Fine-Grained Turbidite Systems: Overview
Fine-grained, mud-rich turbidite systems primarily occur in basins with a large fluvial input. Depositional models derived from sand-rich turbidite systems are not appropriate because the large volume of mud in fine-grained turbidite systems produces different sediment distribution patterns, geomor-phic features, and internal architecture at bed-to-sequence scales. Many of the chapters in this volume demonstrate that understanding fine-grained turbidite systems requires a number of steps and degrees of resolution, very similar to the range of data utilized in the oil industry. Industrial examples include 2-D and 3-D seismic, cores, and well logs. To refine the understanding of a turbidite field, the earth scientist must integrate the most applicable models with subsurface data, outcrop analyses, modern analogs, and experimental results.
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This Memoir covers one of the most important and active exploration reservoirs being pursued by geoscientists worldwide: fine-grained turbidite systems. 28 chapters show the results of an intense research effort in the 1990s that resulted from the discovery of large hydrocarbon accumulations in fine-grained turbidite systems in Brazil, the Gulf of Mexico, West Africa, and the North Sea. Industry and academia have joined together in this publication and the result is a unique opportunity to study these turbidite systems from the outcrop to the modeling; through the interpretation with 2-D and 3-D seismic data; to case histories and analog studies from Arkansas and Oklahoma, South and West Africa, Gulf of Mexico, west Texas, and New Zealand.