07 March, 2008 Ushuaia Tierra del Fuego Argentina

Sediment Transfer from Shelf to Deepwater - Revisiting the Delivery Mechanisms

3-7 March 2008
  |  
Ushuaia, Argentina

 

Conference Description

In recent years, an increasing amount of data supports the fact that fluvial currents can enter the sea with a density which often exceeds that of marine waters. These relatively dense currents originate during floods, where the excess in density is related to the high suspended load carried by the freshwater discharge. The situation in which the density of the incoming flow is greater than the receiving basin is known as hyperpycnal flow. Although poorly documented for ancient strata, hyperpycnal flows seem to be very common phenomena. Hyperpycnal discharges provide a non-conventional mechanism that allows the basinward transfer of huge volumes of sediments.

Purpose

The aim of this conference is to review the different mechanisms of clastic sediment transfer from continental areas to the shelf and deep waters. The main topics will include processes and recent/ancient deposits related to:

  • Hyperpycnal flows and hyperpyenites (deposits)
  • Mass transport complexes (MTC)
  • Classical (resedimented) turbidites
  • Potential of inner shelf as a sediment trap

Technical Themes

This Research Conference will target specialists in related disciplines to promote broad constructive discussions and perhaps new understanding in sedimentary transfer mechanisms.

  • What are the mechanisms that control and affect the distribution of hyperpycnal flows (river generated turbitidtes)?
  • What are the relationships between hyperpyenites and contourites, conventional turbidites, and MTCs?
  • How important are the delivery mechanisms (rivers) versus the base level change to deliver sediments to basin floor?
  • How can the hyperpycnal paradigm influence oil exploration?

 

 

The conference will be broken into three days of oral presentations with additional abstracts accommodated through poster sessions. A two-day field trip will be run after the meeting. The Austral Foreland Basin has magnificent outcrops of Tertiary hyperpycnal deposits exposed along kilometers of marine cliffs located in the northeast coast of Tierra del Fuego. The high quality exposures of hyperpycnal channels, channel-levee transitions and lobes will promote a very constructive discussion and critcism among the attendees.

Conference Conveners

Carlos Zavala - UNS, CONICET, PDVSA, Venezuela

Eduardo Olivero - CADIC, CONICET, Ushuaia, Argentina

Juan José Ponce - CADIC, CONICET, Ushuaia

Stanley Wharton - BP Trinidad & Tobago

Helena Gamero - Schlumberger Venezuela

Carmen C. Contreras - Schlumberger Venezuela

Ronald J. Steel - The University of Texas at Austin

Roger M. Slatt - The University of Oklahoma

Cornel Olariu - The University of Texas at Dallas

Emmanuel Chapron - Geological Institute, Zürich, Switzerland

Manuel Delgado - PDVSA, Venezuela

Marco Sanguinetti - Schlumberger Mexico

Las Hayas Ushuaia Resort
Luis Fernando Martial 1650
Ushuaia V9410
Argentina
Ushuaia, Argentina - Las Hayas Ushuaia Resort Ushuaia, Argentina - Las Hayas Ushuaia Resort 17564 Las Hayas Ushuaia Resort

 

 


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