RUSSIAN JOURNAL OF EARTH SCIENCES VOL. 8, ES6001, doi:10.2205/2006ES000206, 2006


The State of the Problem

[2]  As the concept of mantle plumes is formed the problem of searching for reliable criteria to identify these large sources of intraplate activity is becoming more and more actual. Among the generally accepted indicators (relief features, tectonic conditions, chemistry of magmatic rocks, geophysical anomalies, isotope characteristics), sedimentary formations are also mentioned but the problems of the plume direct influence on sedimentation actually were not discussed until recently [Grachev, 2000]. The activation of plume processes may indirectly affect sedimentation conditions through tectonic and geomorphologic phenomena which makes a prerequisite to discuss this problem in a slightly different context with the emphasis on comparative analysis data on the composition and mode of occurrence of preplume and plume formations of the sedimentary basin. In the zones of great effects of plumes, the differences in formations may be considered as a direct indicator of this process and in the remote areas they may bear evidence of the general tectonic and sedimentation settings in the periods of plume activity.

[3]  Data on the mode of occurrence, lithology, magnetic characteristics of Maastrichtian and Danian sediments of the Russian platform, the Cis-Caspian region, the Crimea, and the Caucasus are given in this paper. These vast territories were outside the zones of direct influence of Deccan and North Atlantic plumes and thus may be considered as typical patterns to analyze indirect interrelations in the system "plumes - sedimentation".


RJES

Citation: Molostovsky, E. A., V. A. Fomin, and D. M. Pechersky (2006), Sedimentogenesis in Maastrichtian-Danian basins of the Russian plate and adjacent areas in the context of plume geodynamics, Russ. J. Earth Sci., 8, ES6001, doi:10.2205/2006ES000206.

Copyright 2006 by the Russian Journal of Earth Sciences

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