Geology and Geochemistry of the Maimon Formation and Associated Massive Sulfide Deposits, Central Dominican Republic

多米尼加共和国中部迈蒙组及相关大量硫化物矿床的地质和地球化学

• 批准号: 9107784
• 负责人: John Lewis
• 金额: $ 1.69万
• 依托单位: George Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-04-01 至 1994-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9107784&HistoricalAwards=false
• 关键词: Geology; Geochemistry; Maimon; Formation; Associated

This award supports cooperative research in geology and geochemistry between Dr. John F. Lewis of George Washington University and co-investigators in the Dominican Republic Ing. Salvador Brouwer of Falconbridge Dominicana and Dr. Richard Moore of Falconbridge Ltd., Canada. A unique opportunity exists to make a detailed study of the Maimon Formation, a unit of metamorphosed volcanic and minor sedimentary rocks of apparent Late Jurassic or Early Cretaceous age located in the Median Belt of the Dominican Republic. This study will be directed towards (1) an understanding of the early tectonic position of the Maimon-Amina Formations in the evolution of Hispaniola, (2) magmatic affinities of the Maimon-Amina volcanic rocks and studies of their metamorphism and alteration, (3) the genesis of the exhalative volcanogenic massive sulfides within the Maimon Formation. The program will involve mapping, detailed petrographic work, detailed structural analysis, an extensive program of major and trace element geochemical analyses of rocks, age dating and isotopic geochemistry of rocks and sulfides. The program provides the stimulus and opportunity for well- trained Dominican geologists to participate at a level of scientific work not normally available to them. The work also provides for the training of U.S. graduate students. Dominican students participate as field assistants giving them the opportunity to learn and practice good techniques. This type of research provides for the rapid exchange and dissemination of knowledge. In these ways, the project will fulfill the goals of the Science in Developing Countries Program.

该奖项支持地质学方面的合作研究， 约翰·F.华盛顿的乔治的刘易斯 多米尼加共和国的大学和合作研究者 Ing.多米尼加鹰桥的萨尔瓦多布劳威尔和博士。 鹰桥有限公司的理查德摩尔，加拿大 一个独特 有机会对梅蒙进行详细的研究 地层，变质火山岩和次要火山岩的一个单位 表观晚侏罗世或早白垩世沉积岩 年龄位于多米尼加共和国的中间带。 本研究的目的是（1）了解 梅蒙-阿米纳组的早期构造位置 伊斯帕尼奥拉岛的演化;（2） Maimon-Amina火山岩及其变质作用研究 （3）喷流火山成因 梅蒙组中的大量硫化物 程序 将涉及制图，详细的岩相学工作，详细的 结构分析，主要和跟踪的扩展程序 岩石元素地球化学分析、年龄测定和 岩石和硫化物的同位素地球化学 该计划提供了良好的刺激和机会- 培训多米尼加地质学家， 他们通常无法获得的科学工作。 工作 还为美国研究生提供培训。 多米尼加学生作为现场助理参加， 他们有机会学习和实践良好的技术。 这种类型的研究提供了快速的交流和 传播知识。 通过这些方式，该项目将 实现发展中国家的科学目标 程序.