| 中国大陆科学钻探主孔100~2000 m测井磁化率和磁三分量分析 |
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| 引用本文： | 张红杰,潘和平,骆淼,李清松,赵卫平.中国大陆科学钻探主孔100~2000 m测井磁化率和磁三分量分析[J].现代地质,2005,19(4):608-614. |
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| 作者姓名： | 张红杰 潘和平 骆淼 李清松 赵卫平 |
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| 作者单位： | 中国地质大学,地球物理与空间信息学院,湖北,武汉,430074 |
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| 基金项目： | 中国地质调查局中国大陆科学钻探工程测井专题研究.文中所用数据由中国大陆科学钻探工程中心测井技术室和岩石物性实验室提供.在此向中国大陆科学钻探工程中心测井技术室和岩石物性实验室全体工作人员表示衷心的感谢! |
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| 摘 要： | 对比分析了中国大陆科学钻探(CCSD)主孔100~2 000 m测井磁化率与岩心样本磁化率的测量结果,二者具有较好的一致性。测井磁化率统计结果表明CCSD主孔100~2 000 m超高压变质岩的磁化率从高至低依次为:蛇纹岩、石英榴辉岩、金红石榴辉岩、正片麻岩、退变质榴辉岩、多硅白云母榴辉岩、副片麻岩、绿泥石角闪岩、角闪岩。由CCSD主孔100~2 000 m磁三分量测量数据得到磁异常的△BZ、△BH和△BT值,结合前人所做的岩石学研究分析发现:主孔530~575 m的磁异常主要由岩石的金红石矿化、钛磁铁矿化和磁铁矿化引起,604~643 m和652~678 m的磁异常主要由岩石的蛇纹石化引起;钻孔中岩层的磁化率对磁三分量异常起着主要的决定作用,高磁化率岩层都表现出较大的磁三分量异常。
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| 关 键 词： | 中国大陆科学钻探(CCSD) 超高压变质岩 测井 磁化率 磁三分量 |
| 文章编号： | 1000-8527（2005）04-0608-07 |
| 收稿时间： | 2005-05-10 |
| 修稿时间： | 2005-09-10 |
Analysis on Magnetic Susceptibility and Magnetic Tricomponent Data from Well Logging in the Main Hole (100-2,000 m) of CCSD |
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| ZHANG Hong-jie,PAN He-ping,LUO Miao,LI Qing-song,ZHAO Wei-ping.Analysis on Magnetic Susceptibility and Magnetic Tricomponent Data from Well Logging in the Main Hole (100-2,000 m) of CCSD[J].Geoscience——Journal of Graduate School,China University of Geosciences,2005,19(4):608-614. |
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| Authors: | ZHANG Hong-jie PAN He-ping LUO Miao LI Qing-song ZHAO Wei-ping |
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| Institution: | Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, Hubei 430074, China |
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| Abstract: | The study contrasted and analyzed magnetic susceptibility data obtained by well logging and core measurements from 100 to 2,000 m in the main hole of Chinese Continental Scientific Drilling(CCSD),the results were coherent.The statistical results of ultra-high pressure(UHP) metamorphic rocks' logging susceptibility indicated that the susceptibility became low gradually from serpentinite to quartz eclogite,rutile-bearing eclogite,orthogneiss,retrograded eclogite,phengite eclogite,paragneiss,chlorite amphibolite and amphibolite.Magnetic anomaly △B_(Z)、△B_(H) and △B_(T) were computed from the data of tricomponent magnetic survey from 100 to 2,000 m in CCSD main hole.(According) to the previous petrologic research,it was shown that the magnetic anomaly in 530575 m was induced by magnetite,rutile,titano-magnetite,and the magnetic anomalies in 610640 m and 655680 m were induced by serpentinized peridotite,and that magnetic anomalies were dominated mainly by rock's susceptibility,and rocks which had high susceptibility displayed clear anomalies in the borehole. |
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| Keywords: | Chinese Continental Scientific Drilling(CCSD) ultra-high pressure(UHP) metamorphic rock well logging magnetic susceptibility magnetic tricomponent |
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