| 岩心磁组构分析古水流方向的原理与应用 |
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| 引用本文： | 邓秀芹,刘新社,惠潇,郭正权,黄锦绣.岩心磁组构分析古水流方向的原理与应用[J].西北大学学报,2007,37(6):896-900. |
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| 作者姓名： | 邓秀芹 刘新社 惠潇 郭正权 黄锦绣 |
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| 作者单位： | 长庆油田勘探开发研究院，长庆油田勘探开发研究院，长庆油田勘探开发研究院，长庆油田勘探开发研究院，长庆油田勘探开发研究院 陕西西安710021，陕西西安710021，西北大学地质学系，陕西西安710069，陕西西安710021，陕西西安710021，陕西西安710021 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 目的针对鄂尔多斯盆地天环拗陷南段延长组开展磁组构古水流研究。方法通过测量岩心样品的磁化率各向异性,分析磁组构特征,结合矿物岩石学特征综合开展岩心古水流方向判识。结果延长组碎屑岩的古水流方向为NE—SW,NW—SE和NS向,分别代表西南、西北和北部3个方向的物质供给。结论磁组构分析古水流方向与轻重矿物组合法判断的物源方向一致,表明应用磁组构分析钻井岩心古水流方向的方法是可行、可靠的,利用磁组构分析方法恢复古水流方向,判识物源具有较好的应用前景。
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| 关 键 词： | 磁组构 磁化率各向异性 古水流 鄂尔多斯盆地天环拗陷 钻井岩心 |
| 文章编号： | 1000-274X（2007）06-0896-05 |
| 收稿时间： | 2007-05-20 |
| 修稿时间： | 2007年5月20日 |
The principle and application of magnetic fabric to paleocurrent estimation of drilling cores |
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| DENG Xiu-qin,LIU Xin-she,HUI Xiao,Guo Zheng-quan,Huang Jin-xiu.The principle and application of magnetic fabric to paleocurrent estimation of drilling cores[J].Journal of Northwest University(Natural Science Edition),2007,37(6):896-900. |
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| Authors: | DENG Xiu-qin LIU Xin-she HUI Xiao Guo Zheng-quan Huang Jin-xiu |
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| Abstract: | Aim To make the study by the method of paleomagnetic fabric analysis on samples from drilling cores of Yanchang formation in South of Tianhuan sag.Methods With the mineral combination investigation,paleocurrent orientation was affirmed based on the research of paleomagnetic fabric which was analyzed by the measurement of magnetic anisotropy.Results The debris of Yanchang formation in the south of Tianhuan sag,carried by rivers come from sourhwest,northwest and north(northeast) provenance.Conclusion The uniformity of paleocurrent orientations judged by paleomagneitic fabric study and mineral combination reseach shows the feasibility of the magnetic fabric method to peleocurrent estimation,and magneitic fabric analysis will be widly applied in paleocurrent and provenance research. |
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| Keywords: | magnetic fabric magnetic anisotropy paleocurrent Tianhuan sag of Ordos Basin drilling cores |
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