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Archive for June 18th, 2010

A map of Lake Dwight from Marlyn Magnus’ 1957 thesis.
In 1957, Vassar student Marlyn Mangus completed a senior thesis in Geology in which she identified and mapped the boundaries of a glacial lake that formed in front of the retreating Laurentide ice sheet.  This lake, which she named Lake Dwight, is thought to underlie much […]

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