Architectural Patterns in Large-Scale Gilbert-Type Delta Complexes, Pleistocene, Gulf of Corinth, Greece
Published:January 01, 1991
Gian gabriele Ori, Marco Roveri, Gary Nichols, 1991. "Architectural Patterns in Large-Scale Gilbert-Type Delta Complexes, Pleistocene, Gulf of Corinth, Greece", The Three-Dimensional Facies Architecture of Terrigenous Clastic Sediments and its Implications for Hydrocarbon Discovery and Recovery, Andrew D. Miall, Noel Tyler
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Large-scale Gilbert-type delta deposits occur on the southern side of the Gulf of Corinth in Greece. They accumulated adjacent to the very steep margins of listric-fault blocks. The deltaic complexes consist of very thick (up to 700 m) foreset packages that pass into bottomset strata, which, in turn. pass into thin-bedded turbidites. Topset deposits are well preserved and are the keys to interpreting the fan-delta bodies in architectural terms. The geometric pattern is discussed in terms of accommodation, that is the vertical space made available for the sedimentation. Where there is no accommodation, the topset environment is bypassed and, geometrically, toplap boundaries occur. With increasing accommodation, fluvial topset strata are formed: they pass downdip into the foreset beds. At higher accommodation values, transgressive deposits occur. If accommodation is too high, the transgressive sediments are drowned and foreset beds form on top.
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The Three-Dimensional Facies Architecture of Terrigenous Clastic Sediments and its Implications for Hydrocarbon Discovery and Recovery
While there has been much interest in recent years in concepts of sequence stratigraphy, this book focuses on stratigraphic units that are, in general, an order of magnitude smaller than sequences. A knowledge of such architectural detail is of considerable significance in the development of detailed, scaled facies models for depositional environments, and is of paramount importance in the efficient design of advanced petroleum recovery projects. This book is the outcome of a SEPM Research Symposium held at the annual meeting of the Society in San Antonio, Texas, April 1989. The intent of the meeting was to bring together modern research on facies architecture, and to apply this research to the investigation of reservoir heterogeneities and production problems.