IODP Expedition 345 P-wave velocity caliper (discrete)

P-wave velocity data were measured on undisturbed section halves (JRSO-defined x-axis) and/or discrete cube and cylinder samples (x, y, or z-axis) using pairs of piezoelectric transducers mounted on a caliper system. Report includes P-wave velocity in x, y, and/or z-direction, caliper separation, traveltime between transucers, and first arrival picks.本数据集的纵波速度（P-wave velocity）数据采集于未受扰动的分段半块岩心（采用JRSO定义的x轴）以及离散的立方体、圆柱体样品（沿x、y或z轴定向），测量采用安装于卡钳系统的成对压电换能器（piezoelectric transducers）完成。该数据集附带的报告涵盖x、y和/或z方向的纵波速度、卡钳间距、换能器间传播走时以及初至拾取结果。