Experimental and Observational Constraints on Halogen Behavior at Depth
Experimental and Observational Constraints on Halogen Behavior at Depth
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DOI：
10.2138/gselements.18.1.35
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发表时间：
2022-02
期刊：
影响因子：
4.5
通讯作者：
Bastian Joachim-Mrosko;T. Kawamoto;H. Bureau
中科院分区：
文献类型：
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作者：
Bastian Joachim-Mrosko;T. Kawamoto;H. Bureau
卤素是存在于地壳、地幔和地核中的微量挥发性元素。它们表现出挥发性行为，并且除了氟之外往往是不相容的，这使得它们成为流体介导和/或熔体介导的化学传输过程的关键示踪剂。即使是少量的卤素也可以深刻地影响许多物理化学过程，如熔体粘度，矿物相的温度稳定性，含水流体中微量元素的行为，或通过岩浆脱气的大气成分。实验使我们能够模拟地球深处的条件。将实验结果与天然岩石进行比较有助于我们揭示卤素在地球内部的作用和行为。
Halogens are volatile elements present in trace amounts in the Earth’s crust, mantle, and core. They show volatile behavior and tend to be incompatible except for fluorine, which makes them key tracers of fluid-mediated and/or melt-mediated chemical transport processes. Even small quantities of halogens can profoundly affect many physicochemical processes such as melt viscosity, the temperature stability of mineral phases, the behavior of trace elements in aqueous fluids, or the composition of the atmosphere through magma degassing. Experiments allow us to simulate deep-Earth conditions. A comparison of experimental results with natural rocks helps us to unravel the role and behavior of halogens in the Earth’s interior.