Collaborative Research: Tests of Models of Crustal Accretion and Magnetization at Endeavor Deep

合作研究：Endeavour Deep 地壳吸积和磁化模型的测试

• 批准号: 0137386
• 负责人: Robert Pockalny
• 金额: $ 45.24万
• 依托单位: University of Rhode Island
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0137386&HistoricalAwards=false
• 关键词: Collaborative; Research; Tests; Models; Crustal

The Endeavor Deep along the Juan Fernandez microplate exposes a 50 km-long 3-4 km-deep section of young ocean crust created at very fast spreading rates. This projects involves combined geophysical surveys with in situ observations and sampling along the northeast wall of the Endeavor Deep. High-resolution DSL-120 side-scan sonar will completely insonify the scarp and be used to map regional trends in lithology and structure at 10 m resolution. Rock dredging will identify specific targets for more detailed sampling. Digital imaging and petrologic sampling transects with Jason II will groundtruth the regional view and provide a high-resolution perspective of representative sections. Deep-towed 3-component magnetometer data will map the magnetization of oceanic crust at these same scales.

沿着胡安·费尔南德斯微板块的奋进深海暴露了一个50公里长、3-4公里深的年轻洋壳部分，该部分是以非常快的扩张速度形成的。 该项目包括沿着奋进深海东北壁进行地球物理调查、现场观察和取样。 高分辨率DSL-120侧扫声纳将完全穿透悬崖，并用于以10米分辨率绘制岩性和结构的区域趋势图。 岩石疏浚将确定具体目标，以便进行更详细的采样。 使用Jason II进行的数字成像和岩石学取样断面将为区域视图提供基础，并提供代表性断面的高分辨率透视图。 深拖三分量磁力计数据将以同样的比例绘制海洋地壳的磁化图。