Application of the Principles of Seismic Geomorphology to Continental-Slope and Base-of-slope Systems—Case Studies from Seafloor and Near-Seafloor Analogues
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Application of the Principles of Seismic Geomorphology to Continental-Slope and Base-of-slope Systems—Case Studies from Seafloor and Near-Seafloor Analogues
Bradford E. Prather, Mark E. Deptuck, David Mohrig, Berend van Hoorn and Russell B. Wynn
The study of near-seafloor deepwater landscapes and the processes that form them are as important to the understanding of deeply buried marine depositional systems as the study of modern fluvial environments is to our understanding of ancient terrestrial depositional systems. In fact, these near-seafloor studies follow in the great tradition established by earlier clastic sedimentologists in the use of modern systems to understand ancient environments. The acquisition and mapping of exploration 3D seismic surveys over the last few decades allows for the study of seafloor geomorphology with a spatial resolution comparable to most deepwater multibeam bathymetric tools, and represents a significant advancement that can be used to push forward general understanding of slope and base-of-slope depositional systems through the application of the emerging science of seismic geomorphology. The papers assembled for this volume demonstrate the utility of seafloor-to-shallow subsurface data sets in studying the development of submarine landscapes and their affiliated sedimentary deposits. These contributions highlight the controls of slope morphology on patterns of both sedimentation and erosion. Many of the papers also highlight the influence of pre-existing seafloor relief on confining sediment-gravity flows specific transport pathways, thereby affecting subsequent evolution of the seafloor. The understanding of depositional processes that comes from studying deepwater analogue systems remains the best way take to knowledge from one basin or system and apply confidently to another for prediction and characterization of reservoirs for exploration and production of hydrocarbons.
PDF ebook file size: 300 mb
ISBN 978-1-56576-331-9
eISBN 978-1-56576-304-3
Title information
CONTENTS
Introduction
Introduction
Bradford E. Prather, Mark E. Deptuck, David Mohrig, Berend Van Hoorn, and Russell B. Wynn
Shelf-to-Slope Transition
Architecture of an aggradational tributary submarine-channel network on the continental slope offshore Brunei Darussala
Kyle M. Straub, David Mohrig, and Carlos Pirmez
Seismic stratigraphy of a shelf-edge delta and linked submarine channels in the northeastern Gulf of Mexico
Zoltán Sylvester, Mark E. Deptuck, Bradford E. Prather, Carlos Pirmez, and Ciaran O’Byrne
Erosional and depositional features of glacial meltwater discharges on the eastern Canadian continental margin
David J.W. Piper, Mark E. Deptuck, David C. Mosher, John E. Hughes Clarke, and Sébastien Migeon
Slope Aprons
Stratigraphy of linked intraslope basins: Brazos–Trinity System western Gulf of Mexico
Bradford E. Prather, Carlos Pirmez, and Charles D. Winker
Chronostratigraphy of the Brazos–Trinity Depositional System, western Gulf of Mexico: Implications for deepwater depositional models
Carlos Pirmez, Bradford E. Prather, Gianni Mallarino, Walter W. O’Hayer, Andre W. Droxler, and Charles D. Winker
Stratigraphic response to evolving geomorphology in a submarine apron perched on the Upper Niger delta slope
Bradford E. Prather, Carlos Pirmez, Zoltán Sylvester, and Daniel S. Prather
Stratigraphic evolution of a tortuous corridor from the stepped slope of Angola
Deirdre C. Hay
Evolution of an intra-slope apron, offshore Niger Delta slope: Impact of step geometry on apron architecture
Mark D. Barton
Pleistocene seascape evolution above a “simple” stepped slope—western Niger Delta
Mark E. Deptuck, Zoltán Sylvester, and Ciaran O’Byrne
Slope Valleys
Accommodation change during bypass across a late-stage fan in the shallow Auger Basin
Charles W. Bohn IV, Peter B. Flemings, and Rudy L. Slingerland
Interactions between coeval sedimentation and deformation from the Niger Delta deepwater fold belt
Ian R. Clark, And Joseph A. Cartwright
Architectural changes and preferential sand deposition in a confined channel–levee system forced to surmount a ridge crest
Efthymios K. Tripsanas, Eddy Lee, Willem Huck, and R. Craig Shipp
Paleoceanography insights from a channel system in the Pleistocene foredeep basin of the Adriatic (Mediterranean Sea)
Daniel Minisini, Luca Baglioni and Patrizia Rocchini
Base of Slope to Abyssal Plain
The Kramis deep-sea fan off western Algeria: Role of sediment waves in turbiditic levee growth
Nathalie Babonneau, Antonio Cattaneo, Bruno Savoye, Guy Barjavel, Jacques Deverchère, and Karim Yelles
3D seismic stratigraphy and evolution of upper Pleistocene deepwater depositional systems, Alaminos Canyon, northwestern deep Gulf of Mexico
Shu Jiang, Paul Weimer, Sverre Henriksen, and William S. Hammon III
Alternating bottom-current-dominated and gravity-flow-dominated deposition in a lower slope and rise setting—Insights from the seismic geomorphology of the western Scotian margin, Eastern Canada
D. Calvin Campbell, And Mark E. Deptuck
Morphology and internal structure of a recent upper Bengal fan-valley complex
Venkatarathnam, Kolla, Anindya Bandyopadhyay, Pankaj Gupta, Brunti Mukherjee, and Devulapalli V. Ramana
The influence of subtle gradient changes on deep-water gravity flows: A case study from the Moroccan turbidite system
Russell B. Wynn, Peter J. Talling, Douglas G. Masson, Tim P. Le Bas, Bryan T. Cronin, and Christopher J. Stevenson
PDF ebook file size: 300 mb