Gravity Survey of Lakes Albert, George and Edward, East Africa (Uganda and Zaire)

东非艾伯特湖、乔治湖和爱德华湖（乌干达和扎伊尔）重力测量

• 批准号: 9104812
• 负责人: Garry Karner
• 金额: $ 11.92万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-08-15 至 1993-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9104812&HistoricalAwards=false
• 关键词: Gravity; Survey; Lakes; Albert; George

In areas of continental rifting, the flanks of the actively extending areas are commonly topographically elevated. Flexural rebound of the lithosphere in response to tectonic unloading during extension has been proposed to be the dominant process by which rift flank topography is generated, although other explanations are possible. This project will attempt to rigorously test this hypothesis by using gravity data coverage of several large lake systems in the East Africa rift. Gravity data on land around the lakes is adequate to model the profiles, but data from the lakes are sparse, yet the lakes mark the greatest depressions of the system. In cooperation with the Ugandan Department of Geological Survey and Mines and the Zairian University of Lubumbashi, gravity surveys of Lakes Albert, George and Edward will be performed and resulting data used in detailed three-dimensional models of this area. Results are expected to determine the role of tectonic unloading in rift-flank topography development.

在大陆裂谷地区， 延伸区域通常在地形上被抬高。 弯曲 岩石圈对构造卸载的响应 延伸被认为是主导过程， 裂谷侧面地形的产生，虽然其他解释是 可能 本项目将试图严格测试这一点 几个大湖泊重力资料覆盖假设 东非大裂谷的星系 地球周围陆地的重力数据 湖泊足以模拟剖面，但来自湖泊的数据 是稀疏的，但湖泊标志着最大的洼地， 系统 与乌干达地质部合作， 测量和矿业部与卢本巴希扎伊尔大学，重力 将对阿尔伯特湖、乔治湖和爱德华湖进行调查， 由此产生的数据用于详细的三维模型， 区 预计结果将确定构造的作用 断翼地形发育期的卸荷作用。