Skip to Main Content
Book Chapter

High Resolution Morpho-Sedimentary Characteristics of the Distal Orinoco Turbidite System

By
Gemma Ercilla
Gemma Ercilla
CSIC-Instituto de Ciencias del Mar Paseo Joan de Borbó, s/n 08039 Barcelona Spain
Search for other works by this author on:
Belén Alonso
Belén Alonso
CSIC-Instituto de Ciencias del Mar Paseo Joan de Borbó, s/n 08039 Barcelona Spain
Search for other works by this author on:
Jesús Baraza
Jesús Baraza
CSIC-Instituto de Ciencias del Mar Paseo Joan de Borbó, s/n 08039 Barcelona Spain
Search for other works by this author on:
Published:
December 01, 2000

Abstract

The distal Orinoco turbidite system (from 4,200 to 5,000 m water depth) has been surveyed with state-of-art, high-resolution acoustic techniques, such as the SIMRAD EM12 multibeam and the SIMRAD TOPAS ultra high-resolution parametric echo sounders. New results indicate that the distal part of this turbidite system shows at least two active systems of sediment transfer, towards the north and towards the east. Both sediment transfer systems depict a large sedimentary complex on which channels with variable sinuosity, degree of incision, and width/relief ratio, braided channels, and distal depositional lobes coexist even in short distances. Such complexity is the result of different patterns of sediment transport of the gravity flows within the turbidite system and of different styles of sedimentation. In addition, the complexity of the east-trending distributary system is accentuated by the probable activity of unchannelized turbidity currents whose interaction with the topography generates a sediment wave field on the right-hand inner margin of this system. The east-trending distributary system connects with the Vidal midocean channel, earlier through a channel that now is filled, and at the present time through a bypass zone of unchannelized debris flows.

You do not currently have access to this article.

Figures & Tables

Contents

GCSSEPM

Deep-Water Reservoirs of the World

Paul Weimer
Paul Weimer
Houston, Texas
Search for other works by this author on:
SEPM Society for Sedimentary Geology
Volume
20
ISBN electronic:
978-0-9836097-0-4
Publication date:
December 01, 2000

GeoRef

References

Related

Citing Books via

A comprehensive resource of eBooks for researchers in the Earth Sciences

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal