--> Abstract: Terminology and Classification for Submarine Fans, Turbidite and Related Systems Based upon Seismic Data, Wireline Logs, and Cores, by V. Kolla, P. Weimer, and G. C. Robinson; #91012 (1992).
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ABSTRACT: Terminology and Classification for Submarine Fans, Turbidite and Related Previous HitSystemsNext Hit Based upon Seismic Data, Wireline Logs, and Cores

KOLLA, V., Elf Exploration Inc., Houston, TX, PAUL WEIMER, University of Colorado, Boulder, CO, and GARY C. ROBINSON, Elf Exploration Inc., Houston, TX

Terminologies have developed for describing submarine fans and turbidite Previous HitsystemsNext Hit based on different data sources--seismic data (multifold and high resolution), side-looking sonar Previous HitsystemsNext Hit, bottom photographs, outcrop, cores, and wireline logs. Each of these data sets images turbidite Previous HitsystemsNext Hit at a certain scale and resolution. The parameters derived from these data sets are primarily morphologies, and vertical and lateral facies associations in various degrees of detail. We propose that a nomenclature and classification for submarine fan environments be based upon these parameters derived from the differing perspectives. At the same time, the nomenclature system should be flexible enough to incorporate any details that might be obtained with increased resolution of data sets.

From multifold and high-resolution seismic data, the following turbidite elements can be identified consistently in large, modern submarine fans: channel-fill, levee, overbank, slides/slumps, unchannelized basinal sediments (lobes, sheets/lobes), and deformed levees. In ancient, buried turbidite Previous HitsystemsNext Hit also, these elements can be identified from seismic data and especially with the integration of wireline logs and/or cores. With these additional data, a higher resolution can be achieved and more subfacies within the general environments can be interpreted in far greater detail. Details on channel-fill patterns and their variabilities, depositional lobe facies, and mass transport facies (slides, slumps, mass transport complexes, debris aprons) can be more completely delineated. Furthe details in the vertical and lateral facies associations, sedimentary processes, and three-dimensional geometries of facies can also be interpreted with the additional data bases.

Most turbidite Previous HitsystemsNext Hit occur in the lowstand Previous HitsystemsNext Hit Previous HittractsNext Hit. However, any and all of these turbidite elements can continue and indeed develop to a significant degree during the deposition of other Previous HitsystemsNext Hit Previous HittractsNext Hit. We propose that terminology should remain descriptive and be devoid of Previous HitsystemsNext Hit Previous HittractsNext Hit terminology to avoid further nomenclatural problems, although it is essential that the depositional Previous HitsystemsNext Hit should be examined within a sequence stratigraphic framework. In addition, the forcing of stratigraphic packages within the lowstand Previous HitsystemsNext Hit Previous HittractsNext Hit into one or two Previous HittypesNext Hit of "fans" tends to obfuscate the depositional processes, setting, and hence the variabilities characteristic of turbidite Previous HitsystemsTop.

 

AAPG Search and Discovery Article #91012©1992 AAPG Annual Meeting, Calgary, Alberta, Canada, June 22-25, 1992 (2009)