George River is a small basin in northeast Tasmania, Australia, known for its long history of tin mining and oyster stocks in Georges Harbour. The goal of this project was to analyze the spatial distribution of millennial-scale erosion rates across the catchment. In the end, we not only calculated erosion rates from measurements of 10Be from stream sand samples, but we also derived denudation rates from meteoric 10Be extracted from stream sediment grain coatings. Read more in the open-access paper below!
Status: Complete
Participants & Collaborators:
Leah VanLandingham (EMU, ENVI Hydrogeology, '19)
Prof. Ted Lefroy, University of Tasmania
Prof. Paul Bierman, University of Vermont
Prof. Amanda Henck Schmidt, Oberlin College
Lawrence Livermore National Laboratory
Funding Sources:
Australian Government’s National Environmental Research Program through the Landscapes and Policy Research Hub based at the University of Tasmania (Awarded to Prof. Lefroy)
Publications
VanLandingham, L, Portenga, EW, Lefroy, EC, Schmidt, AH, Bierman, PR, Hidy, AJ, 2022. Comparison of basin-scale in situ and meteoric 10Be erosion and denudation rates in felsic lithologies across an elevation gradient at the George River, northeast Tasmania, Australia. Geochronology, 4(1), 153–172 (Open-Access).
Presentations
VanLandingham, LA, Portenga, EW, Bierman, PR, Lefroy, T, 2019. Analysis of 10Be-based erosion and denudation rates in the George River Basin, Tasmania, Australia. 2019 Geological Society of America Annual Meeting: Phoenix, Arizona, USA.
VanLandingham, L, 2019. Analysis of meteoric and in-situ 10Be denudation rates in the George River, Tasmania, Australia: Eastern Michigan University Undergraduate Research Symposium, Ypsilanti, Michigan, USA.