International Postdoctoral Fellows Program: Structural Geology of the Eastern Brazilian Shield

该奖项是根据国际 博士后研究员计划，使 美国科学家和工程师将进行三次 在国外进行为期12个月的研究 卓越的中心。 该计划的 奖项提供机会， 研究，以及使用独特或 配套设施、专业知识和 国外的实验条件。 实际 对这项研究的财政支持将 从美国-巴西合作科学 程序. 该奖项将支持为期12个月的 博士的博士后研究访问。Dickson 伊利诺伊大学的坎宁安在 Urbana与Fernando Flecha Alkmim博士合作 在联邦大学的欧罗普雷托， 巴西 本研究项目涉及的研究 东缘构造演化 巴西盾 该项目处理 关于结构的重要问题 巴西人（=泛非） 移动的带及其构造关系 曼蒂凯拉的前寒武纪基底 到圣弗朗西斯科克拉通。 的 项目具有重要意义， 前寒武纪的认识过程 大陆拼合与构造 南美洲的演变。 曼蒂奎利亚的构造地质学 省是鲜为人知的和现有的地图 该地区强调巴西的趋势， 省 最近的侦察调查 由UFOP和伊利诺伊大学 研究人员指出，该地区包含 有证据表明一个旧的地下室 含跨亚马逊（2.0 B.y）年龄 结构. 如果这是正确的，它将 完全改变了人们对前冈瓦纳大陆的看法 南美洲东缘的地质。 曼蒂凯拉省可能更好地关联 与西非国家相比， 美国人的秘密 巴西利亚诺带可能标志着 晚元古代缝合线叠加在更古老的 跨亚马逊的趋势。 为了解决这些问题，坎宁安博士计划 进行详细的结构分析 结合详细的岩石学研究， 卫星图像分析、地形研究 和地质年代学采样沿沿着三东- 欧罗普雷托和 大西洋海岸 多学科方法 使用这些技术从来没有 应用于巴西东部的构造问题。 授标建议提供资金， 包括国际旅行， 12个月和一小笔旅行津贴， 国内旅行和实地工作。

This award is under the International Postdoctoral Fellows Program, which enables U.S. scientists and engineers to conduct three to twelve months of research abroad at research centers of proven excellence. The program's awards provide opportunities for joint research, and the use of unique or complementary facilities, expertise and experimental conditions abroad. The actual financial support for this research will be from the U.S.-Brazil Cooperative Science Program. This award will support a twelve-month postdoctoral research visit by Dr. W. Dickson Cunningham of the University of Illinois at Urbana to work with Dr. Fernando Flecha Alkmim at the Federal University of Ouro Preto in Brazil. This research project involves the study of the tectonic evolution of the eastern edge of Brazilian Shield. The project addresses important questions concerning the structural significance of the Brasiliano (=Pan African) mobile belt and the tectonic relationship of the Precambrian basement of the Mantiqueira province to the Sao Francisco craton. The project has important implications for understanding processes of Precambrian continental amalgamation and the structural evolution of South America. The structural geology of the Mantiqueria province is poorly known and existing maps of the region emphasize Brasiliano trends in the province. Recent reconnaissance investigations by UFOP and the University of Illinois researchers indicate that the region contains evidence for an older basement terrane containing Transamazonian (2.0 b.y) age structures. If this is correct, it will totally change perceptions of the pre-Gondwana geology of the eastern margin of South America. The Mantiqueira province may correlate better with West African cratons than with South American cratons. The Brasiliano belt may mark a Late Proterozoic suture superimposed on older Transamazonian trends. To address these issues, Dr. Cunningham plans to conduct a detailed structural analysis combined with detailed petrographic studies, satellite imagery analysis, topographic studies and geochronological sampling along three east- west transects between Ouro Preto and the Atlantic coast. A multi-disciplinary approach using these techniques has never before been applied to tectonic problems in eastern Brazil. The award recommendation provides funds to cover international travel, a stipend for twelve months and a small travel allowance for in-country travel and field work.