V. I. Vettegren, K. Arora, A. V. Ponomarev, R. I. Mamalimov, I. P. Shcherbakov, V. B. Kulik, “Friction-induced changes in the surface structure of basalt and granite”, Fizika Tverdogo Tela, 2018, Volume 60, Issue 5,Pages <nobr>965

This article is cited in 5 papers

Mechanical properties, strength physics and plasticity

Friction-induced changes in the surface structure of basalt and granite

V. I. Vettegren^a, K. Arora^b, A. V. Ponomarev^c, R. I. Mamalimov^a, I. P. Shcherbakov^a, V. B. Kulik^a

^a Ioffe Institute, St. Petersburg
^b National Geophysical Research Institute, Hyderabad, India
^c Institute of Physics of the Earth, Russian Academy of Scienses, Moscow, Russia

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.

Received: 11.12.2017

DOI: 10.21883/FTT.2018.05.45796.343