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. As a contribution to the palaeoenvironmental history reconstruction of the Alpine periglacial domain, this study focuses on the Schmidt hammer exposure-age dating (SHD) of (peri-)glacial landforms using rebound-value (R-value) calibrations for 10 stations in the Scaradra glacier forefield (north-eastern part of the Ticino Canton, Lepontine Alps) and for 13 stations in the Splügenpass region (located between Switzerland andItaly, Rhaetian Alps). Linear calibration based on the known age of severalmoraines of the Scaradra glacier assessed by historical cartography allowedthe reconstruction of the glacier fluctuations around the end of the LittleIce Age. Timing of deglaciation and of rock glacier development was definedin the Splügenpass region using the calibration of exposure ages basedon two mule tracks built in 300 CE and 1250 CE, respectively. Discussion on R-value analysis and calibration improves the knowledge on the potential use of SHD for numerical-age dating in Alpine geomorphological studies.

geographica helvetica

Schmidt hammer exposure-age dating of periglacial and glacial landforms in the Southern Swiss Alps based on &amp;lt;i&amp;gt;R&amp;lt;/i&amp;gt;-value calibration using historical data