Data from the manuscript: Friction in clay-bearing faults increases with the ionic radius of interlayer cations

Data are time series of clay shearing tests presented in 'Friction in clay-bearing faults increases with the ionic radius of interlayer cations' by Sakuma et al. in...本数据集为黏土剪切试验的时间序列数据，源自佐久间（Sakuma）等人发表于……的《含黏土断层的摩擦力随层间阳离子离子半径增大而升高》一文。