A flash pyrolysis and petrographic study of cutinite from the Indiana paper coal

Details A flash pyrolysis and petrographic study of cutinite from the Indiana paper coal A flash pyrolysis and petrographic study of cutinite from the Indiana paper coal

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989gecoa..53..671n&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 53, Issue 3, pp.671-683

Mathematics

Logic

2

Scientific paper

Samples obtained from the high-volatile bituminous Indiana cuticle-rich and paper coals (Indiana U.S.A.) were investigated by white light and blue light microscopy and by Curie point pyrolysis-mass spectrometry in combination with multivariate data analysis, Curie point pyrolysis-gas chromatography and Curie point pyrolysis-gas chromatographymass spectrometry. Samples obtained from several sites and of different degrees of weathering were analyzed. The macerai cutinite from the same samples was studied as well. The cutinite was concentrated by a standard palynological chemical oxidation technique as well as by density gradient centrifugation. The major constituent of the Indiana paper coal samples appeared to be a recently discovered non-saponifiable polymethylenic biopolymer, present in both recent and fossil plant cuticles. The maceral cutinite is almost exclusively made up of this highly resistant biopolymer. It is shown that upon severe natural weathering this biopolymer, because of its resistance against organic alteration and diagenesis, is relatively enriched and manifests itself in humic coals as the maceral cutinite.

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