Caracterización y clasificación geoquímica de asfaltitas cubanas Geochemical characterization and classification of Cuban asphaltites

Autor: Zulema Dominguez, Jarbas Vicente Poley Guzzo, Débora de Almeida Azevedo
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Rok vydání: 2008
Předmět:
Zdroj: Química Nova, Vol 31, Iss 6, Pp 1330-1335 (2008)
Druh dokumentu: article
ISSN: 0100-4042
1678-7064
DOI: 10.1590/S0100-40422008000600011
Popis: Traditional biomarker parameters and aromatic compounds were applied to characterize and classify ten Cuban asphaltites (asphaltene-rich petroleum occurring as seeps or filling veins, joints, cavities and fissures). Genetic molecular parameters were compared in order to establish oil-oil correlations between samples. Thermal evolution was investigated using saturated biomarker and aromatic maturity parameters. All samples seem to represent petroleum in the early catagenetic stage. Statistical procedures used as auxiliary techniques show that they represent oils of Family II (marine anoxic carbonate sourced oils), except for 2 samples interpreted as belonging to Family III oils (normal marine siliciclastic suboxic sourced oils).
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