Publikationsdatum:
2018-03-30
Beschreibung:
We provide a geomorphological analysis of a glacial valley on Mount Pelister, in Macedonia. Three boulders from a
frontal moraine were dated with the cosmogenic nuclide isotope 10Be. The results demonstrate that the boulders have been
exposed since 15.24 ± 0.85 ka. This age constrains the formation of the frontal moraine to the Oldest Dryas cold event. This age
fits with that of other glacier deposits dated to the Older Dryas in the Alps, Balkans, Carpathians and Turkish mountains. The
Pelister palaeoglacier has been reconstructed and its equilibrium line altitude extracted, returning a value of 2250 ma.s.l. This is
in good agreement with the equilibrium line altitudes of most other reconstructed glaciers of the same age in the circum-
Mediterranean mountains, demonstrating a comparable response to the Oldest Dryas event. Other palaeoenvironmental records
near the Pelister mountain indicate that the Older Dryas was here characterized by a cold and remarkably dry event. The
temporal relationship between Older Dryas glacier advances in the Balkan region and recorded changes in the Atlantic
thermohaline circulation during the Laurentide Ice Sheet massive ice discharge (H1 event) confirms the strong climatic link
between the pan-Mediterranean regions and the North Atlantic Ocean.
Beschreibung:
Published
Beschreibung:
100-110
Beschreibung:
5A. Paleoclima e ricerche polari
Beschreibung:
JCR Journal
Schlagwort(e):
geomorphology
;
glacier
;
Oldest Dryas
;
Macedonia (FYROM)
Repository-Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Materialart:
article
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