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@ARTICLE{Dutta:12096,
author = {Dutta, S. and Mathews, R.P. and Singh, B.D. and Tripathi,
S.M. and Saraswati, P.K. and Banerjee, S. and Mann, U.},
title = {{P}etrology, palynology and organic geochemistry of
{M}atanomadh lignite, {K}utch {B}asin, {W}estern {I}ndia:
{I}mplications to palaeodeposition and hydrocarbon source
potential},
journal = {International journal of coal geology},
issn = {0166-5162},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {PreJuSER-12096},
pages = {91 - 102},
year = {2011},
note = {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.},
abstract = {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.},
keywords = {J (WoSType)},
cin = {IBG-3},
ddc = {550},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {Terrestrische Umwelt},
pid = {G:(DE-Juel1)FUEK407},
shelfmark = {Energy $\&$ Fuels / Geosciences, Multidisciplinary},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000286704600010},
doi = {10.1016/j.coal.2010.10.003},
url = {https://juser.fz-juelich.de/record/12096},
}