Anion and cation partitioning between olivine, plagioclase phenocrysts and the host magma: A new application of ion microprobe study
Anion and cation partitioning between olivine, plagioclase phenocrysts and the host magma: A new application of ion microprobe study
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橄榄石、斜长石斑晶与宿主岩浆之间的阴离子和阳离子分配：离子微探针研究的新应用
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
S. Sueno
中科院分区：
文献类型：
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作者：
H. Yurimoto;S. Sueno
采用二次离子质谱法测定了大西洋中脊拉斑玄武岩基底与共存橄榄石斜长石斑晶之间-1、-2、-3、+1、+2、+3、+4和+5价离子的分配系数。阳离子配分有力地支持了“晶体结构控制”机制。阴离子的配分系数也受晶体结构的控制，因此晶体结构中正离子和阴离子的每一个位置在配分系数与离子半径图上产生一个抛物线形的峰。
Partition coefficients for -1, -2, -3, +1, +2, +3, +4 and +5 valent ions between the groundmass of tholeiite basalt and coexisting olivine and plagioclase phenocrysts from the Mid-Atlantic Ridge have been determined by secondary ion mass spectrometry. The present cation partitioning strongly supports the “crystal structure control” mechanism. The partition coefficient for an anion is also under control of the crystal structure, so that each of the cation and anion positions in the crystal structure gives rise to a parabola-shaped peak on the partition coefficient vs. ionic radius diagram.