Computer Science
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992gecoa..56.1231v&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 56, Issue 3, pp.1231-1246
Computer Science
3
Scientific paper
Series of structurally related hydrocarbons consisting of one or more sesquiterpane units with a l,6-dimethyl-4-(1-methylethyl)naphthalene (cadalene) carbon skeleton are shown to be present in the saturated and aromatic hydrocarbon fractions of crude oils from southeast Asia. These hydrocarbons are thought to originate from a cadinene polymer present in dammar resins, which depolymerises upon thermal stress leading to the formation of cadinanes, muurolanes, di- and bicadinanes, tricadinanes, and similar aromatic compounds. Homologues with an additional methyl group were also encountered. Identification of compounds was largely based on interpretation of mass spectral data. A diagenetic pathway relating the polycadinene occurring in extant resins with these polycyclic hydrocarbons is proposed, emphasizing their biomarker potential.
Abbink O. A.
de Leeuw Jan W.
Hessels K. C. J.
van Aarssen G. K. B.
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