Klimagesteuerte Denudationsraten und Sedimentfrachten der letzten 15.000 Jahre im Seebachtal bei Mallnitz, Hohe Tauern

Abstract

Measuring cosmogenic, in-situ produced 10Be in fluvial quartz-sands out of a 160 m long sediment drill core from the aggrading delta area of Lake Stappitz (Nationalpark Hohe Tauern) allows to determine catchment-wide denudation rates from the catchment of the Seebach Valley. The large dataset of over 25 samples for the last 15,000 years is compared with well documented climate fluctuations in the Alps. Denudation rates and derived sediment yields over the considered time period were very variable. The dominant influence of both climatic parameters “frequency of heavy rainfall” and “temperature” on the denudation rates was quantified.