Cenozoic Volcanism and Crustal Evolution in Northern Mexico:Integrated Studies of Volcanic Rocks and Xenoliths

墨西哥北部新生代火山活动与地壳演化:火山岩与捕虏体的综合研究

• 批准号: 9105149
• 负责人: Kenneth Cameron
• 金额: $ 8.5万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-06-01 至 1994-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9105149&HistoricalAwards=false
• 关键词: Cenozoic; Volcanism; Crustal; Evolution; Northern

This project is to study new xenolith localities recently found in the late Cenozoic Camargo basalt field, and to continue research on mid-Cenozoic volcanic rocks. Some of the new sites have crustal xenolith suites containing mafic hornblende granulites and mafic igneous cumulates, that may represent different levels of the crust. The objective is to construct the best constrained model possible for the evolution of continental volcanic rocks. This model will be based on the volcanic rocks, contemporaneous cumulates, wall rocks, and mantle xenoliths. This project will test how successful current mathematical models are in reproducing the isotopic, major-element, and trace-element chemistries of the various rock types.

本项目旨在研究晚新生代Camargo玄武岩田新发现的捕虏体位置，并继续开展中新生代火山岩研究。一些新发现的地点有含有基性角闪质麻粒岩和基性火成岩堆积的壳体套，它们可能代表了地壳的不同层次。目的是为大陆火山岩的演化建立最好的约束模型。该模型将以火山岩、同生堆积物、围岩和地幔捕虏体为基础。该项目将测试当前的数学模型在再现各种岩石类型的同位素、主元素和痕量元素化学方面的成功程度。