Chronology of the deglaciation process in leirbreen glacier (jotunheimen massif, Norway) since the Little Ice Age to the present time
Authors
J. Chueca
Universidad de Zaragoza
A. Julián
Universidad de Zaragoza
Keywords:
Cronología, deglaciación, Pequeña Edad del Hielo, liquenometría, glaciar Leirbreen, Noruega
Abstract
In this work, we analyze the process of deglaciation identified in the Leirbreen glacier, which is located in the western sector of Jotunheimen massif, in southern Norway. The chronological characterization of this process has been made by using lichenometrical techniques, that have allowed us to date a complete morainic sequence, consisting of ten well formed episodes (morainic ridges M1-M10), developed from the mid XVIIIth century, during the Little Ice Age, to the present time (M1: 1755-1760 AD; M2: 1791-1795 AD; M3: 1830-1831 AD; M4: 1842-1845 AD; M5: 1870-1873; M6: 1875-1880; M7: 1902-1905; M8: 1923-1925; M9: 1935-1938; M10: 1958-1960). The data thus obtained are compared with the information available for other sectors of the same massif, examining in particular its possible correlation with the nearby Storbreen glacier.
