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Nikitina L.P., Ovchinnikov N.O., Babushkina M.S., Yakovleva A.K., Yakovlev Yu.N., Chernova O.G., Goilo E.A.
Do Fe-Mg micas from the Archaean rocks of the Kola Superdeep Borehole preserve information about the crystalline substance state during their extraction to the surface in the course of drilling?
Abstract. A comparative analysis of structural and spectroscopic peculiarities of the rock forming minerals in the SG-3 rocks and their homologues in the Pechenga structure framing allowed obtaining some new results concerning the specific character of buried Archaean units and constructing correlations between deep and surface formations. The investigations were performed with the use of the EPR data on vacancy defects (Р•1-centres) and defects related to the isomorphous incorporation of Al-, Ge-, Ti-ions into the lattice of the rock forming quartz and the X-ray luminescence (XRL) data on the proper and admixture defects in plagioclase. Rank correlations between the qualitative composition of the plagioclase XRL patterns and petrogenetic characteristics of host rocks have been found. Dependence of the system of admixture and proper structural defects in the rock forming minerals along the SG-3 section vs the depth of occurrence and petrogenesis of the Precambrian host rocks has been estimated. Our study showed that the admixture structural defects in the rock forming quartz can serve as a genetic mark of metamorphic rocks in the Precambrian structural-formational complexes. They are one of the criteria for typization and correlation of deeply metamorphosed Early Precambrian units penetrated by SG-3.
Printed reference: Do Fe-Mg micas from the Archaean rocks of the Kola Superdeep Borehole preserve information about the crystalline substance state during their extraction to the surface in the course of drilling? / L.P. Nikitina, N.O. Ovchinnikov, M.S. Babushkina, A.K. Yakovleva, Yu.N. Yakovlev, O.G. Chernova, E.A. Goilo // Vestnik of MSTU. 2007. V. 10, No 1. P. -.
Electronic reference: Do Fe-Mg micas from the Archaean rocks of the Kola Superdeep Borehole preserve information about the crystalline substance state during their extraction to the surface in the course of drilling? / L.P. Nikitina, N.O. Ovchinnikov, M.S. Babushkina, A.K. Yakovleva, Yu.N. Yakovlev, O.G. Chernova, E.A. Goilo // Vestnik of MSTU. 2007. V. 10, No 1. P. -. URL: http://vestnik.mstu.edu.ru/v10_1_n26/articles/03_nikit.pdf.
