Resolving sediment subduction and crustal contamination in the Lesser Antilles Island arc: A combined He-O-Sr isotope approach
Resolving sediment subduction and crustal contamination in the Lesser Antilles Island arc: A combined He-O-Sr isotope approach
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解决小安的列斯群岛弧的沉积物俯冲和地壳污染：He-O-Sr 同位素组合方法
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
D. Mattey
中科院分区：
文献类型：
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作者：
M. V. Soest;D. Hilton;C. Macpherson;D. Mattey
以表示弧的两个部分之间的过渡。我们报告了一个广泛的氦同位素调查玄武岩安山岩示踪剂的最大灵敏度似乎是氦同位素，熔岩从小安的列斯群岛岛弧-弧系统与井污染是第一个和最突出的这个系统。地壳污染的证据鉴于灵敏度的氦同位素作为示踪剂的影响，地壳的补充，我们的目的是评估的关系，他/他比的污染过程，如氧和锶同位素的其他指标。
to represent the transition between the two sections of the arc. The We report an extensive helium isotope survey of basaltic to andesitic tracer with the greatest sensitivity appears to be helium isotopes, as lavas from the Lesser Antilles island arc—an arc system with wellcontamination is seen first and most prominently in this system. documented evidence of crustal contamination. Given the sensitivity of helium isotopes as a tracer of the effects of crustal additions, our aim is to evaluate the relationship of He/He ratios to other indices of contamination processes such as oxygen and strontium isotopes.