Last week's GEOS Tuesday featured a panel of PhD students sharing their experiences of the PhD preliminary examination with other grad students. The panel was moderated by Erika Goldsmith and Amy Hagen, with panelists Elizabeth Curtiss, Cece Wood, David Bruce, Karen Williams, and Isaac Pugh.

Undergraduate Saye Woodard shared some photos of the Earth's Dynamic Systems weekend field trip to Martinsville.

The Friday seminar was given by our own Dr. Shuhai Xiao, who spoke on "Lithium isotopes illuminate a snowball Earth."