The Role of Reducing Conditions in Building Mercury
The Role of Reducing Conditions in Building Mercury
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DOI：
10.2138/gselements.15.1.39
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发表时间：
2019-02-01
期刊：
影响因子：
4.5
通讯作者：
Wood, Bernard J.
中科院分区：
文献类型：
--
作者：
Cartier, Camille;Wood, Bernard J.
极端还原的条件，例如那些在汞的吸积和分化过程中盛行的条件，改变了许多化学元素的“正常”行为模式。亲石元素可以变成亲胆碱，亲铁元素可以变成亲石元素，而挥发性元素可以变得难熔。在这种情况下，意想不到的元素，如硅，被提取到核心，而其他元素(S，C)集中在行星的硅酸盐部分，最终导致奇异的表面矿物学。在这篇文章中，实验、理论和宇宙化学的论点被用来理解还原条件是如何影响水星的，从它的积木的性质到它的火山活动的动力学。
Extremely reducing conditions, such as those that prevailed during the accretion and differentiation of Mercury, change the "normal" pattern of behaviour of many chemical elements. Lithophile elements can become chalcophile, siderophile elements can become lithophile, and volatile elements can become refractory. In this context, unexpected elements, such as Si, are extracted to the core, while others (S, C) concentrate in the silicate portion of the planet, eventually leading to an exotic surface mineralogy. In this article, experimental, theoretical and cosmochemical arguments are applied to the understanding of how reducing conditions influenced Mercury, from the nature of its building blocks to the dynamics of its volcanism.