The LDEO Cosmogenic Nuclide Group develops terrestrial cosmogenic nuclide techniques and applies those as chronometers and tracers in the Earth Sciences. Terrestrial cosmogenic nuclides are produced by interactions between secondary cosmic rays and near surface rocks. Our research interests cover a wide spectrum of earth scientific disciplines and include timing of ice ages, subglacial erosion rates, uplift rates of Pleistocene terraces, and a better understanding of the production systematics of cosmogenic nuclides. We apply the full spectrum of cosmogenic nuclides, including the routine extraction of 10 Be, 26 Al, and 36 Cl. In cooperation with Gisela Winkler and the LDEO Noble Gas Group. We also routinely measure cosmogenic 3 He. Recently, we have pioneered the terrestrial 53Mn technique as new monitor of earth surface processes, and we also have established an extraction line for in situ 14 C from quartz.
DRONE IMAGERY OF GLACIERS AND MORAINES
A 3-dimensional model of the Mont Fort and Sivier glacier system, showing well-preserved 'Egesen' and 'pre-Egesen' moraine systems that are studied to understand the glacier and climate changes during the Late Glacial Period (14.5 - 11 ka ago) in the Swiss Alps. Similar drone-imagery based 3-dimensional reconstructions in the Alps and Arctic Norway and beyond are in preparation by PhD candidate Josh Maurer: https://skfb.ly/UBZt