Cosmogenic nuclide and solute flux data from central Cuban rivers emphasize the importance of both physical and chemical mass loss from tropical landscapes
Mae Kate Campbell,Paul R. Bierman,Amanda H. Schmidt,Rita Sibello Hernández,Alejandro García-Moya,Lee B. Corbett,Alan J. Hidy,Héctor Cartas Águila,Aniel Guillén Arruebarrena,Greg Balco,David Dethier,and Marc Caffee
Mae Kate Campbell
Department of Geology, University of Vermont, Burlington, VT 05405,
USA
Gund Institute for Environment, University of Vermont, Burlington, VT 05405, USA
Paul R. Bierman
Gund Institute for Environment, University of Vermont, Burlington, VT 05405, USA
Rubenstein School of the Environment and Natural Resources, the
University of Vermont, Burlington, VT 05405, USA
We used cosmogenic radionuclides in detrital river sediment to measure erosion rates of watersheds in central Cuba; erosion rates are lower than rock dissolution rates in lowland watersheds. Data from two different cosmogenic nuclides suggest that some basins may have a mixed layer deeper than is typically modeled and could have experienced significant burial after or during exposure. We conclude that significant mass loss may occur at depth through chemical weathering processes.
We used cosmogenic radionuclides in detrital river sediment to measure erosion rates of...