ABSTRACTS / RESUMES - Comitato Glaciologico Italiano

events, so that their impact can be accurately considered in
landuse management and projects implementation, in order
to avoiding further damages and heavy losses among
local populations.
ERIC FOUACHE 1, JEAN-JACQUES DUFAURE 1,
MICHELE DENEFLE 2, PETRIKA LERA 3, FRANO PRENDI 4
& GILLES TOUCHAIS 5 •
The relationships between man and his environment
around Lake MaIiq (Albania) in the Holocene period
1 Universite Paris IV et Ura 141 Cnrs, Ufr de Geographie,
191 rue Saint-Jacques 75005 Paris, France
2 Ura 141 Cnrs, 1 place A. Briand 92195 Meudon, France
3 Musee Archeologique de Kerce, Albanie
4 Institut Archeologique de l'Academic des Sciences
de la Rcpublique d' Albanie, Tirana
5 Universite Paris I, Ufr d'Art et d'Archeologie,
3 rue Michelet 75006 Paris, France
Lake Maliq is situated in thegreco-macedonian border of
South- East Albania, north west of the graben of Korce, at
an altitude of 800 m. A thick layer of turf formed itself in
the Holocene period and until the 1970's, when a series of
drainage works dried out the lake for good.
On the western side of this former lake lies the archaeological
site of Sovjan. This tell dating back to the Iron and
Bronze Age has been excavated by the French-Albanian
archeological mission of the Kerce basin (Cnrs Ura 1473,
University Paris I, French School of Archeology in Athens,
Archeological Institute of Tirana).
The joint analysis of the results of the archaelogical excavations,
of the regional neo-tectonic and geomorphological
context, of 14C datings, of drills and particularly the pollen
study of 9,30 m of turf taken in one continuous part from
the middle of the former lake, leads us to propose
a new comprehensive paleo-environmental study on
Southern Albania. We try to make out the respective influence
of climatic and anthropic factors in the Holocene
period on the variations in the level of the waters of former
Lake Maliq as well as on the evolution of the vegetation.
170
ERIC FOUACHE 1, GJIOVALIN GRUDA 2, SKENDER MUCAJ 3
& PAL NIKOLLI 2
The recent geomorphological evolution
of the Rivers Vjose and Seman (Albania)
1 Universite Paris IV et Ura 141 Cnrs,
place A. Briand 92195 Meudon, France
2 Universiteti i Tiranes, Fakulteti Histori-Filologia, Tirane, Albania
3 Berthama Arkeologjike, Fier, Albania
Coming out of the Neogene molasse hills of the Mallakast'r,
the rivers Seman and Vjos' have built up two large
joint deltas on the Albanian adriatic shore which is characterized
by a low lido-coast. The changes in the river courses
and the migrations of the heads of the deltas were
quick and numerous from the Holocene period down to
the drainage works started in the 1950s.
The use of a Spot image dated May 25 1995 (Hrv 3 081­
268) enables us to visualize the coastal and fluvial dynamics'
the role of neotectonics as well as the predominance
of the flume of turbidity of the Seman River.
The fact that we took part in the French-Albanian archaeological
mission in Apollonia since 1994 allowed us to
confront geomorphological, archaeological and historical
data, in particular ottoman and medieval archives and a
detailed inventory of the maps available. So our research
opens on to a geomorphological map and an accurate dating
of the changes in the courses that occurred since antiquity.
It appears that the 20 th century has known by far the
largest progression of the deltas in historical times.
WOLFGANG FRISCH, JOACHIM KUHLEMANN
& ISTVAN DUNKL
Geomorphological evolution of the Eastern Alps
as a response to Neogene postcoIIisionaI tectonics
Institut fur Geologie, Universitat Tiibingen,
Sigwartstrasse 10, D-72076 Tiibingen, Germany
The topographic pattern of the Eastern Alps is mainly determined
by Neogene lateral tectonic extrusion, which is a
combination of gravitational collapse of the thermally equilibrating
thickened crust and tectonic escape of rigid
blocks of the upper plate orogenic lid. During extrusion,
tectonic blocks migrated towards the east, which was enabled
by subducting oceanic lithosphere in the Pannonian
region creating free space to escape. This process was
accompanied by considerable crustal and lithospheric
thinning.
As a consequence of lateral tectonic extrusion, there is a
general decrease from west to east in mean and maximum
elevations of each tectonic mega-unit (Subalpine Molasse,
Rhenodanubian Flysch, Northern Calcareous Alps, Austroalpine
basement zone, Penninic Tauern window). This
picture becomes more differentiated if lithological parameters
and exhumation data from apatite fission track analy-