Mantle geochemistry: Insights from ocean island basalts
作者: ShiChun HuangYongFei Zheng
作者单位: 1University of Nevada
2University of Science and Technology of China
刊名: Science China Earth Sciences, 2017, Vol.60 (11), pp.1976-2000
来源数据库: Springer Journal
DOI: 10.1007/s11430-017-9090-4
关键词: Mantle structureMantle compositionCrustal componentsCrust-mantle interactionCrustal recycling
英文摘要: The geochemical study of the Earth’s mantle provides important constraints on our understanding of the formation and evolution of Earth, its internal structure, and the mantle dynamics. The bulk Earth composition is inferred by comparing terrestrial mantle rocks with chondrites, which leads to the chondritic Earth model. That is, Earth has the same relative proportions of refractory elements as that in chondrites, but it is depleted in volatiles. Ocean island basalts (OIB) may be produced by mantle plumes with possible deep origins; consequently, they provide unique opportunity to study the deep Earth. Isotopic variations within OIB can be described using a limited number of mantle endmembers, such as EM1, EM2 and HIMU, and they have been used to decipher important mantle processes....
原始语种摘要: The geochemical study of the Earth’s mantle provides important constraints on our understanding of the formation and evolution of Earth, its internal structure, and the mantle dynamics. The bulk Earth composition is inferred by comparing terrestrial mantle rocks with chondrites, which leads to the chondritic Earth model. That is, Earth has the same relative proportions of refractory elements as that in chondrites, but it is depleted in volatiles. Ocean island basalts (OIB) may be produced by mantle plumes with possible deep origins; consequently, they provide unique opportunity to study the deep Earth. Isotopic variations within OIB can be described using a limited number of mantle endmembers, such as EM1, EM2 and HIMU, and they have been used to decipher important mantle processes....
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影响因子:1.255 (2012)

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关键词翻译
关键词翻译
  • mantle 地幔
  • geochemistry 地球化学
  • geochemical 地球化学的
  • island 
  • subduction 俯冲
  • radiogenic 放射性衰变产生的
  • mafic 镁铁质的
  • petrogenesis 岩石成因论
  • terrestrial 地上的
  • composition 构图