U.S.-Namibia Dissertation Enhancement: Application of Visible and Near-infrared Spectroscopic Methods to Identify Zonation of Hydrothermal Mineralization at Navachab Gold Deposit

美国-纳米比亚论文强化：应用可见光和近红外光谱方法识别纳瓦查布金矿热液成矿带

• 批准号: 0525981
• 金额: $ 0.72万
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-01 至 2008-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0525981&HistoricalAwards=false
• 关键词: U.S.; Namibia; Dissertation; Enhancement; Application

The goal of this dissertation enhancement research is to generate a three-dimensional model of mineralization of the Navachab gold deposit in Namibia by integrating spectroscopic measurements collected at the surface, from drill core, and from airborne and satellite hyperspectral remote sensing systems. The geological conditions that led to the formation of this and other related deposits are poorly understood; this project will characterize the lateral and vertical zonation of minerals within the Navachab hydrothermal system and determine how those distributions can be recognized spectrally. The geological characteristics to be documented at this site will contribute to a better understanding of element redistribution in the Earth's crust and provide improved criteria for exploration using field-based and remote-sensing methods in many regions of the world. Because the Navachab Mine is Namibia's only active gold mine and a major stimulus for economic development in the country, an improved understanding of this formation will enhance efforts to locate and develop such resources in Namibia. The project builds on a successful international collaboration among the South Dakota School of Mines and Technology, the Geological Survey of Namibia, AngloGold Ashanti (owners of the Navachab Mine), and the U.S. Geological Survey's National Center for Earth Resources Observation and Science. These partners are committed to using new remote-sensing technology to advance understanding of fundamental geological processes as well as to assist Namibia both in sustainable development of its natural resources and in training a technologically-advanced domestic workforce. For the U.S. doctoral student, the project will provide first-hand experience in the increasingly global practices of scientific research and mineral exploration and production.

这项论文增强研究的目的是通过整合从地表，钻芯以及空中和卫星高光谱遥感系统中收集的光谱测量值，从而产生纳米比亚纳瓦查卜金矿矿床的三维模型。 导致该矿床和其他相关沉积物形成的地质条件知之甚少；该项目将表征Navachab热液系统中矿物质的横向和垂直分区，并确定如何在光谱中识别这些分布。 在本网站上要记录的地质特征将有助于更好地理解地球地壳中的元素再分配，并在世界许多地区使用基于现场和遥感的方法提供了改进的探索标准。由于纳瓦卡布矿是纳米比亚唯一的活跃金矿，也是该国经济发展的主要刺激，因此对这种形式的改进将加强在纳米比亚定位和开发此类资源的努力。 该项目建立在南达科他州矿业与技术学院，纳米比亚地质调查局，Anglogold Ashanti（Navachab矿的所有者）以及美国地质调查局国家地球资源观察与科学中心。 这些合作伙伴致力于使用新的遥感技术来提高人们对基本地质过程的了解，并协助纳米比亚的自然资源的可持续发展以及培训技术领先的国内劳动力。 对于美国博士生，该项目将在越来越多的全球科学研究，矿产探索和生产方面提供第一手经验。