Seafloor Strain Measurements at the Nazca South American Plate Convergence Zone

纳斯卡南美板块辐合带的海底应变测量

• 批准号: 9820026
• 负责人: C. David Chadwell
• 金额: $ 49.93万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-01-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9820026&HistoricalAwards=false
• 关键词: Seafloor; Strain; Measurements; Nazca; South

Funds are provided for the PIs to establish 2 seafloor geodetic reference points on the South American Plate 20 and 50 km upslope of the Peru-Chile Trench at 12 degrees S. Measurements (with 1 cm uncertainty) will be made in the years 2000 and 2002 that will provide informaiton about the mode of deformation of Nazca subduction zone. Partial and full locking as well as stable sliding scenarios will be tested. The work will improve our understanding of the dynamics of ocean-continent plate convergence.

为PI提供资金，以便在南美板块20和秘鲁-智利海沟南纬12度上坡50公里处建立2个海底大地测量参考点。测量（不确定度为1厘米）将于2000年和2002年进行这将提供有关纳斯卡俯冲带变形模式的信息。 将测试部分和完全锁定以及稳定的滑动场景。 这项工作将增进我们对洋陆板块汇聚动力学的理解。