Presentation on theme: "Combining low temperature apatite thermochronology and cosmogenic isotope analysis in quantitative landscape evolution studies Roderick Brown, Hermione."— Presentation transcript:
Combining low temperature apatite thermochronology and cosmogenic isotope analysis in quantitative landscape evolution studies Roderick Brown, Hermione Cockburn, Barry Kohn, David Belton, David Fink, Andrew Gleadow and Michael Summerfield The University of Melbourne Australian Nuclear Science & Technology Organisation The University of Edinburgh
Conclusions Measured denudation rates and chronologies for the Gamsberg, Drakensberg and Brown Mountain escarpments are incompatible with a steady, parallel retreat model Combined thermochronologic and cosmogenic datasets are capable of quantifying passive margin escarpment retreat rates A viable alternative model involves the establishment of an escarpment at a major inland drainage divide with moderate to low subsequent retreat rates
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