This one hour live event is hosted by PolarTREC teacher Mike LeBaron and his team studying sub-glacial lakes and streams. The team is at McMurdo Station, Antarctica. This event was part of the December 2012 Antarctica Day celebration. The team also speaks about the importance of the Antarctic Treaty and scientific investigations.
During Lesley Urasky’s expedition, “Glacial History in Antarctica”, the team collected rock samples which were taken back to the University of Washington to be dated using cosmogenic (exposure) dating. This method of radiometric dating measures the ratio of isotopes of Beryllium (9Be:10Be) produced by the interaction of cosmic rays with minerals in rocks. This lesson will introduce the student to