The sampling goal of this trip was to obtain a record of Holocene climate change recorded in the sediments. The coring bottomed out in alluvial sand and the group hopes to date the organic material in the core immediately above the sand layer to provide an idea of when the Glacial River Warren last occupied the valley. There is currently a controversy over whether the southern outlet for Lake Agassiz was occupied twice, as has been formerly proposed, or just once, as Tim Fisher of the University of Indiana believes.
Carrie heads for the ice with her son Parker making sure the supplies don't jump out of the taboggan.
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