Cosmogenic isotope surface exposure dating

This diagram, showing thinning of an ice sheet from the Last Glacial Maximum (LGM) to present day, helps to visualise how this works: When an ice sheet thins, rocks transported within it (erratics – shown here as red circles) are left perched on mountainsides – known as ‘nunataks’ when surrounded by ice – at a range of heights above the modern ice sheet surface.

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This work was done in collaboration with Julie Libarkin at Ohio University.

Work continues with Doug Burbank at UCSB and Caltech graduate student Willy Amidon.

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Last modified 03-Jan-2020 12:48