Collaborative Research: RUI: The Boron Budget in High-Grade Pelitic Metamorphic Rocks: How, When, and Where Does the Boron Go?

合作研究：RUI：高品位泥质变质岩中的硼收支：硼如何、何时以及去往何处？

• 批准号: 9527020
• 负责人: Melinda Dyar
• 金额: $ 5.63万
• 依托单位: West Chester University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-01-01 至 1997-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9527020&HistoricalAwards=false
• 关键词: Collaborative; Research; RUI; Boron; Budget

9527020 Dyar The proposed research is to study the mineralogy and petrology of certain carriers of boron in order to assess their role in the behavior of boron during high-grade metamorphism, migmatism and anatexis. The carriers to be studied include tourmaline, muscovite, sillimanite, kornerupine, grandidierite, and werdingite in metapelites in Western Maine. Special emphasis will be on assessing the role of aqueous fluid and anatectic melt in removing boron released by tourmaline breakdown. major element compositions will be determined by electron microprobe, Fe+2 and Fe+3 by Mossbauer spectroscopy, H in bulk samples by uranium extraction, H zoning by 15N reaction, bulk and microscopic B, Li and F microscopic measurements by ion microprobe. Results from this study will provide a detailed understanding of the B budget during high-grade metamorphism and provide important insights into the processes by which crystalline terranes are formed.

9527020 Dyar拟议的研究是研究某些硼载体的矿物学和岩石学，以评估它们在高级变质作用、混合作用和深熔作用中对硼行为的作用。 待研究的载体包括缅因州西部变质岩中的碧玺、白云母、硅线石、钾霞石、钾霞石和纤锌矿。 将特别强调评估水流体和重熔熔体在去除电气石分解释放的硼中的作用。 主要元素成分将通过电子探针确定，Fe+2和Fe+3将通过穆斯堡尔谱确定，大块样品中的H将通过铀提取确定，H分区将通过15 N反应确定，大块和微观的B、Li和F将通过离子微探针进行微观测量。 这项研究的结果将提供一个详细的了解B预算在高级变质作用，并提供重要的见解的过程中，结晶岩的形成。