Petroleum Source Rocks

abundance Albian algal Anisian anoxic Assoc Pet Geol Assoc Petrol Geol Austin Chalk Barremian biomarker bitumen Brown Shale Bucomazi Campos basin carbon isotope Central Sumatra chromatograms clastic composition depositional environments depth Devonian Dezful Eagleford Formation Egret Egret Member Exshaw Exshaw Formation facies gammacerane geochemical geochemistry Graben Green River Gulf of Suez Hanifa hopane hydrocarbon hydrogen index immature indices Jeanne d'Arc basin Jurassic Katz Kazhdumi kerogen kerogen types Kimmeridge Clay Kimmeridge Clay Formation lacustrine lake lower Lurestan marine marls mg HC/g rock migration Moldowan mudstones n-alkanes Napo North Sea oil-prone organic carbon content organic enrichment organic matter organic-rich oxygen Pematang Pet Geol Bull petroleum source rocks pyrolysis Qingshankou range ratios reservoirs rift Rock-Eval S₂ samples sedimentary sediments sequence shallow source rocks steranes stratigraphic thermal maturity thickness tion Tmax Toarcian Tricyclic terpane trough Tuwaiq Mountain unit Upper values vitrinite vitrinite reflectance zone