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

该奖项支持乔治华盛顿大学的约翰·F·刘易斯博士与多米尼加共和国的合作研究人员在地质学和地球化学方面的合作研究。多米尼加鹰桥公司的萨尔瓦多·布劳沃和加拿大鹰桥有限公司的理查德·摩尔博士。有一个独特的机会来详细研究Maimon组，Maimon组是位于多米尼加共和国中带的一个明显晚侏罗世或早白垩世时代的变质火山岩和次要沉积岩单元。这项研究将致力于(1)了解迈蒙-阿米纳建造在伊斯帕尼奥拉演化中的早期构造位置，(2)迈蒙-阿米纳火山岩的岩浆亲和力及其变质和蚀变研究，(3)迈蒙建造内喷流火山成因块状硫化物的成因。该计划将涉及测绘、详细的岩石学工作、详细的构造分析、广泛的岩石常量和微量元素地球化学分析、岩石和硫化物的年龄测定和同位素地球化学。该计划为训练有素的多米尼加地质学家提供了刺激和机会，让他们参与到他们通常无法完成的科学工作中。这项工作还规定了对美国研究生的培训。多米尼加学生以现场助理的身份参加，让他们有机会学习和练习好的技术。这类研究有助于快速交流和传播知识。通过这些方式，该项目将实现发展中国家科学计划的目标。

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.