Email this article Friction-Induced Changes in the Surface Structure of Basalt and Granite
- Authors: Arora K.1, Ponomarev A.V.2, Mamalimov R.I.3, Shcherbakov I.P.3, Kulik V.B.3, Vettegren V.I.3
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Affiliations:
- CSIR National Geophysical Research Institute
- Schmidt Institute of Physics of the Earth
- Ioffe Institute
- Issue: Vol 60, No 5 (2018)
- Pages: 975-980
- Section: Mechanical Properties, Physics of Strength, and Plasticity
- URL: https://journal-vniispk.ru/1063-7834/article/view/202929
- DOI: https://doi.org/10.1134/S1063783418050359
- ID: 202929
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Abstract
Friction-induced changes in the structure of the surface layer of basalt and granite samples extracted from a well in the triggered seismicity zone in the Koyna–Warna region, India, have been studied by infrared, Raman, and photoluminescence spectroscopy. It has been found that friction leads to a partial degradation of quartz, albite, and clinopyroxenes crystals. Instead of these crystals, a thin layer of a mineral with a low coefficient of friction—kaolinite—is formed on the surface.
About the authors
K. Arora
CSIR National Geophysical Research Institute
Email: Victor.Vettegren@mail.ioffe.ru
India, Hyderabad
A. V. Ponomarev
Schmidt Institute of Physics of the Earth
Email: Victor.Vettegren@mail.ioffe.ru
Russian Federation, Moscow, 123242
R. I. Mamalimov
Ioffe Institute
Email: Victor.Vettegren@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
I. P. Shcherbakov
Ioffe Institute
Email: Victor.Vettegren@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
V. B. Kulik
Ioffe Institute
Email: Victor.Vettegren@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
V. I. Vettegren
Ioffe Institute
Author for correspondence.
Email: Victor.Vettegren@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
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