A New Borehole Magnetic Susceptibility Tool for High-Resolution Paleoclimate and Core-Log Integration Studies

一种新的井下磁化率（MS）工具将提供测井数据，以加强IODP下的古气候和沉积学研究，并将补充现有的多传感器伽马射线工具（MGT）。 该项目将设计一种MS工具，其分辨率（10厘米，而不是1米）比以前用于ODP计划某些阶段的工具更好。 由此产生的数据将被证明是至关重要的相互关联的核心从多个孔和集成的核心和日志从单孔。该工具将由现成的传感器与适当的压力外壳和数据采集/传输系统配合而成，支持者打算遵守IODP咨询结构阐明的第三方井下工具指南。 MS工具不仅可以在深海环境中找到潜在的应用，而且可以在湖泊和大陆环境中找到潜在的应用。 预计MS工具最终将作为非隔水管船舶上几乎所有IODP程序的一部分进行常规运行。 定于2005年底和2006年对新工具进行实地测试。

A new downhole magnetic susceptibility (MS) tool will provide logging data to enhance paleoclimate and sedimentological studies under IODP and will complement the existing multisensor gamma ray tool (MGT). The project will design a MS tool that has better resolution (10 cm as opposed to 1 m) than the tool previously available for some legs of the ODP program. The resulting data will prove critical for the intercorrelation of cores from multiple holes and the integration of cores and logs from single holes. The tool will be built from off-the-shelf sensor fit with the appropriate pressure housing and data acquisition/transmission system, and the proponents intend to comply with third-party downhole tool guidelines articulated by the IODP advisory structure. The MS tool could find potential application not only in the deep-sea environment, but also in lacustrine and continental settings. It is expected that the MS tool will eventually be routinely run as part of nearly every IODP program on the non-riser vessel. Field tests on the new tool are scheduled for late 2005 and 2006.