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000012096 0247_ $$2DOI$$a10.1016/j.coal.2010.10.003
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000012096 084__ $$2WoS$$aEnergy & Fuels
000012096 084__ $$2WoS$$aGeosciences, Multidisciplinary
000012096 1001_ $$0P:(DE-HGF)0$$aDutta, S.$$b0
000012096 245__ $$aPetrology, palynology and organic geochemistry of Matanomadh lignite, Kutch Basin, Western India: Implications to palaeodeposition and hydrocarbon source potential
000012096 260__ $$aAmsterdam [u.a.]$$bElsevier$$c2011
000012096 300__ $$a91 - 102
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000012096 440_0 $$09001$$aInternational Journal of Coal Geology$$v$$x0166-5162$$y1
000012096 500__ $$3POF3_Assignment on 2016-02-29
000012096 500__ $$aDepartment of Science and Technology (DST), India is acknowledged for providing financial support to S. Dutta. R.P. Mathews is thankful to Council for Scientific and Industrial Research (CSIR) for providing Ph.D. fellowship. K.L. Mehrotra (RGL Mumbai, ONGC) is acknowledged for providing access to Rock-Eval instrument. The authors are grateful to SAIF, IIT Bombay; BSIP, Lucknow and FZ Julich for providing necessary facilities for the analysis. We thank H. Amijaya and anonymous reviewers for critically going through the manuscript and for their valuable comments.
000012096 520__ $$aPetrological, 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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000012096 65320 $$2Author$$aEocene lignites
000012096 65320 $$2Author$$aMatanomadh
000012096 65320 $$2Author$$aKutch Basin
000012096 65320 $$2Author$$aMacerals
000012096 65320 $$2Author$$aPalynomorphs
000012096 65320 $$2Author$$aBiomarkers
000012096 7001_ $$0P:(DE-HGF)0$$aMathews, R.P.$$b1
000012096 7001_ $$0P:(DE-HGF)0$$aSingh, B.D.$$b2
000012096 7001_ $$0P:(DE-HGF)0$$aTripathi, S.M.$$b3
000012096 7001_ $$0P:(DE-HGF)0$$aSaraswati, P.K.$$b4
000012096 7001_ $$0P:(DE-HGF)0$$aBanerjee, S.$$b5
000012096 7001_ $$0P:(DE-Juel1)VDB1006$$aMann, U.$$b6$$uFZJ
000012096 773__ $$0PERI:(DE-600)1494708-0$$a10.1016/j.coal.2010.10.003$$gp. 91 - 102$$p91 - 102$$q91 - 102$$tInternational journal of coal geology$$x0166-5162$$y2011
000012096 8567_ $$uhttp://dx.doi.org/10.1016/j.coal.2010.10.003
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