of Technology,Bentley,Australia;4.LTA-Labor für Toxikologie und Analytik,K?nigswinter,Germany |
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| Abstract: | The molecular structure of an Eocene fossil resin (Vastan, Cambay basin, Western India) has been investigated with complimentary
spectroscopic techniques. The FTIR spectrum shows strong aliphatic CH
x
(3000–2800 and 1460–1450 cm−1) and CH3 (1377 cm−1) absorptions and less intense aromatic C=C (1560–1610 cm−1) absorptions. The major products from analytical pyrolysis are cadalene based bicyclic sesquiterpenoids including some bicadinenes
and bicadinanes. The polycadinane products confirm the fossil material as an Angiosperm dammar resin, associated with inputs
of tropical rain forests supported by past climates. |
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| Keywords: | Fossil resin Eocene Polycadalene Cambay Basin Western India |
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