| 地幔柱与洋脊分段成因探讨 |
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| 引用本文： | 钟福平,钟建华,由伟丰,王化爱.地幔柱与洋脊分段成因探讨[J].海洋学报,2011,33(1):98-103. |
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| 作者姓名： | 钟福平 钟建华 由伟丰 王化爱 |
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| 作者单位： | 1.河南理工大学 安全科学与工程学院, 河南 焦作 454003;河南省瓦斯地质与瓦斯治理重点实验室--省部共建国家重点实验室培养基地, 河南 焦作 454003;中国科学院 广州地球化学研究所, 广东 广州, 510640 |
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| 基金项目： | 中国西北地区构造-岩相古地理研究与编图(07370502000130)。 |
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| 摘 要： | 地幔柱产生岩浆的核幔交界部位相当于"岩浆洋",下地幔与上地幔、上地幔与软流圈之间的岩浆流通道相当于"岩浆河流",岩浆由软流圈经岩石圈喷出地表的通道相当于"岩浆小溪",在它们之间都会有许多的"岩浆支流",其中有的"支流"将这些"河流"与"河流"或"河流"与"小溪"联系起来.洋脊分段现象是由于地幔柱中存在横向的"岩浆支流"...
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| 关 键 词： | 地幔柱 洋脊分段 转换断层 |
| 收稿时间： | 2009/11/2 0:00:00 |
The mantle plume and the cause of segmentation of ocean ridges |
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| ZHONG Fu-ping,ZHONG Jian-hu,YOU Wei-feng and WANG Hua-ai.The mantle plume and the cause of segmentation of ocean ridges[J].Acta Oceanologica Sinica (in Chinese),2011,33(1):98-103. |
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| Authors: | ZHONG Fu-ping ZHONG Jian-hu YOU Wei-feng and WANG Hua-ai |
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| Affiliation: | School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China;State Key Lab oratory Cultivation Base, Henan Province Key Laboratory of Gas Geology and Gas Control, Jiaozuo 454003, China;Guangzhou Institute of Geochermistry,;Guangzhou Institute of Geochermistry, Chinese Academy of Science, Guangzhou 510640, China;Institute of Earth Resources and Information, University of Petroleum(East China), Dongying 257061, China;Research Institute of Exploration and Development, China Petroleum and Chemical Corporation, Beijing 100083, China;Research Institute of Exploration and Development, China Petroleum and Chemical Corporation, Beijing 100083, China |
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| Abstract: | Mantle plume generates magma at the junction of the core-mantle,which is equivalent to a "magma ocean", magma flow passiges between the lower mantle and the upper mantle,and between the upper mantle and the asthenosphere flow are equivalent to "magma rivers", magma from the asthenosphere through the lithosphere spray out of the ground through passiges which are equivalent to some "magma streams".Among them, there are many "magma tributary streams", some "magma tributary streames"link "magma rivers"with"magma rivers" or "magma rivers"with"magma tributary streams",each other.The phenomenon of segmentation of ocean ridges is due to the existence of horizontal "magma tributary streams" in the mantle plume, which laterally flow, shear stress of the opposite direction generates at the bottom of rock bodies, the dislocation of displacement creats between ocean crusts.The "magma tributary streams"of the first rank of segmentation of the ocean ridges are much larger than second, third and forth rank in depth, scale and shear traction at the bottom of rock stratums.The dynamics of segmentation of the ocean ridges differs from the previous studies which are considered that the segmantation of the ocean ridges is mainly controlled by the periodic pulse upwelling of magma in the mantle. |
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| Keywords: | mantle plume segmentation of ocean ridges transform fault |
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