U.S./Sierra Leone Cooperative Investigation of Field Relations And Geochemistry Of The Freetown Layered Complex Sierra Leone (Science In Developing Countries)

描述：PI和他在塞拉利昂地质调查局的合作者将对弗里敦层状复合体中的火成岩进行详细的现场采样和产状测量计划。这些样品将在美国分析其铂族元素和其他相关元素的浓度，以制定区分贫瘠岩石和矿化岩石的地球化学标准。这项研究将提高对控制弗里敦层状复合体中铂族金属浓度和分散的过程的理解。范围：该项目将使合作的PI和他的机构能够发展基于野外测绘和岩石地球化学的矿产资源评估技能。最终，这项研究将有助于更广泛的研究，包括描述弗里敦杂岩的岩浆框架和大大扩展的地球化学数据库。该项目与发展中国家科学计划(SDC)的目标有关，即加强发展中国家的科学和工程基础设施，加强美国科学家和工程师与发展中国家同行之间的合作。

Description: The PI and his collaborator at the Geological Survey of Sierra Leone will undertake a detailed field sampling and attitude measuring program of igneous rocks from the Freetown layered complex. The samples will be analyzed in the U.S. for their concentrations of the platinum-group elements and other related elements, in order to develop geochemical criteria for distinguishing barren from mineralized rocks. This research will improve understanding of the processes that control the concentration and dispersion of platinum-group metals in the Freetown layered complex. Scope: This project will enable the collaborating PI and his institution to develop skills for mineral resources evaluation based on field mapping and rock geochemistry. Eventually, this research will contribute to a much broader study, to include a characterization of the magmatic framework of the Freetown complex and a greatly expanded geochemical data base. This project is relevant to the objectives of the Science in Developing Countries (SDC) Program with regard to strengthening scientific and engineering infrastructure in developing countries and increasing cooperation between U.S. scientists and engineers and their counterparts in developing countries.