Collaborative Research: Structure and Composition of Fast-Spread EPR (East Pacific Rise) Oceanic Crust Exposed at Pito Deep

合作研究：皮托深海暴露的快速扩散的 EPR（东太平洋海隆）洋壳的结构和成分

• 批准号: 0221064
• 负责人: Richard Hey
• 金额: --
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-02-15 至 2009-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0221064&HistoricalAwards=false
• 关键词: Collaborative; Research; Structure; Composition; Fast

AbstractIn this collaborative investigation, a nested-scale survey of major rift escarpments that expose the upper oceanic crust at Pito Deep, located on the northeast edge of the Easter microplate on the EPR will be surveyed and sampled. Major fault scarps bounding a propagating rift along the NE edge of the Easter Microplate cut abyssal hill lineaments and magnetic anomalies at right angles creating a natural cross section of the oceanic crust. Outcrop areas would be located using DSL-120 sidescan sonar, and observed using ALVIN and Jason II. The rationale for this investigation is to extend knowledge of the internal structure and composition of the upper oceanic crust, and by inference, processes at superfast spreading ridges.

摘要这项合作调查是对主要裂谷悬崖的嵌套尺度调查，该调查将在EPR上的复活节微板岩东北边缘露出Pito Deep的上海壳，并将接受调查和采样。 主要的断层坡道沿着复活节微板的NE边缘界定一个繁殖裂痕，切割了深渊山丘线和直角的磁异常，形成了海洋壳的自然横截面。 露头区域将使用DSL-1220侧扫纳声纳，并使用Alvin和Jason II观察到。 这项研究的基本原理是扩展有关上海皮的内部结构和组成的知识，并通过推断超快速扩散山脊的过程。