DBPapers
DOI: 10.5593/SGEM2014/B11/S5.075

RELATIVE DATING THROUGH LICHENOMETRY OF THE PERIGLACIAL LANDFORMS FROM THE UPPER BASIN OF CAPRA VALLEY, FAGARAS MOUNTAINS, ROMANIA

R. Putan
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-07-0 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 1, 573-580 pp

ABSTRACT
Făgăraș Mountains were an interesting subject for many researchers during time, for they are the highest mountains in Romania, and they represent the place where glacial and periglacial landforms are specific. We will analyse the specifics of periglacial landforms in the Upper basin of Capra Valley in Făgăraș Mountains, as being representative for this area. Periglacial landforms as debris slope, rock glaciers, avalanche paths are very complex and various. For a better understanding of the dynamism of these landforms, determined by the frosting-thaw processes, different lichenometric methods and Schmidt Hammer tests were apply. The largest lichen from a landform is the oldest from that area, so we measured the period when the surface of the rocks started to weathered. We determined the relative age of the landform and periods with intense dynamism. For a better understanding of the frosting-thaw processes, the Schmidt Hammer tests were applied on the landforms but also on the steep slope nearby. We compared the results with other similar studies from Alps and Tatra Mountains, to improve the understanding of periglacial landforms dynamism of the last 200 years or even more, from the Romanian Carpathian Mountains, being the first study that used lichenometric methods on this area.

Keywords:lichenometry, Schmidt Hammer tests, periglacial landforms, Făgăraș Mountains