Terrestrial cosmogenic nuclide dating whpas bolivia dating
Long term rates of uplift have been broadly defined using petrological and structural geological methods, which essentially indicate how quickly rock is brought to the surface and/or exhumed.
Recently, global positioning systems have been used to determine short-term (years-decades) rates of surface displacement.
Sampling stream sands and measuring the TCN concentrations can be directly used to determine basin wide erosion rates (Fig. Such studies are showing strong contrasts between catchments in different climatic and tectonic zones in the Himalaya and Tibet (see Seong et al., 2009b and Dortch et al., 2012 as examples).Production rates of cosmogenic nuclides made in situ in terrestrial samples and how they are applied to the interpretation of measured radionuclide concentrations were discussed at a one-day Workshop held 2 October 1993 in Sydney, Australia.The status of terrestrial in-situ studies using the long-lived radionuclides Be, C, Al, Cl, and Ca and of various modeling and related studies were presented.Numerous strath terraces have been dated using Be-10 throughout the Himalaya (summarized in Dortch et al., 2011).These are providing good estimates for rates of river erosion.
Created by the author of the page containing this file. Sampling river sands in the Beas Valley of the Greater Himalaya of Northern India to determine the concentrations of terrestrial cosmogenic nuclides to calculate rates of catchment wide erosion.