Subduction-Zone Fluids
Subduction-Zone Fluids
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DOI：
10.2138/gselements.16.6.395
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发表时间：
2020-12
期刊：
影响因子：
4.5
通讯作者：
C. Manning;M. Frezzotti
中科院分区：
文献类型：
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作者：
C. Manning;M. Frezzotti
流体对俯冲带的物理和化学过程至关重要。俯冲带流体可分为两类。第一，浅层流体，相对较稀，富含水，其性质因俯冲带而异，取决于当地的热状况。第二，深层流体，相对于水含量，具有较高比例的溶解硅酸盐、盐和非极性气体，并且具有与大多数俯冲系统大致相似的性质，而不管当地的热结构如何。我们回顾了两个关键俯冲带背景下的流体的主要物理和化学性质-沿板顶部和下面的火山前缘-以说明浅和深俯冲带流体的不同性质。
Fluids are essential to the physical and chemical processes in subduction zones. Two types of subduction-zone fluids can be distinguished. First, shallow fluids, which are relatively dilute and water rich and that have properties that vary between subduction zones depending on the local thermal regime. Second, deep fluids, which possess higher proportions of dissolved silicate, salts and non-polar gases relative to water content, and have properties that are broadly similar in most subduction systems, regardless of the local thermal structure. We review key physical and chemical properties of fluids in two key subduction-zone contexts—along the slab top and beneath the volcanic front—to illustrate the distinct properties of shallow and deep subduction-zone fluids.