Evolution of Laramide Igneous Rocks Related to Mineralization in Southern Arizona: A Trace-Element and Nd-Sr Isotope Study

与亚利桑那州南部矿化相关的拉拉酰胺火成岩的演化：微量元素和 Nd-Sr 同位素研究

• 批准号: 8719971
• 负责人: Spencer Titley
• 金额: $ 9万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-02-01 至 1991-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8719971&HistoricalAwards=false
• 关键词: Evolution; Laramide; Igneous; Rocks; Related

This project is aimed at establishing the relationship between Laramide magmatic activity and mineralization in southeastern and northwestern Arizona where there are differences in the nature and age of underlying crustal basement rocks. In addition, geochemical characteristics of mineralized and non- mineralized igneous bodies will be compared. These data will help determine why mineralization occurs where it does. The results will prove useful to conceptualization of mineral exploration models and to what extent the underlying crust serves as the ultimate source of metals.

该项目旨在建立亚利桑那州东南部和西北部拉莱姆岩浆活动与成矿作用之间的关系，那里的下伏地壳基底岩石的性质和年龄存在差异。此外，还对矿化和非矿化火成体的地球化学特征进行了对比。这些数据将有助于确定矿化发生的原因。这一结果将有助于矿产勘探模式的概念化，以及下伏地壳在多大程度上是金属的最终来源。