Airborne Lithosphere and Ice Cover Experiment: Corridor Aerogeophysics Southeastern Ross Transect Zone (CASERTZ)II

机载岩石圈和冰盖实验：走廊航空地球物理东南罗斯断面带 (CASERTZ)II

• 批准号: 9203170
• 负责人: John Behrendt
• 金额: $ 14.82万
• 依托单位: Geological Survey-Denver
• 依托单位国家: 美国
• 项目类别: Interagency Agreement
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-04-15 至 1995-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9203170&HistoricalAwards=false
• 关键词: Airborne; Lithosphere; Ice; Cover; Experiment

Understanding the tectonic framework across the West Antarctic Rift system is critical for deciphering the evolution of the Pacific margin of Gondwana; for understanding the characteristics of wide and narrow modes of continental extension; and for determining the geological controls on the dynamics of the West Antarctic ice sheet, the globe's last great "marine" ice sheet. This award supports an integrated geophysical experiment including airborne radar and surface altimetry augmented by satellite imagery, in addition to, airborne gravity and aeromagnetic measurements within a carefully chosen West Antarctic corridor. This corridor covers the western portion of the Byrd Subglacial Basin and the easternmost portion of the Interior Ross Embayment. The experimental objectives will be achieved by imaging the tectonic fabric across the West Antarctic Rift system and characterizing the distribution of sedimentary basins, volcanic rocks and important ice dynamical boundaries within this corridor.

了解整个南极裂谷系统的构造框架对于破译冈瓦纳太平洋边缘的演变至关重要。了解大陆扩展的宽和狭窄模式的特征；为了确定西南冰盖动态的地质控制，这是全球最后一个伟大的“海洋”冰盖。 该奖项支持一项集成的地球物理实验，包括卫星图像增强的空气中雷达和表面高度测定，此外，在精心选择的西南极走廊内的空气中重力和航空磁测量。 该走廊覆盖了伯德冰山盆地的西部和内部罗斯胚胎的最东部部分。 实验目标将通过对整个南极裂谷系统的构造织物进行成像，并表征该走廊内沉积盆地，火山岩和重要的冰界边界的分布。