Fluid saturation and volatile partitioning between melts and hydrous fluids in crustal magmatic systems: The contribution of experimental measurements and solubility models
Fluid saturation and volatile partitioning between melts and hydrous fluids in crustal magmatic systems: The contribution of experimental measurements and solubility models
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DOI：
10.1016/j.earscirev.2012.06.005
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发表时间：
2012-09-01
影响因子：
12.1
通讯作者：
Alletti, M.
中科院分区：
文献类型：
--
作者：
Baker, D. R.;Alletti, M.
这项工作回顾了对地壳熔体中预期挥发物浓度的实验限制以及此类熔体与单独流体相的饱和度。在给出了地壳和上地幔岩浆源区挥发分浓度的证据并讨论了岩浆系统中挥发分浓度的基础上，总结了压力高达800MPa时H2O、CO2、S、Cl、F和其他少量挥发分的溶解度和分配的实验结果。然后介绍了许多用于预测这些挥发物的溶解度和分配的重要模型，并将两个易于使用的模型与实验数据进行了比较。最后，提出了含有水、二氧化碳和氯的花岗岩成分岩浆的等温封闭系统上升模型，以说明地壳岩浆系统中挥发物的演化，并证明这种演化如何影响矿床的形成和上升岩浆的气泡化。
This work reviews the experimental constraints on the concentrations of volatiles that can be expected in melts found in the crust and the saturation of such melts with a separate fluid phase. After presenting evidence for volatile concentrations in magmatic source regions in the crust and upper mantle and discussing volatile concentrations in magmatic systems, experimental results on the solubility and partitioning of H2O, CO2, S, Cl, F and a few other minor volatiles at pressures up to 800MPa are summarized. Many of the important models used to predict the solubility and partitioning of these volatiles are then introduced and two models, both easily available for use, are compared against experimental data. Finally, a model of isothermal, closed system ascent of a granitic composition magma with water, carbon dioxide and chlorine is presented to illustrate the evolution of volatiles in a crustal magmatic system and to demonstrate how this evolution may affect the formation of ore deposits and the vesiculation of ascending magmas.