Temperature and Tilt Variation Measured for 64 Days in Hole 581C
Temperature and Tilt Variation Measured for 64 Days in Hole 581C
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581C 孔中 64 天测量的温度和倾斜变化
DOI：
10.2973/dsdp.proc.88.112.1987
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
D. Harris
中科院分区：
文献类型：
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作者：
F. Duennebier;R. Cessaro;D. Harris
海底地震仪在钻井后的天内获得了581C孔的连续温度和倾角数据，并在8个半月后进行了另一次温度测量。这些数据被用来获得通过110英里古老地壳的热流估计，并确定仪器的机械稳定性。温度结果显示，钻探后第一周温度迅速上升，随后温度上升的第二趋势持续了几个月。用简单的理论来模拟这些数据似乎是不可能的，对前6天的温度升高进行外推，得到的平衡温度比从总数据集获得的温度高0.6°。我们将这些数据解释为钻井水侵入并冷却了洞穴周围的区域。仪器中的倾斜传感器不够灵敏，无法记录构造倾斜的变化。然而，即使它们的灵敏度较低，它们也表明平台在日记录期结束时尚未达到平衡。
The ocean sub-bottom seismometer obtained continuous temperature and tilt data in Hole 581C during a 64-day period after drilling and another temperature measurement 8 1/2 months later. These data are used to obtain a heat-flow estimate through the 110-m.y.-old crust and to determine the mechanical stability of the instrument. Temperature results show rapid temperature increase during the first week after drilling, and then a secondary trend of increasing temperature extending over several months. It does not appear possible to model these data with simple theory, and extrapolation of the temperature increase obtained during the first 6 days yields an equilibrium temperature 0.6° higher than that obtained from the total data set. We interpret these data to mean that the drilling water invaded and cooled the region around the hole. The tilt sensors in the instrument are not sensitive enough to record tectonic tilt variations. However, even with their low sensitivity, they show that the platform had not reached equilibrium by the end of the 64-day recording period.