Deformation Rates based on Undersea Tectonic Geomorphology

基于海底构造地貌的变形率

• 批准号: 9628576
• 负责人: Robert Yeats
• 金额: $ 7.78万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-01 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9628576&HistoricalAwards=false
• 关键词: Deformation; Rates; based; Undersea; Tectonic

9628576 Yeats Rates of deformation are data that are difficult to obtain, but essential for the understanding of active tectonism in any tectonic environments. Rates of deformation are determined by various means, both directly and indirectly, but commonly employ phenomena of tectonic geomorphology are currently almost entirely based on subaerial landforms, even though most active plate boundaries are offshore. This project will attempt to use subsea landforms off the Cascadia Coast to estimate shortening rates during that part several thousand years. Results should illustrate the potential of active tectonics studies offshore to add considerable rate information for on-going deformation.

变形速率是难以获得的数据，但对于理解任何构造环境中的活动构造是必不可少的。变形速率是由各种直接或间接的方法决定的，但通常采用的构造地貌学现象目前几乎完全基于陆地地貌，即使大多数活动板块边界都在近海。该项目将尝试利用卡斯卡迪亚海岸附近的海底地貌来估计该地区几千年来的缩短速度。这些结果应该说明了近海活动构造研究的潜力，可以为正在进行的变形增加相当大的速率信息。