A geochemical study of macerals from a Miocene lignite and an Eocene bituminous coal, Indonesia

B. Artur Stankiewicz, Michael Kruge, Maria Mastalerz

Research output: Contribution to journalArticleResearchpeer-review

45 Citations (Scopus)

Abstract

Optical and chemical studies of maceral concentrates from a Miocene lignite and an Eocene high-volatile bituminous C coal from southeastern Kalimantan, Indonesia were undertaken using pyro-Lysis, optical, electron microprobe and FTIR techniques Pyrolysis products of vitrinite from bituminous coal were dominated by straight-chain aliphatics and phenols. The huminite of the Miocene lignite produced mostly phenolic compounds upon pyrolysis. Differences in the pyrolysis products between the huminite and vitrinite samples reflect both maturation related and paleobotanical differences. An undefined aliphatic source and/or bacterial biomass were the likely contributors of n-alkyl moieties to the vitrinite. The resinite fraction in the lignite yielded dammar-derived pyrolysis products, as well as aliphatics and phenols as the products of admixed huminite and other liptinites. The optically defined resinite-rich fraction of the bituminous coal from Kalimantan produced abundant n-aliphatic moieties upon pyrolysis, but only two major resin markers (cadalene and 1,6-dimethylnaphthalene). This phenomenon is likely due to the fact that Eocene resins were not dammar-related. Data from the electron microprobe and Fourier transform infrared spectrometry strongly support the results obtained by Py GC MS and microscopy.

Original languageEnglish
Pages (from-to)531-545
Number of pages15
JournalOrganic Geochemistry
Volume24
Issue number5
DOIs
StatePublished - 1 Jan 1996

Fingerprint

bituminous coal
Coal
lignite
pyrolysis
Eocene
Miocene
vitrinite
Pyrolysis
electron probe analysis
Phenols
phenol
resin
Resins
maceral
lysis
phenolic compound
Electrons
Fourier transform
spectrometry
maturation

Keywords

  • Fourier Transform infrared spectrometry
  • Tertiary Indonesian coal
  • analytical pyrolysis-gas chromatography mass spectrometry
  • huminite
  • maceral separation
  • resinite
  • vitrinite

Cite this

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abstract = "Optical and chemical studies of maceral concentrates from a Miocene lignite and an Eocene high-volatile bituminous C coal from southeastern Kalimantan, Indonesia were undertaken using pyro-Lysis, optical, electron microprobe and FTIR techniques Pyrolysis products of vitrinite from bituminous coal were dominated by straight-chain aliphatics and phenols. The huminite of the Miocene lignite produced mostly phenolic compounds upon pyrolysis. Differences in the pyrolysis products between the huminite and vitrinite samples reflect both maturation related and paleobotanical differences. An undefined aliphatic source and/or bacterial biomass were the likely contributors of n-alkyl moieties to the vitrinite. The resinite fraction in the lignite yielded dammar-derived pyrolysis products, as well as aliphatics and phenols as the products of admixed huminite and other liptinites. The optically defined resinite-rich fraction of the bituminous coal from Kalimantan produced abundant n-aliphatic moieties upon pyrolysis, but only two major resin markers (cadalene and 1,6-dimethylnaphthalene). This phenomenon is likely due to the fact that Eocene resins were not dammar-related. Data from the electron microprobe and Fourier transform infrared spectrometry strongly support the results obtained by Py GC MS and microscopy.",
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A geochemical study of macerals from a Miocene lignite and an Eocene bituminous coal, Indonesia. / Stankiewicz, B. Artur; Kruge, Michael; Mastalerz, Maria.

In: Organic Geochemistry, Vol. 24, No. 5, 01.01.1996, p. 531-545.

Research output: Contribution to journalArticleResearchpeer-review

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