IODP Expedition 349 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）数据采集于两类试样：一类为未扰动岩心半段（沿JRSO定义的X轴方向），另一类为离散立方体与圆柱体试样（沿X、Y或Z轴方向），测量采用安装于卡尺式测量系统（caliper system）的成对压电换能器（piezoelectric transducers）完成。随数据集提供的报告涵盖沿X、Y和/或Z方向的纵波速度、卡尺间距、换能器间旅行时以及初至拾取结果。