LS.0006-00J. Stone collecting glacial erratics off Wells Ridge for cosmogenic isotope exposure dating. Rock in foreground is Paleozoic (Cambrian) Swanson Formation, greenschist facies metagraywacke and metaturbidites of oceanic origin.Rock on peaks behind is Byrd Coast Granite, a Cretaceous leucogranite (granite) with A type chemistry. West Antarctica.
LS.0010-00Chris Kugleman searching for glacial erratics on Mt. Spencer. Mt. Darling, & an unnamed tributary to Boyd Glacier is in background. During the Last Glacial Maximum the West Antarctic Ice Sheet was significantly thicker in this area. Cosmogenic Isotope dating allows researchers to reconstruct the paleo surface levels of the glacier. West Antarctica.
LS.0022-00Erratic block(3m) of Beacon Sandstone on lower Ferrar Glacier. Supra-glacial debris behind is volcanic dolerite & Beacon Sandstone. In background is low bluff below Table Mt., Knobhead, & Kukri hills.
Scott's Discovery Expedition found fossils & coal seams in this area, (first clear evidence of balmier climates in the paleo-antarctic). E. Antarctica
LS.0023-00A small granitic erratic on the wind-polished blue ice surface of the Ferrar Glacier, just below the Ferrar/Taylor Gl. junction. In background is shoulder of Table Mountain (far left), the upper Ferrar Glacier, Knobhead (center), Terra Cotta Mountain (with glimpse of Mt. Feather behind it), Windy Gully & New Mountain. E. Antarctica