Geochemical characteristics of sphagnum brown coal — A possible oil-generating precursor |
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| Authors: | Jiamo Fu Guoying Sheng Deyu Chen Dehan Liu S C Brassell A Gowar G Eglinton |
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| Institution: | (1) Institute of Geochemistry, Academia Sinica, China;(2) Organic Geochemistry Unit, School of Chemistry, University of Bristol, Bristol, U.K. |
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| Abstract: | A preliminary study of newly discovered sphagnum brown coal from the Jingsuo Basin, Yunnan Province, China, which is quite
rich in montan wax, indicates the predominance of highern-alkane homologues and aromatized triterpenoid components. Aromatic hydrocarbons are composed mainly of pentacyclic and tetracyclic
di-, tri- and tetra-aromatic components, which are obviously diagenetically related to higher plant-derived triterpenoids
naturally occurring in the biosphere. Because the sphagnum brown coal still remains in the highly immature stage, it seems
that the progressive diagenetic aromatization of the higher plant-derived triterpenoids may start at a very early stage. |
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