IODP Expedition 397 P-wave velocity logger (whole round)

P-wave velocity data were measured on whole-round sections on the Whole-Round Multisensor Logger (WRMSL) using pairs of piezoelectric transducers mounted on a caliper system. Measurements may be affected by degassing of pore fluid and microfracturing during core recovery. Report includes P-wave velocity in x-y plane and distance and traveltime between transducers.本数据集的P波速度（P-wave velocity）数据，依托全岩心多传感器测井仪（Whole-Round Multisensor Logger, WRMSL），采用安装于测径系统的成对压电换能器，对完整岩心段完成测量获取。测量过程可能受到岩心取心阶段孔隙流体脱气与微观破裂作用的影响。本数据集配套报告涵盖x-y平面内的P波速度数据，以及换能器间距与声波传播时间。