The Genetic Relationship of Garnet- and Gahnite-Rich Rocks to Broken Hill-Type Lead-Zinc-Silver Deposits in the Curnamona Province, Australia: Implications for Exploration

澳大利亚库纳莫纳省富含石榴石和辉石榴石的岩石与断山型铅锌银矿床的成因关系：对勘探的启示

• 批准号: 0309627
• 负责人: Paul Spry
• 金额: $ 16.76万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-01 至 2006-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0309627&HistoricalAwards=false
• 关键词: Genetic; Relationship; Garnet; Gahnite; Rich

EAR-0309627SpryThe Broken Hill deposit, Australia, is the largest known concentration of lead, zinc, and silver in the world. Understanding this deposit's origin is critical for developing new exploration models. This project will determine the origin of garnet- and gahnite-rich rocks in and adjacent to deposits in the Broken Hill and Olary Domains of the Curnamona Province. Field mapping will be used to determine the stratigraphic and structural relationships of these rocks to mineralization. This work will be supplemented by ion microprobe (SHRIMP) U-Pb geochronology, and major- and trace-element studies of garnet and gahnite using electron microprobe and laser-ablation inductively coupled plasma mass spectrometer analyses. The project will enhance infrastructure for research and education by supporting collaboration of US and Australian government agencies, universities, and mining industry. It will also support graduate and undergraduate students, and allow them to acquire knowledge for careers involving mineral deposits in academia, industry or the government. Furthermore, geochemical and geochronological data derived from the study will be incorporated into databases made available to the public through the NSF-sponsored Geosciences Network (GEON) and the chronostratigraphic database initiative currently under development (CHRONOS).

澳大利亚布罗肯希尔存款是世界上已知的最大的铅、锌和银集中地。了解该存款的成因是发展新的勘探模式的关键。该项目将确定Curnamona省Broken Hill和Olary地区矿床及其附近富含石榴石和锌尖晶石的岩石的起源。将使用野外测绘来确定这些岩石与矿化的地层和结构关系。这项工作将补充离子微探针（SHRIMP）U-Pb地质年代学，和主要和微量元素的研究石榴石和锌尖晶石使用电子微探针和激光烧蚀电感耦合等离子体质谱仪分析。 该项目将通过支持美国和澳大利亚政府机构、大学和采矿业的合作，加强研究和教育基础设施。它还将为研究生和本科生提供支持，并使他们能够获得学术界，工业界或政府中涉及矿床的职业知识。此外，从研究中获得的地球化学和地质年代学数据将被纳入通过国家科学基金会赞助的地球科学网络（GEON）和目前正在开发的年代地层数据库倡议（CHRONOS）向公众提供的数据库。