“…They possess small‐size effect, surface and interface effect, macroscopic quantum tunneling and quantum‐size effect, and other special physical and chemical properties, which provide a new idea for the macrostudy of geological tectonic deformation. It is found that a large number of nanoparticles are developed in fault zones (Cai et al, ; Carpenter et al, ; Chester et al, ; Fondriest et al, ; Huang et al, ; Siman‐Tov et al, ; Wang & Sun, ), and these nanoparticles are considered to be associated with fault weakening (De Paola, ; Han et al, ; Siman‐Tov et al, ). To verify the aforementioned notion, many friction experiments have been conducted in recent years, for example, by adding spherical nanoparticles (metallic oxides and carbonatites; Han et al, ) or fault gouges to experimental faults (De Paola et al, ; Fondriest et al, ; Han et al, ; Pozzi et al, ; Siman‐Tov et al, , ; Zhang & He, ).…”