Massoud, M.S., Killops, S.D., Scott, A.C. and Mattey, D. (1991) Oil source rock potential of the lacustrine Jurassic Sim Uuju formation, West Korea Bay Basin. Part 1. Oil source rock correlation and environment of deposition. Journal of Petroleum Geology, 14 (4).
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The offshore West Korea Bay (WKB) Basin is one of several NE-SW rift basins which formed over thick continental crust in Korea and eastern China during the Late Mesozoic and Early Cenozoic, and is characterized by a two-layered structure, with a Cenozoic structure superposed on a pre-Teriary basin. Paraffinic oils recovered from Mesozoic and Tertiary sandstone intervals are thought to have been generated from different source beds. The Sim Ujuu Formation consists mainly of fluvially derived shales and sandstones deposited in a large, open, fresh-water, deep tectonic lake, which occupied wide sub-basins formed by normal faults under a semi-humid climate, as a result of initial rifting during the Upper Jurassic. A probable source bed (400- to 500- m thick) has been geochemically located in the basinal offshore area of the Sim Ujuu sequence penetrated by Well 606. The Jurassic bed could be considered as a potential source for the Mesozoic oil, provided that it contains the right type and amount of organic matter which has reached the stage of oil generation.
This is a Published version This version's date is: 10/1991 This item is peer reviewed
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Posted for use in private study and research. Copyright 1991 Scientific Press, whose kind permission is acknowledged. Research group website: http://www.gl.rhul.ac.uk/palaeo/palaeo.html