IODP Expedition 366 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TeKa Berlin TK-04型热导率仪，通过加热针法开展热导率（thermal conductivity）测试：针对软质/饱和沉积物采用全空间针状探头配置，针对硬质材料则采用半空间针状探头配置。测试过程为先向样品施加热源，随后等待热平衡达成；通过对加热与平衡曲线进行简化处理，即可推导得到热导率数值。若用户需进行离线或野外考察后的数据处理，可留存原始测试数据。