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SUMMARY:The timing and rate of deglaciation along the north Svalbard margi
 n - Dr Bill Austin\, University of St Andrews
DTSTART:20120201T163000Z
DTEND:20120201T173000Z
UID:TALK35810@talks.cam.ac.uk
CONTACT:Steven Palmer
DESCRIPTION:The changing Arctic environment is of particular interest at t
 he present time\, with important implications for marine ecosystem structu
 re\, biodiversity and functioning. In this seminar\, I will outline some n
 ew work on faunal assemblages from the north Svalbard margin and present p
 reliminary results from a marine sediment core (JM10-03GC) from the mouth 
 of Wijdefjorden\, NW Svalbard. I will focus on the challenges of building 
 a chronology for the core based on 14C dating of marine shell material and
  pay particular attention to the evidence for Atlantic water incursion ont
 o the north Svalbard shelf during the Younger Dryas – Holocene transitio
 n. I will then broaden the discussion of the seminar to look at the questi
 on of the timing and rate of change in other North Atlantic records which 
 span this time interval\, highlighting the significance of a mechanistic l
 ink between the strength of the Atlantic’s overturning circulation and t
 he spatial-temporal changes in the 14C age of surface waters (e.g. Austin 
 et al.\, 2011).
LOCATION:Scott Polar Research Institute\, main lecture theatre
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