Comparative Study of Magmatism in East Pacific Rise Versus Nearby Seamounts: Constraints on Magma Supply and Thermal Structure Beneath Mid-ocean Ridge

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Comparative Study of Magmatism in East Pacific Rise Versus Nearby Seamounts: Constraints on Magma Supply and Thermal Structure Beneath Mid-ocean Ridge
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Major elements of 2202 basalts from the East Pacific Rise (EPR) and 888 basalts from near-EPR seamounts are used to investigate their differences in magma crystallization pressures and mantle melting conditions. Crystallization pressure calculation from basalts with 5.0wt%

Key words:crystallization pressure, magma supply, thermal structure, seamount, East Pacific Rise

Reference

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[2]Guoliang ZHANG,Zhigang ZENG,Xuebo YIN,Xiaoyuan WANG,Daigeng CHEN.Deep Fractionation of Clinopyroxene in the East Pacific Rise 13°N: Evidence from High MgO MORB and Melt Inclusions[J].Acta Geologica Sinica (English Edition),2009,83(2):266-277.

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[18]YANG Zhen-qiang,ZHU Zhang-xian.The Metallogeny and Magma Source Areas for Two Types of Cenozoic Adakites: West-South Pacific Zone Versus East Pacific Zone[J].Geology and Mineral Resources of South China,2010(3):1-11.

[19]洪汉烈,方谦,王朝文,宫旎娜,赵璐璐.Constraints of Parent Magma on Altered Clay Minerals: A Case Study on the Ashes near the Permin-Triassic Boundary in Xinmin Section,Guizhou Province[J].Earth Science-Journal of China University of Geosciences,2017,42(2):161-172.

[20]SHEN Zhong-yan,YANG Chun-guo,GAO Jin-yao and JI Fei.Structure and Development Processes of the Sediment Ridges on the Continental Rise off the Prydz Bay Margin, East Antarctica[J].Acta Geoscientica Sinica,2015,36(6):709-717.

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ZHANG Guoliang.2011. Comparative Study of Magmatism in East Pacific Rise Versus Nearby Seamounts: Constraints on Magma Supply and Thermal Structure Beneath Mid-ocean Ridge[J]. Acta Geologica Sinica(),85(6):1286-1298

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Received:February 04,2010
Revised:September 10,2010
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