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SUMMARY:Sedimentological Regimes for Subaqueous Turbidity Currents - Thoma
 s Halsey\, ExxonMobil Upstream Research Company
DTSTART:20160128T113000Z
DTEND:20160128T123000Z
UID:TALK63445@talks.cam.ac.uk
CONTACT:Catherine Pearson
DESCRIPTION:Subaqueous turbidity currents may be the dominant mechanism by
  which sediments are moved from continents into the deep ocean\; these flo
 ws are critical in the formation of submarine canyons and corresponding su
 bmarine fans. In 1986 Parker\, Fukushima\, and Pantin introduced a depth-a
 veraged mechanical model for these currents\, intending to identify the ci
 rcumstances under which the erosion of underlying material by a turbidity 
 current could lead to an “auto-igniting” sustainable flow. We use a si
 mplified version of their model to map a global regime diagram for these f
 lows as a function of the Richardson and Rouse numbers of the flows\; in d
 ifferent segments of this diagram the flows are predominantly depositional
 \, erosional\, or bypass in nature.
LOCATION:Open Plan Area\, BP Institute\, Madingley Rise CB3 0EZ
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