Please use this identifier to cite or link to this item:
Authors: Ribolini, A.* 
Isola, I.* 
Zanchetta, G.* 
Bini, M.* 
Sulpizio, R.* 
Title: Glacial features on the Galicica Mountains, Macedonia: preliminary report
Issue Date: 2011
Series/Report no.: /34(2011)
DOI: 10.4461/GFDQ.2011.34.22
Keywords: Mid-latitude glacialism
Glacial geomorphology
Glacier reconstruction
Subject Classification02. Cryosphere::02.02. Glaciers::02.02.03. Geomorphology 
03. Hydrosphere::03.01. General::03.01.06. Paleoceanography and paleoclimatology 
04. Solid Earth::04.04. Geology::04.04.08. Sediments: dating, processes, transport 
Abstract: Glacial features were described for the first time on the Galicia Mountains, a mountain range separating the lakes of Ohrid and Prespa in Macedonia. The geomorphological mapping of part of this range allowed to document the existence of frontal and lateral moraines, as well as trimlines, cirques and polished rocks. These glacial features allowed the reconstruction of the original topography of the glaciers that deposited the frontal moraines. The Equilibrium Line Altitude (ELA) of three different phases of expansion was calculated (ca. 1850 m, ca. 2000 m and 2130 m a.s.l.) through the Area-Altitude Balance Ratio (AABR) method, and correlated with the values available for the Balkan region and northern Greece. An attribution to Last Glacial Maximum (LGM) and Lateglacial (Oldest and Younger Dryas) was argued for the glacial phases of Galicica Mountains, in agreement with the ELAs of dated moraines in the region, as well as in the Apennines and Maritime Alps. Through the extrapolation of summer temperatures at the ELAs for the single glacial phases, the amount of precipitation needed to sustain the glaciers existence was calculated (3500-3700 mm of weq) using a well established polynomial regression. The attribution to the LGM of the lowermost frontal moraine points out to an older age for the till found well below the examined area, near the Prespa Lake shore. This indicates that a more extended glaciation phase occurred during the Middle Pleistocene.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
GFDQ_PP_Ribolini_etal_2011.pdf3.93 MBAdobe PDFView/Open
Show full item record

Page view(s)

checked on Aug 16, 2018


checked on Aug 16, 2018

Google ScholarTM