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024 7 _ |2 DOI
|a 10.1016/j.coal.2010.10.003
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041 _ _ |a eng
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084 _ _ |2 WoS
|a Energy & Fuels
084 _ _ |2 WoS
|a Geosciences, Multidisciplinary
100 1 _ |a Dutta, S.
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245 _ _ |a Petrology, palynology and organic geochemistry of Matanomadh lignite, Kutch Basin, Western India: Implications to palaeodeposition and hydrocarbon source potential
260 _ _ |a Amsterdam [u.a.]
|b Elsevier
|c 2011
300 _ _ |a 91 - 102
336 7 _ |a Journal Article
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440 _ 0 |a International Journal of Coal Geology
|x 0166-5162
|0 9001
|y 1
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500 _ _ |3 POF3_Assignment on 2016-02-29
500 _ _ |a Department of Science and Technology (DST), India is acknowledged for providing financial support to S. Dutta. R.P. Mathews is thankful to Council for Scientific and Industrial Research (CSIR) for providing Ph.D. fellowship. K.L. Mehrotra (RGL Mumbai, ONGC) is acknowledged for providing access to Rock-Eval instrument. The authors are grateful to SAIF, IIT Bombay; BSIP, Lucknow and FZ Julich for providing necessary facilities for the analysis. We thank H. Amijaya and anonymous reviewers for critically going through the manuscript and for their valuable comments.
520 _ _ |a Petrological, palynological and organic-geochemical investigations were undertaken to determine the source vegetation, depositional conditions and hydrocarbon source potential of Eocene Matanomadh lignites from Kutch Basin, western India. The maceral study reveals that studied lignites are rich in huminite (ay. 63%) with sub-ordinate amount of liptinite (ay. 19%) and low inertinite (ay. 3%), along with low to moderately high associated mineral matters (ay. 15%). The overall petrographic composition points to a lagoonal condition for the formation of these lignites. The mean huminite reflectance values (R-r: 0.28-0.34%, ay. 0.31%) as well as low Rock-Eval T-max (av. 417 degrees C) values for the seams, suggest brown coal or lignitic stage/rank for the studied lignites. The palynological assemblages, dominated by tropical angiospermic pollen, suggest prevalence of warm humid tropical climate during the deposition of these lignites.The total organic carbon (TOC) content of lignites ranges between 26 and 58 wt.%, whereas the TOC content of the associated carbonaceous shales is around 4 wt.%. The Hydrogen Index (HI) ranging from 23 to 452 mg HC/g TOC indicates that the lignite sequence has the potential to produce mixed oil and gaseous hydrocarbons on maturation. The major pyrolysis products of lignites, derived from Curie point pyrolysis-GC-MS, are straight chain aliphatics, phenols and cadalene-based C-15 bicyclic sesquiterpenoids. The exclusive occurrence of C-15 bicyclic sesquiterpenoids suggests that these compounds are derived from dammar resin of angiosperm plants, belonging to family Dipterocarpaceae. (C) 2010 Elsevier B.V. All rights reserved.
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653 2 0 |2 Author
|a Eocene lignites
653 2 0 |2 Author
|a Matanomadh
653 2 0 |2 Author
|a Kutch Basin
653 2 0 |2 Author
|a Macerals
653 2 0 |2 Author
|a Palynomorphs
653 2 0 |2 Author
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700 1 _ |a Mathews, R.P.
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700 1 _ |a Singh, B.D.
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700 1 _ |a Tripathi, S.M.
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700 1 _ |a Saraswati, P.K.
|b 4
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700 1 _ |a Banerjee, S.
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700 1 _ |a Mann, U.
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773 _ _ |a 10.1016/j.coal.2010.10.003
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856 7 _ |u http://dx.doi.org/10.1016/j.coal.2010.10.003
909 C O |o oai:juser.fz-juelich.de:12096
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