Constraining vertical range of the SE Laurentide Ice Sheet using surface exposure dating (9/14/23)

Presentation Summary: At the height of the last ice age most of the northeastern United States was covered by the Laurentide Ice Sheet. Much is known about how the margin retreated northwards during the transition to warmer climates. What is less well known is how the surface of the ice sheet responded. Here we present surface exposure ages from mountain peaks in the Adirondack Mountains, along with description of an ongoing project, that help fill in that knowledge gap.

Speaker Bio: Aaron M. Barth was raised in the D.C. Metropolitan area and cut his geologic teeth visiting the Appalachian and Blue Ridge mountains. After receiving a B.S. from George Mason University, he was inspired by the glacial landscapes of Ireland and pursued a PhD at Oregon State University. Now an assistant professor at Rowan University, Aaron leads the Rowan Cosmogenic Nuclide Laboratory studying past ice sheets and glaciers.