(Table 1) Sediment temperature and thermal conductivity at DSDP Leg 86 Holes

Using a new temperature recording instrument recently developed at the Woods Hole Oceanographic Institution, downhole temperature measurements were made at five sites during Deep Sea Drilling Project Leg 86. The instrument, which can be installed in the shoe of the hydraulic piston corer, allows measurements of sediment temperature to be made simultaneously with the collection of sediment cores. A numerical procedure was applied to correct the temperature disturbance caused by the corer's friction with the sediment. Detailed temperature profiles constructed from the data were combined with the measurement of thermal conductivity to calculate heat flow. Heat flow values were generally low at all sites of Leg 86, consistent with the age of the lithosphere (>100 m.y.) in the Northwestern Pacific Basin.借助伍兹霍尔海洋研究所（Woods Hole Oceanographic Institution）新近研发的温度记录仪，研究团队在深海钻探计划第86航次（Deep Sea Drilling Project Leg 86）的5个站位开展了井下温度测量。该仪器可安装于液压活塞取芯器（hydraulic piston corer）的靴部，能够在采集沉积物岩芯的同时同步完成沉积物温度的测定。研究人员采用数值校正方法，对取芯器与沉积物摩擦引发的温度扰动进行了修正。基于实测数据构建的精细温度剖面，结合热导率（thermal conductivity）测量结果，可用于计算区域热流值。第86航次所有站位的热流值普遍偏低，这与西北太平洋海盆区域岩石圈（lithosphere）年龄超过1亿年（>100 m.y.）的特征相一致。