Surface exposure dating with cosmogenic nuclides


03-Nov-2014 12:35

These samples most likely represent the true age of the moraine.We use these tools to interpret 49 Al surface exposure ages of erratic boulders on six last-glacial and late-glacial moraines at Lago Buenos Aires, Argentina (LBA; 71°W, 46.5°S).

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However, these results highlight the potential to use TCN methods, when used in combination with other dating techniques, to examine and quantify processes such as sediment transfer and denudation in drylands.In situ cosmogenic nuclides have become a powerful means to determine surface exposure ages of boulders on moraines and other landforms that are important to paleoclimate reconstructions.