Collaborative Research: Aerogeophysics in the Canada Basin

合作研究：加拿大盆地的航空地球物理学

• 批准号: 9531249
• 负责人: Lawrence Lawver
• 金额: $ 30.51万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-06-15 至 2000-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9531249&HistoricalAwards=false
• 关键词: Collaborative; Research; Aerogeophysics; Canada; Basin

The Canada Basin of the Arctic Ocean remains one of the least known regions of the earth, yet understanding it's evolution is important to understanding the history of ocean circulation, climate generation, as well as the fact that the Alaska margin of the Canada Basin contains one of the world's giant hydrocarbon fields. In order to complete the aerogeophysical coverage of the Canada Basin between the Alpha and Mendeleyev ridges and the Arctic Alaska/Canada and Far Eastern Siberia margins, two seasons of aerogeophysics are proposed. The three most important aspects of the proposed work are: 1) Collect reconnaissance aerogeophysical data that will allow specific hypotheses to be formulated about the tectonic evolution of the Canada Basin of the Arctic. 2) Combine the aerogeophysical data collected offshore with a high-resolution aeromagnetics survey of Arctic Alaska's continental shelf. Work with these two datasets should definitely answer the question of the nature of the Ocean-Continent Boundary along Arctic Alaska. 3) Survey in detail gravity over the Chukchi Plateau and onto the continental margin of what should be the buried North Chukchi Basin to allow insight into the evolution of this margin. Present data does not allow reasonable interpretation of the evolution of this margin.

北冰洋的加拿大盆地仍然是地球上最不为人所知的地区之一，但了解它的演变对于了解海洋环流、气候产生的历史，以及加拿大盆地的阿拉斯加边缘包含世界上最大的碳氢化合物油田的事实都很重要。为了完成阿尔法和门捷列夫脊之间的加拿大盆地和北极阿拉斯加/加拿大和远东西伯利亚边缘的航空地球物理覆盖，提出了两个季节的航空地球物理。这项工作的三个最重要的方面是：1)收集侦察航空地球物理数据，这将允许制定关于北极加拿大盆地构造演化的具体假设。2)将海上收集的航空地球物理数据与北极阿拉斯加大陆架的高分辨率航空磁调查相结合。利用这两个数据集，可以明确地回答沿北极阿拉斯加的洋陆边界的本质问题。3)在楚科奇高原和北楚科奇盆地的大陆边缘进行详细的重力测量，以深入了解这一边缘的演变。目前的资料不能合理地解释这一边缘的演变。