ST. AIRINEI
Facultatea de Geologie-Geografie, Universitatea din Bucuresti, Bucuresti
GEODYNAMIC RELATIONS BETWEEN THE MOESIAN MICROPLATE AND
THE CARPATHIAN-BALKAN ARCH ON THE TERRITORY OF ROMANIA
(Abstract)
The geophysical data of the discussed area, and especially of the mountainous
zone of the Carpathian-Balkan arch, contain potential arguments to account
for the formation through paleo-subduction and collision, in the concept of
plate-tectonics, on the southern range of the Carpathians in Romania, including
the Carpathian-Balkan arch. The sequence of geodynamic relations between the
Moesian and the Interalpine microplates was first dominated by subduction in
the directions West and North-West, and then, in the same directions, by collision.
The correlation between geophysical and geological data is characteristically
determined by the shape of the Moesian microplate and unified by the Alpine
tectonics in the form of inbendings and parallelisms among all big and small
structures, in young or old formations. The paleosubduction and collision relations
account for the intense basic and ultrabasic magmatic activity, which locally
penetrates the granitic and sedimentary covers of the continental crust, thinning
and lifting it up like a huge dome of dense subcrustal masses. The geodynamic
relations associate fundamental and practical problems, in whose light there
are to be reconsidered both the metallogeny associated to the basic and ultrabasic
magmatism, and the investigation of the sedimentary engaged by subduction beneath
crystallophilous massifs and of other structures gravitationally drawn towards
the foreland.