3-Alkyl and 3-carboxyalkyl steranes in marine evaporitic oils of the Potiguar Basin, Brazil

Autor:	Marcio Rocha Mello, Eugenio V. Santos Neto, Anita J. Marsaioli, Luzia Koike, José Arimateia Dantas Lopes, Francisco de A.M. Reis
Rok vydání:	1999
Předmět:	chemistry.chemical_classification Sterane chemistry.chemical_compound Homologous series chemistry Geochemistry and Petrology Environmental chemistry Mineralogy Geology Structural basin Alkyl
Zdroj:	Chemical Geology. 158:1-20
ISSN:	0009-2541
Popis:	The geochemical characterization of marine evaporitic oils from the Fazenda Belem oil field, Potiguar Basin, Brazil showed good correlation between both acidic and neutral fractions, and led to the identification of several biomarkers including the homologous series of 3-alkyl- and 3-carboxyalkyl-5α(H) steranes and also the new series of 3-alkyl- and 3-carboxyalkyl-5β(H) steranes. These compounds were identified using GC/MS and their structures were confirmed by coinjection with synthetic standards. A minor series of 4-carboxyalkyl steranes was also detected. The analysis of the acidic biomarkers allowed a more accurate evaluation of maturation, biodegradation and migration of the studied oils.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7060bcbbdd7c74ff0e08ad6b54689bf1 https://doi.org/10.1016/s0009-2541(99)00013-3 Zobrazit plný text záznamu Full Text from ScienceDirect