Abstract
Longitudinal directions are clearly manifested in the present day structure of the Caucasus region, which formed during the Alpine geotectonic cycle (Mz-Kz). This might indicate the existence of a collision zone. However the presence of the transversal directions, which can be recognized both in the superficial and in the deep crust-upper mantle structure, are not less important.
Because the transversal direction occurs in the whole geological history and more strongly from the last orogenic (N-Q) stange, the activity of the deep crust cannot be explained as a simple collision between plates along a longitudinal line. Magmatic phenomena show that all geological history can be divided into two stages: the first one — geosinclynal stage with longitudinal activity of the deep zone of the crust; the second — orogenic stage with transversal activity. For both the stages of development the most probable mechanism for the evolution of the earth’s crust are diapir-like movements on different levels in the crust and upper mantle.
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© 1984 Plenum Press, New York
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Sholpo, V.N. (1984). The Relation Between Superficial and Deep Structure of the Caucasus Region and Possible Geodynamic Model. In: Cassinis, R. (eds) Problems and Methods for Lithospheric Exploration. Ettore Majorana International Science Series. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-2373-0_3
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DOI: https://doi.org/10.1007/978-1-4613-2373-0_3
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