The mantle plume and the cause of segmentation of ocean ridges

ZHONG Fu-ping; ZHONG Jian-hua; YOU Wei-feng; WANG Hua-ai

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ZHONG Fu-ping, ZHONG Jian-hua, YOU Wei-feng, WANG Hua-ai. The mantle plume and the cause of segmentation of ocean ridges[J]. Haiyang Xuebao, 2011, 33(1): 98-103.

Citation:

ZHONG Fu-ping, ZHONG Jian-hua, YOU Wei-feng, WANG Hua-ai. The mantle plume and the cause of segmentation of ocean ridges[J]. Haiyang Xuebao, 2011, 33(1): 98-103.

ZHONG Fu-ping, ZHONG Jian-hua, YOU Wei-feng, WANG Hua-ai. The mantle plume and the cause of segmentation of ocean ridges[J]. Haiyang Xuebao, 2011, 33(1): 98-103.

Citation:

ZHONG Fu-ping, ZHONG Jian-hua, YOU Wei-feng, WANG Hua-ai. The mantle plume and the cause of segmentation of ocean ridges[J]. Haiyang Xuebao, 2011, 33(1): 98-103.

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The mantle plume and the cause of segmentation of ocean ridges

1.
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,
2.
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
3.
Research Institute of Exploration and Development, China Petroleum and Chemical Corporation, Beijing 100083, China

Received Date: 2009-11-02

Abstract

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.
- mantle plume,
- segmentation of ocean ridges,
- transform fault

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References(22)

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