DYNAMICS and ACTIVE PROCESSES - International Lithosphere ...

interglacial epochs, on which the rivers must to have had big amount of the water and so, must to
be grown the their abrasive power.
It is clear, that in this forming have influenced and the presence of the elevator movements.
According to mainly, geomorphologic character we have: today Quaternary depositions (where
are included the bed depositions, the gritty earth of the rivers and today alluvial fields), the upper
Pleistocene depositions (the deposition of the firs terrace level), the middle Pliocene depositions
(the depositions which construct the second level of the terraces), the deposition of the lower
Pliocene (deposition which construct the second and third level of the terraces), the Plio-
Pleistocene depositions (river and lake facies).
The age division, are supported in the fact of the paleogeographic development, after three main
sedimentary fazes: the lake faze (lower-middle and partly upper Pleistocene), the river faze
(lower-middle-upper Pleistocene included and Holocene). The fact of the river depositions
placement (terraces) up to deposition of the lake-river facies less deformed from the Vallahe
folding.
The strong turns as like as elbow in southern-western direction what the Devolli river gets in
Gostima of Elbasan and Vjosa river in Kelcyra, happen from the presence of a lake in Elbasani–
Cerrik region, in Quaternary period, with the elongate as a tongue in Mollas- Selite direction.
So the Devolli River, during Quaternary is poured in this lake and only in the end of Pleistocene
or in the beginning of the Holocene has got the turn to southwest, while the Kelcyra neckband is
formed in a antecedence, so, the Vjosa River, during Quaternary has crossed in the way, in today
direction.
After geo-geomopholocical features, the walleyes of the Albanian rivers have favorable
conditions for the constructing of the hydropower works, also after these conditions and results
from complex works, has the premise for the placers.
The alluvial depositions, almost the all kinds, have water- bearing capacity, with very importance
for the water-drinking industry.
72