Collaborative Research: Testing endmember hypotheses for the source of mineralizing fluid(s) in iron oxide - copper - gold (IOCG) deposits

合作研究：测试氧化铁-铜-金 (IOCG) 矿床中矿化流体来源的端元假设

• 批准号: 2233425
• 负责人: Adam Simon
• 金额: $ 44.43万
• 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: 2023
• 资助国家: 美国
• 起止时间: 2023-08-15 至 2026-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2233425&HistoricalAwards=false
• 关键词: Collaborative; Research; Testing; endmember; hypotheses

Societal demand for critical minerals like copper will only expand as our use of technology such as battery electric vehicles, solar panels and wind turbines increases. It is important to understand how elements such as copper concentrate in ore deposits. One major obstacle facing the growing demand for copper is how to explore for and find copper ore deposits. This project focuses on improving our understanding of how two types of copper ore deposits form and developing methods to find undiscovered deposits. It will also support a graduate student and several undergraduates who will be trained in mapping, logging, sampling, and laboratory methods.This project will be the first to constrain the multi-element isotopic signature of rocks in a large iron oxide - copper - gold (IOCG) mineral system (Humboldt) that serves as the end-member type locale for the sedimentary basin derived evaporitic brine genetic model and compare those data with a purely magmatic-hydrothermal porphyry-copper mineral system (Yerington), and a seemingly mixed basinal brine and magmatic-hydrothermal system IOCG system (Ernest Henry). The integrated isotopic analysis should reveal end-member chemical signatures that can be used to define these systems as well as potentially be used as a geochemical vector to find unknown mineralization systems.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

随着我们使用电池电动汽车，太阳能电池板和风力涡轮机等技术的使用，对铜等关键矿物的社会需求只会扩展。 重要的是要了解诸如铜等元素如何集中在矿石沉积中很重要。对铜的需求不断增长的一个主要障碍是如何探索和找到铜矿矿床。该项目的重点是提高我们对两种类型的铜矿矿床的理解，并开发出未发现存款的方法。它还将支持一名研究生和几名大学生，他们将接受培训，记录，抽样和实验室方法的培训。该项目将是第一个限制氧化铁大岩石中岩石的多元素同位素签名 - 铜 - 金 - 金（金）矿物质系统（IOCG）矿物质系统（IOCG）矿物质模型，以便作为本质上的基本模型，以供应式的型号，以供应式种可群，以供应式种可群，以供应式的种可群体供应种可症状的种可群体和强制性型号。这些数据具有纯粹的岩浆热热斑岩矿物矿物系统（Yerington），以及看似混合的盆地盐水和岩浆 - 热热系统IOCG System（Ernest Henry）。集成的同位素分析应揭示可用于定义这些系统的最终成员化学特征，并可能用作地球化学载体，以找到未知的矿化系统。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子和更广泛影响的评估来通过评估来获得支持的。