Cryogenesis of granites and gneisses in South Yakutia

Based on field and laboratory studies of the rock massifs in South Yakutia using remote earth sensing technologies, methods of scanning electron microscopy, X‐ray 3D tomography, lithological‐mineralogical and optical‐petrographic studies, quantitative data on the intensity of cryogenesis of granites...

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Bibliographic Details
Published in:Geological Journal
Main Authors: Melnikov, Andrei, Zhang, Ze
Other Authors: Ministry of Science and Higher Education of the Russian Federation, National Natural Science Foundation of China, Russian Science Foundation
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2023
Subjects:
Yakutia
Online Access:http://dx.doi.org/10.1002/gj.4890
https://onlinelibrary.wiley.com/doi/pdf/10.1002/gj.4890
Description
Summary:Based on field and laboratory studies of the rock massifs in South Yakutia using remote earth sensing technologies, methods of scanning electron microscopy, X‐ray 3D tomography, lithological‐mineralogical and optical‐petrographic studies, quantitative data on the intensity of cryogenesis of granites and gneisses in this area were obtained. A 16%–20% increase in the fracturing of rocks at the near‐surface part of the rock massif was shown to have occurred over a 10‐year period; during this time, vertical landforms, represented by granites and gneisses, retreated at a rate of 3 mm per year. However, no variations in the chemical and mineral composition of these rock types were identified over the study period.

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