Heat flow determinations of ODP Hole 111-504B

Hole 504B in the eastern equatorial Pacific has been the focus of five scientific drilling expeditions since it was first drilled in 1979. During these five legs, a series of temperature logs has been obtained over a time span of almost 8 yr, documenting the geothermal and hydrologic state of the oceanic crust in this region. Immediately following reentry at the onset of ODP Leg 111 operations, a high-resolution temperature probe was lowered into the borehole and a precise record of temperature vs. depth in Hole 504B was recorded down to 1300 mbsf. […]

东赤道太平洋的504B钻孔自1979年首次钻探以来，已成为五次科学钻探航次的研究焦点。在这五次航次期间，研究人员在近8年的时间跨度内获取了一系列温度测井曲线，记录了该区域洋壳的地热与水文状态。在大洋钻探计划（ODP）第111航次作业开始时重返钻孔后，研究人员立即将高分辨率温度探头下入钻孔，并记录了504B钻孔中温度随深度变化的精确数据，测量深度达海底以下1300米（1300 mbsf）。[…]