Publications

Scientific publications

А.М. Ручьев.
Структурные особенности сдвиговых дислокаций, контролирующих благороднометалльную минерализацию и пегматитогенез в гнейсах чупинской свиты (Беломорский комплекс пород Балтийского щита)
// Геология и полезные ископаемые Карелии. Вып. 12. Петрозаводск: КарНЦ РАН, 2009. C. 65–87
А.М. Ruchyev. Structural characteristics of shearing that controls noble-metal mineralization and pegmatite formation in gneisses of the Chupa suite, Belomorian rock complex of the Baltic Shield // Geology and useful minerals of Karelia. Issue 12. Petrozavodsk: Karelian Research Centre of RAS, 2009. P. 65–87
A Paleoproterozoic, Svecofennian structural-metamorphic rock complex, with which noble-metal mineralization is associated in the Belomorides, is represented in Chupa paragneisses by zones deformed by shearing and diaphthoresis under kyanite-biotite-muscovite gneiss (schist) facies conditions. Their internal structure is discussed with examples from the geological localities of the Loushsky Pegmatite Field. Structural analysis was made by identifying the structural elements of shearing and by solving an inverse tectonophysical problem by selecting an adequate model paragenesis. The complex structure of large-sized lineament dislocation zones was found to depend on a combination of a large number of spatially overlapping shear parageneses of structural elements and to have been formed upon multi-phase deformation accompanied by changes in the geological properties of the rocks. The orientation of most pegmatite bodies is consistent with tension joints in the parageneses of structural elements characteristic of diaphthorites. Possible structural “inheritance” and “associated” evolution mechanisms are discussed.

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Last modified: December 5, 2010