The Tanqua Fan Complex, Karoo Basin, South Africa—Outcrop Analog for Fine-Grained, Deepwater Deposits
H. Deville Wickens, A. H. Bouma, 2000. "The Tanqua Fan Complex, Karoo Basin, South Africa—Outcrop Analog for Fine-Grained, Deepwater Deposits", Fine-Grained Turbidite Systems, Arnold H. Bouma, Charles G. Stone
Download citation file:
The Permian Tanqua fan complex, SW Karoo Basin, South Africa, is unde-formed and well exposed, allowing 3-D viewing of outcrops that are laterally continuous over tens of kilometers. The complex consists of six sand-rich tur-bidite systems, separated by basin shales. The first five form an incrementally prograding, laterally compensating set, whereas the sixth fan, located to the south, downlaps onto Fan 5. Although deposited in a basin flanked by an oro-genic belt, the Tanqua fan complex has depositional characteristics similar to fans deposited in passive margin settings. It is a fine-grained, mud-rich bypass system deposited within an unconfined basinal setting. The deposits show architectural and reservoir character changes as they occur from the base-of-slope to their distal termination.
Figures & Tables
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.