COSMIC MICROSPHERES IN THE CARBONIFEROUS DEPOSITS OF THE USOLKA SECTION (Urals foredeep)
a:2:{s:4:"TEXT";s:219:"R.Kh. Sungatullin1, G.M. Sungatullina1, M.I. Zakirov1, V.A. Tsel’movich2, M.S. Glukhov1, A.I. Bakhtin1, Yu.N. Osin1, V.V. Vorob’ev1";s:4:"TYPE";s:4:"html";}
1Kazan Federal University, ul. Kremlevskaya 18, Kazan, 420008, Russia
2Borok Geophysical Observatory of the Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, 142, Borok Village, Yaroslavl Region, 152742, Russia
Keywords: Carboniferous, cosmic bombardment, magnetite microspheres, chemical composition, paleoclimate, Urals foredeep
Subsection: PETROLOGY, GEOCHEMISTRY, AND MINERALOGY
Abstract
Magnetite microspheres from the Carboniferous deposits of the Usolka reference section were studied by probe microanalysis, with comparison of the distributions of chemical elements and microspheres. The presence of microspheres in sedimentary strata is considered an additional factor for stratigraphic correlation between sedimentary sections. The microspheres are shown to be of cosmic nature. The Late Paleozoic paleoclimatic changes (extreme cooling) and biotic crises were caused by the periodical Solar System motion in the Galaxy, cosmic-dust fallout, and meteorite bombardments of the Earth.
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