These so-called "ghost glaciers" have traditionally been difficult to study because of the lack of physical evidence.
In most cases, glaciers are very effective agents of erosion, shaping and sculpting the landscapes they cover. Even after they have retreated, the evidence preserved on the land surface clearly points to the presence of glaciers in the past. Lee Corbett investigates the chemical evidence preserved in rocks. By looking at rare isotopes that form in rock surfaces due to bombardment by high-energy cosmic rays, Lee can infer information about when these surfaces were covered by non-erosive ghost glaciers.
Life Sciences Building
Tuesday, December 3, 2013
2 to 4 PM
Free with current Dartmouth I.D. shown at the door.
Events are free and open to the public unless otherwise noted.