A new parameterization of hydrous mantle melting
A new parameterization of hydrous mantle melting
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DOI：
10.1029/2002gc000433
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发表时间：
2003-09-09
影响因子：
3.5
通讯作者：
Langmuir, CH
中科院分区：
文献类型：
--
作者：
Katz, RF;Spiegelman, M;Langmuir, CH
[1]在所有构造环境中模拟熔体的形成和运移都需要包括水，因为水对地幔固体和液体的物理性质有很大的影响。为了便于将水包含在熔融模型中，基于热力学模拟领域的最新进展以及橄榄岩熔融和水合平衡的实验研究，本文提出了一种新的熔体分数作为压力、温度、水含量和模型cpx的函数的参数。该参数化法计算效率高，随着更好的实验数据的出现，可以很容易地进行修改。我们将它与其他已发表的参数化方案进行了比较，并在绝热减压熔融(大洋中脊)和水合熔融(俯冲带)的简单计算中进行了检验。
[ 1] Modeling of melt formation and transport in all tectonic settings requires the inclusion of water, since water has large effects on mantle solidi as well as physical properties of liquids. To facilitate the inclusion of water in melting models this paper presents a new parameterization for melt fraction as a function of pressure, temperature, water content and modal cpx, based on knowledge gained from recent advances in the fields of thermodynamic modeling as well as experimental investigations of peridotite melting and hydrous equilibria. The parameterization is computationally efficient and can be modified easily as better experimental data become available. We compare it to other published parameterizations and test it in simple calculations of adiabatic decompression melting (mid-ocean ridge) and hydrous melting ( subduction zone).