| 塔里木盆地北部中、新生代钻孔岩芯古地磁研究──喜山期岩石重磁化与油气移聚 |
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| 引用本文： | 谈晓冬,方大钧.塔里木盆地北部中、新生代钻孔岩芯古地磁研究──喜山期岩石重磁化与油气移聚[J].地球物理学报,1995,38(5):688-691. |
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| 作者姓名： | 谈晓冬 方大钧 |
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| 作者单位： | 浙江大学地球科学系, 杭州 310027 |
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| 基金项目： | 国家自然科学基金;国家＂八五＂科技攻关项目 |
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| 摘 要： | 对来自塔里木盆地北部５口钻井的部分中、新生代沉积岩岩芯样品进行了古地磁研究，通过对重磁化组分和特征剩磁组分与露头样品的比较，确定了井下样品的喜山期严重重磁化；并通过烃类分析和对磁性分选颗粒的扫描电镜观察，发现了与碳氢化合物有关的球形磁铁矿颗粒和具有黄铁矿格架颗粒的球形磁铁矿聚集体，从而认为重磁化与油气移聚相关，据此确认了喜山期的油气移聚．
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| 关 键 词： | 重磁化 油气移聚 |
| 收稿时间： | 1994-12-01 |
PALEOMAGNETIC STUDY OF THE MESOZOIC AND CENOZOIC BORE HOLE IN NORTH TARIM BASIN──HIMALAYIAN REMAGNETIZATION AND HYDROCARBON MIGRATION AND COLLECTION |
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| TAN XIAO-DONG,FANG DA-JUN,WANG PENG-YAN,JIANG LI-PING.PALEOMAGNETIC STUDY OF THE MESOZOIC AND CENOZOIC BORE HOLE IN NORTH TARIM BASIN──HIMALAYIAN REMAGNETIZATION AND HYDROCARBON MIGRATION AND COLLECTION[J].Chinese Journal of Geophysics,1995,38(5):688-691. |
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| Authors: | TAN XIAO-DONG FANG DA-JUN WANG PENG-YAN JIANG LI-PING |
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| Institution: | Department of Earth Sciences, Zhejiag University, Hangzhou 310027 |
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| Abstract: | Paleomagentic study has been made on part of the Mesozoic and Cenozoic sedimentary samples from five bore holes of Northern Tarim Basin.A serious Himalayian remagnetization is revealed in the hole samples by comparing its remagnetic and characteristic components with those of the field samples.With hydrocarbon analysis and Scanning and Transmission Microscope,it is observed that there are spherical magnetite particles which were relevent to hydrocarbon and the replacement of pyrite framboids by magnetite.So it is concluded that the remagnetization is associated with the hydrocarbon migration and accumulation,therefore,the Himalayian hydrocarbon migration and accumulation is also confirmed. |
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| Keywords: | Remagnetization Hydrocarbon migration and accumulation |
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