STRESS-METAMORPHISM AND STRESS-METAMORPHITES IN PRECAMBRIAN OF THE LADOGA REGION
<span lang="EN-US">The tectonites confined to fault zones with abnormally high, up to 12 kbar, pressures, which appear to be the products of stress-metamorphism of relatively late stage of deformation-metamorphic evolution, are identified in the regionally metamorphosed Precambrian r...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Karelian Research Centre of the Russian Academy of Sciences
2015-06-01
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| Series: | Transactions of the Karelian Research Centre of the Russian Academy of Sciences |
| Subjects: | |
| Online Access: | http://journals.krc.karelia.ru/index.php/precambrian/article/view/159 |
| Summary: | <span lang="EN-US">The tectonites confined to fault zones with abnormally high, up to 12 kbar, pressures, which appear to be the products of stress-metamorphism of relatively late stage of deformation-metamorphic evolution, are identified in the regionally metamorphosed Precambrian rocks of the Ladoga region. Most of these stress-metamorphites are localized in the Meyeri tectonic zone, separating the Svecofennian and Karelian geoblocks. The features of structure and composition of the two groups of stress-metamorphites belonging to the different stages of the deformation-metamorphic phase are described. Some parameters and trends in stress-metamorphism of each stage are defined.</span> |
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| ISSN: | 1997-3217 2312-4504 |