Corridor Aerogeophysics of the Southeastern Ross Transect Zone (CASERTZ), Antarctica

南极洲东南罗斯横断带 (CASERTZ) 走廊航空地球物理

• 批准号: 8919661
• 负责人: John Behrendt
• 金额: $ 23.3万
• 依托单位: UNITED STATES DEPT OF GEOLOGICAL SURVEY
• 依托单位国家: 美国
• 项目类别: Interagency Agreement
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-05-15 至 1993-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8919661&HistoricalAwards=false
• 关键词: Corridor; Aerogeophysics; Southeastern; Ross; Transect

This award will support a combined airborne radar and aeromagnetic survey of two 220 x 330 km regions between the Transantarctica Mountains and Marie Byrd Land during the 1990-91 and 1991-92 field seasons. These efforts will address significant problems identified in the Ross Transect Zone (RTZ) by the National Academy of Sciences (1986) report "Antarctic Solid Earth Sciences Research," and by the report to NSF "A Plan for a United States Program to Study the Structure and Evolution of the Antarctic Lithosphere (SEAL)." The surveys will be flown using the NSF/TUD radar and an areomagnetics system mounted in a light aircraft. The grid spacing will be 5 km and navigation will be by radiopositioning. In addition to maps of subglacial topography and magnetic intensity, attempts will be made to reconstruct the position of subglacial diffractors in three dimensions. This reconstruction should give new information about the distribution of escarpments and therefore the tectonic relationships within the region, especially when combined with the magnetic results. These experiments will be conducted by the Byrd Polar Research Center of the Ohio State University and the Water Resources and Geological Divisions of the U.S. Geological Survey.

该奖项将在1990 - 91年和1991 - 92年的实地赛季期间，支持跨塔尔特卡山脉和玛丽·伯德（Marie Byrd）之间的两个220 x 330公里区域的空中雷达和航空磁性调查。 这些努力将解决由美国国家科学院（National Academy of National Sciences）（1986）在Ross横断面区（RTZ）中发现的重大问题南极岩石圈（密封）的结构和演变。” 调查将使用NSF/TUD雷达和安装在轻型飞机中的磁性系统进行飞行。 网格间距为5公里，导航将通过放射线定位。 除了地图和磁强度的地图外，还将尝试在三个维度中重建亚冰纹衍射器的位置。 这种重建应提供有关悬崖分布以及该区域内的构造关系的新信息，尤其是与磁结果结合使用时。 这些实验将由俄亥俄州立大学的伯德极地研究中心以及美国地质调查局的水资源和地质划分进行。