Organic geochemistry and biological marker geochemistry of Schei Point Group (Triassic) and recovered oils from the Sverdrup Basin (Arctic Islands, Canada)
作者： Fariborz Goodarzi , A. F. Embry , P. W. Brooks , R. Stewart
DOI: 10.35767/GSCPGBULL.40.3.173
关键词: Source rock 、 Geochemistry 、 Maturity (geology) 、 Organic geochemistry 、 Arctic 、 Geology 、 Sverdrup 、 Group (stratigraphy) 、 Structural basin 、 Kerogen
摘要: ABSTRACT A total of forty-two hand-picked cutting samples from the Schei Point Group (Triassic) Sverdrup Basin have been examined using organic geochemical techniques, including Rock-Eval pyrolysis, saturate fraction gas chromatography and chromatography-mass spectrometry. solvent extract data show shales within group to be good excellent source rocks. The main matter is believed Type II kerogen with a predominant algal origin. range in maturity immature on southern rim basin overmature at centre. Biological marker maturation parameters shown useful estimating possible uplift histories Group. Indeed, biological analysis that there correlation extracts mature recovered oils (7 samples) basin. Regional trends, interpreted combination parameters, parallel restored isopach contours generally correlate well distribution discovered hydrocarbons. RESUME Un de quarante-deux echantillons debris forage preleves la du groupe (Triassique) bassin ont ete examines l'aide techniques geochimie organique, incluant pyrolyse Rock-Eval, chromatographie en phase gazeuse saturee et gazeuse-spectrometrie masse. Les donnees d'extraction par solvants montrent que les ce sont bonnes excellentes roches meres. La principale matiere organique est kerogene ayant une origine alguaire predominante. varient maturite d'immatures au bord sud super-matures centre bassin. L'utilite des parametres marqueurs biologiques pour estimer histoires soulevement demontree. En effet, l'analyse qu'il y bonne entre matures huiles obtenues echantillons) dans le tendances regionale, interpretees partir d'une combinaison geochimiques, paralleles aux isopaques restaures generalement bon accord avec hydrocarbures decouverts. Traduit Patrice Caritat
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