New Isotopic Approaches to Hydrothermal Ore Deposits

热液矿床同位素新方法

• 批准号: 9004413
• 负责人: Alexander Halliday
• 金额: $ 13万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-01 至 1993-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9004413&HistoricalAwards=false
• 关键词: New; Isotopic; Approaches; Hydrothermal; Ore

This research will emphasize integration of isotopic, chemical and fluid inclusion studies, the relatively new techniques and approaches to include: (1) Sm-Nd and U-Pb dating of minerals such as fluorite, cassiterite and garnet, (2) high resolution U-Pb and 40Ar-39Ar geochronological studies of the relationship between the cooling history of pluton, and the age and temperature of associated hydrothermal activity, (3) Rb-Sr and 40Ar-39 dating studies of fluid inclusions, and (4) multi-isotopic (Nd,Sr,Pb,O, H,N,Ar,S,C) and rare earth element studies of the sources of components in individual minerals and their fluid inclusions. Two areas of classical hydrothermal mineralization in the United Kingdom. The Ns-W-As-Cu mineralization of the Cornubian metallogenic province. The second is the MVT-related fluorite- barite-base metal deposits of the North Pennine Orefield.

这项研究将强调同位素，化学 和流体包裹体研究，相对较新的技术， 方法包括：（1）Sm-Nd和U-Pb测年 （2）高分辨率U-Pb， ~（40）Ar-~（39）Ar年代学研究 岩体的冷却史、成岩时代和温度 Rb-Sr和~（40）Ar-~（39）定年 流体包裹体研究;（4）多种同位素（Nd，Sr，Pb，O， H，N，Ar，S，C）和稀土元素研究 单个矿物及其流体包裹体的成分。 美国两个典型的热液成矿区 王国 科尔努期的Ns-W-As-Cu矿化 成矿区 第二种是与MVT有关的萤石-- 北奔宁矿田的重晶石基金属矿床。