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SUMMARY:Fractionation effects in turbidity currents - Bill McCaffrey\, Uni
 versity of Leeds
DTSTART:20100202T163000Z
DTEND:20100202T173000Z
UID:TALK21995@talks.cam.ac.uk
CONTACT:John Maclennan
DESCRIPTION:Turbidity currents are a form of generally discrete\, relative
 ly dilute\, submarine\, particulate gravity current.  They are the princip
 al means whereby coarse clastic material is transported into the deep ocea
 ns\, constitute a significant hazard to submarine infrastructure and form 
 deposits (turbidites) of economic interest due to their potential role as 
 hydrocarbon reservoirs.   Turbidites and related deposits commonly show sp
 atial trends in their characteristics (both vertically and laterally) that
  can be related to the spatio-temporal evolution of the structure of the d
 epositing flow.    Experimental and field data indicate that flow fraction
 ation is implicated in the development of such heterogeneity in flow struc
 ture\, and can induce changes in both flow rheology and depositional regim
 e.   As well as being expressed in the deposits of individual events\, the
 se forms of self organisation at the flow scale also find expression at la
 rger scale\, and may indirectly indicate the dynamic evolution of the depo
 sitional systems (submarine fans) that such flows build. 
LOCATION:Harker 1 seminar room\, Department of Earth Sciences
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