Interactions Among Rocks, Solutions and Magmas in SubductionZones: Experimental Approach

俯冲带中岩石、溶液和岩浆之间的相互作用：实验方法

• 批准号: 9303967
• 负责人: Peter Wyllie
• 金额: $ 15万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-09-01 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9303967&HistoricalAwards=false
• 关键词: Interactions; Among; Rocks; Solutions; Magmas

9303967 Wyllie This research project is concerned with the origin of the intrusive and extrusive siliceous magmas characteristic of compressive plate boundaries. The processes involved in the flux of materials, vapors and magmas from subducted oceanic crust, through the overlying mantle wedge, and into the continental crust will be examined by means of dehydration- melting experiments. Projects of particular interest include the dehydration melting of amphibolite and biotite- amphibole gneisses in the 10-20 kb range, phase relationships and melting products from basalt-calcite at 10 kb, and determinination of the H2O-undersaturated liquidus surface of monzodiorite as a means to address the origin of mantle-derived LILE-enriched Archean monzodiorites.

9303967 Wyllie本研究项目涉及挤压板块边界特征的侵入和喷出硅质岩浆的起源。 将通过脱水-熔融实验来研究物质、蒸气和岩浆从俯冲洋壳通过上覆地幔楔进入大陆壳的过程。 特别感兴趣的项目包括脱水熔融角闪岩和黑云母角闪片麻岩在10-20 kb的范围内，相关系和熔融产物的玄武岩-方解石在10 kb，和测定的H2O-不饱和液相线表面的二长闪长岩作为一种手段，以解决起源的幔源LILE富集太古代二长闪长岩。