Author
Listed:
- G. Palmentola
- K. Baboci
- G. J. Gruda
- G. Zito
Abstract
In the Albanian Alps, above 1700 m a.s.1., sixteen inactive rock glaciers have been identified, all colonized by herbaceous vegetation. Assuming a −2°C isotherm for the activity of rock glaciers, and after calculating the atmospheric lapse rate, it is estimated that thermal conditions must have been 6.4°C lower than the present mean annual temperature. Because rock glaciers occupied surfaces covered by ice during the periglacial Würm period, they cannot be older than 14,000‐17,000 years; so they are probably referable to the Dryas. Such a temperature drop took place probably during the Dryas. Dans les Alpes d'Albanie, au dessus de 1,700m d'altitude, 16 glaciers rocheux inactifs ont été identifyés; tous sont colonisés par une végétation herbacée. En admettant qu'une température moyenne annuelle de −2°C ait été nécessaire pour que les glaciers rocheux apparaissent, il est probable que la température moyenne annuelle a été, au moment de la formation des glaciers rocheux, inférieure de 6.4°C à la température actuelle. Parce que les surfaces étaient couvertes par la glace pendant ie pléniglaciaire Würm, elles ne peuvent pas étre apparues avant 14,000‐17,000 ans. De ce fait on peut les attribue probablement au Dryas. Cette baisse de température s'est probablement produite pendant le Dryas.
Suggested Citation
G. Palmentola & K. Baboci & G. J. Gruda & G. Zito, 1995.
"A note on rock glaciers in the Albanian Alps,"
Permafrost and Periglacial Processes, John Wiley & Sons, vol. 6(3), pages 251-257, July.
Handle:
RePEc:wly:perpro:v:6:y:1995:i:3:p:251-257
DOI: 10.1002/ppp.3430060306
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