IODP Expedition 372B/375 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.采用加热针状探针法开展导热系数测试，测试使用TeKa Berlin TK-04型导热系数仪，可根据样品特性选择全空间探针配置模式（适用于软质/饱和沉积物）或半空间探针配置模式（适用于硬质材料）。向样品施加热源后，等待体系达到热平衡状态。通过对加热及热平衡曲线进行数据简化处理，即可推导得到样品的导热系数数值。若用户需要进行离线处理或野外作业结束后的离线数据还原分析，可留存原始实验数据。