高校地质学报2024，Vol.30Issue(2)：142-156,15.DOI:10.16108/j.issn1006-7493.2022098
俯冲带榴辉岩中水的赋存机制及其溶解度的控制因素
Incorporation Mechanism and Solubility Control Factors of Water in Eclogite from Subduction Zone
摘要
Abstract
Eclogite,an important high-pressure metamorphic rock in subduction zone,mainly consists of garnet and omphacite which are known as nominally anhydrous minerals(NAMs).With the increasing temperature and pressure during slab subduction,the water-rich fluid is released,but garnet and omphacite in eclogite can still carry a certain amount of water and therefore become important carriers of water transporting to the interior of earth.During the exhumation of ultra-high pressure rocks,garnet and omphacite can release water as hydroxyl exsolution due to the decreasing pressure,which can consequently cause a series of important geodynamic processes such as retrograde metamorphism and even syn-exhumation magmatism.This paper summarized the analytical methods of water in minerals,the mechanism of water dissolved in garnet and omphacite,the controlling factors of water solubility(e.g.,chemical composition,pressure,temperature,water fugacity,and oxygen fugacity)and the behavior of water in eclogite during slab subduction/exhumation.The future direction and key scientific problems are also prospected.关键词
俯冲带/榴辉岩/名义上无水矿物/矿物含水量Key words
subduction zone/eclogite/nominally anhydrous minerals/water content分类
天文与地球科学引用本文复制引用
殷常鑫,康磊,刘良..俯冲带榴辉岩中水的赋存机制及其溶解度的控制因素[J].高校地质学报,2024,30(2):142-156,15.基金项目
国家自然科学基金项目(42372064 （）
42030307)资助 （）
