Seismic expression of contourites and related deposits: a preface
Seismic expression of contourites and related deposits: a preface
Abstract Contourites are widespread throughout the deep sea, ranging from those that build up individually distinct bodies (mounded drifts) to those that occur closely interbedded with other deep-water facies. Although seismic data should not be used to make a firm identification of contourites without supporting evidence, much progress has been made in determining the combination of seismic criteria that best represent contourite deposits. With some modifications and additions, these criteria are in broad agreement with those recently proposed by Faugères and colleagues (1999). The papers in this special issue are mainly drawn from those presented at an IGCP workshop held in Trieste, Italy (October 2000), together with selected additions. Some of the new and important topics covered include: discussion of bottom-current controlled deposits on continental shelves and in large lakes (shallow-water and lacustrine "contourites''); the unique characteristics of high-latitude contourite systems that show interaction with turbidity current, debris flow and glacigenic processes; and the importance of local slope topography, developed as a result of synsedimentary tectonics and downslope mass movement, in focussing and shaping drift deposits (infill and fault-related drifts). An introduction to the powerful use of 3D seismic data in understanding contourite systems points the way towards important future research.
contourites, diagnostic criteria, drift types, geometry, seismics
303-308
Rebesco, M.
76c9dac1-c407-41d3-9ad2-7932653da029
Stow, D.
152d87b0-6532-4f22-a2b9-4e76b0a83b0b
2001
Rebesco, M.
76c9dac1-c407-41d3-9ad2-7932653da029
Stow, D.
152d87b0-6532-4f22-a2b9-4e76b0a83b0b
Rebesco, M. and Stow, D.
(2001)
Seismic expression of contourites and related deposits: a preface.
Marine Geophysical Researches, 22 (5-6), .
(doi:10.1023/A:1016316913639).
Abstract
Abstract Contourites are widespread throughout the deep sea, ranging from those that build up individually distinct bodies (mounded drifts) to those that occur closely interbedded with other deep-water facies. Although seismic data should not be used to make a firm identification of contourites without supporting evidence, much progress has been made in determining the combination of seismic criteria that best represent contourite deposits. With some modifications and additions, these criteria are in broad agreement with those recently proposed by Faugères and colleagues (1999). The papers in this special issue are mainly drawn from those presented at an IGCP workshop held in Trieste, Italy (October 2000), together with selected additions. Some of the new and important topics covered include: discussion of bottom-current controlled deposits on continental shelves and in large lakes (shallow-water and lacustrine "contourites''); the unique characteristics of high-latitude contourite systems that show interaction with turbidity current, debris flow and glacigenic processes; and the importance of local slope topography, developed as a result of synsedimentary tectonics and downslope mass movement, in focussing and shaping drift deposits (infill and fault-related drifts). An introduction to the powerful use of 3D seismic data in understanding contourite systems points the way towards important future research.
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Published date: 2001
Keywords:
contourites, diagnostic criteria, drift types, geometry, seismics
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Local EPrints ID: 6128
URI: http://eprints.soton.ac.uk/id/eprint/6128
ISSN: 0025-3235
PURE UUID: 6337699f-7b8c-46a8-a682-e029be6b1a8b
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Date deposited: 29 Jun 2004
Last modified: 15 Mar 2024 04:47
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Author:
M. Rebesco
Author:
D. Stow
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