区域变质 meaning in Chinese
regional metamorphism
regionalmetamorphism
Examples
- The majority of fujian gold deposits can be put under predevonian regional metamorphism - epigenetic thermal fluid telescoped and regenerated gold metallogenic system and yanshan tectonic - magmatic thermal fluid gold metallogenic system
根据福建省金矿成矿机理和成矿特征把省内主要金矿划归前泥盆纪区域变质?后生热液叠加改造金矿成矿系统和燕山期构造岩浆-热液金矿成矿系统。 - The results indicate that submarine hot water deposition is the main ore - forming process of the uranium - bearing vonsenite deposit , and that the economic deposit was formed on the basis of further enrichment of boron and iron through the superposition and transformation by regional metamorphism and migmatization
研究表明，该矿床的成矿作用主要表现为海底热水沉积成矿，区域变质混合岩化作用对矿床进行了强烈的叠加改造，使硼铁进一步富集而形成工业矿床。 - The research for metallogenic evolution mechanism in the region indicates that gold ore formation has undergone three stages : gold elementary source bed formation stage from the neo - archean to the paleo - proterozoic and meso - proterozoic , regional metamorphism - migmatization gold reenrichment stage at the late meso - proterozoic , structure - fluid - gold mineralization stage at the yanshan period
对矿带成矿演化机理的研究表明，金矿形成经历了3个阶段：新太古至古、中元古代金初始矿源层形成阶段；中元古代末期区域变质混合岩化金再富集阶段和燕山期构造流体金成矿作用阶段。 - Based on a comprehensive review on research results of metamorphic rocks , the authors argue that the formation and exhumation of uhpm ultra - high pressure metamorphite experienced two stages , i . e . , cold slab subduction and exhumation during 240200ma , and lithosphere delamination and thermal exhumation during 196163ma . the rapid thermal exhumation , co - occurred with extensive regional metamorphism and intermediate - acidic magmatism , implied that the subducted slabs had broken off and delaminated . the
通过全面评述该区变质岩研究成果，作者认为：超高压变质岩的形成和剥露经历了240200ma的板片冷俯冲冷折返和196163ma的岩石圈拆沉热折返热折返伴随了广泛而强烈的区域变质作用和中酸性岩浆活动，指示板片断离拆沉的发生超高压变质岩