University of Cambridge > Talks.cam > Scott Polar Research Institute - Physical Sciences Seminar > The timing and rate of deglaciation along the north Svalbard margin

The timing and rate of deglaciation along the north Svalbard margin

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The changing Arctic environment is of particular interest at the present time, with important implications for marine ecosystem structure, biodiversity and functioning. In this seminar, I will outline some new work on faunal assemblages from the north Svalbard margin and present preliminary 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 onto the north Svalbard shelf during the Younger Dryas – Holocene transition. I will then broaden the discussion of the seminar to look at the question of the timing and rate of change in other North Atlantic records which span this time interval, highlighting the significance of a mechanistic link between the strength of the Atlantic’s overturning circulation and the spatial-temporal changes in the 14C age of surface waters (e.g. Austin et al., 2011).

This talk is part of the Scott Polar Research Institute - Physical Sciences Seminar series.

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