University of Cambridge > Talks.cam > Scott Polar Research Institute - Physical Sciences Seminar > The glaciation of the Antarctic Peninsula: a journey through time

The glaciation of the Antarctic Peninsula: a journey through time

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If you have a question about this talk, please contact Poul Christoffersen.

The Antarctic Peninsula is warming rapidly. This warming is responsible for increased glacier and ice-shelf melting, ice-shelf collapse, glacier retreat and acceleration. If we want to put these much-publicised recent events into their wider context, we have to look back in time through the Quaternary for evidence of former ice volume, controls on ice-volume changes and past rates and magnitudes of change. The Antarctic Peninsula is a good place to do this because it contains a well-preserved record of marine and terrestrial glaciations. In this talk, I will present new evidence from fieldwork on James Ross Island about the location and extent of former ice-steams that impinged on the island. I will also present new cosmogenic isotope dates from erratic boulders transported onto James Ross Island from the Antarctic Peninsula and comment on when this former ice stream existed.

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

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