Last Glacial Maximum

Mineral dust plays an important role in regulating earth’s climate.  Some of this dust comes from mountain glaciers grinding up rocks over long periods of time. (Bess Koffman)

Did New Zealand Dust Influence the Last Ice Age?

Bess Koffman, a postdoctoral researcher at Lamont-Doherty Earth Observatory, recently traveled to New Zealand to collect dust ground-up by glaciers during the last ice age. In this photo essay, she explains how she collected the dust, what analysis looks like in the lab and what she hopes to learn.

by |March 13, 2014