IODP Expedition 352 Thermal conductivity

Thermal conductivity was measured using the heated needle method in either full-space needle configuration (soft/saturated sediments) or half-space needle configuration (harder materials) of a TeKa Berlin TK-04 thermal conductivity meter. Heat is applied to the sample and then thermal equilibrium is sought. The heating and equilibration curve is reduced to derive the thermal conductivity value. Raw data are stored if a user wishes to do off-line or postexpedition reduction.本数据集采用热针法（heated needle method）测量导热系数（thermal conductivity），使用TeKa Berlin TK-04型导热系数仪（TeKa Berlin TK-04 thermal conductivity meter），可根据样品属性选用两种探头配置方案：针对软质/饱和沉积物采用全空间针状探头配置（full-space needle configuration），针对硬质材料则采用半空间针状探头配置（half-space needle configuration）。实验流程为向样品施加热量，随后等待热平衡达成；通过对加热与平衡阶段的曲线进行数据约简，即可推导得到目标导热系数数值。若用户需开展离线或科考后的数据约简工作，则可保留原始实验数据。