ABR: Using Existing ALVIN Data to Study Volcanic Growth Faults and the Importance of Sheet Flows vs Pillow Lavas on Mid-Ocean Ridges

ABR：利用现有的 ALVIN 数据研究火山生长断层以及大洋中脊上席状流与枕状熔岩的重要性

• 批准号: 9816021
• 负责人: Kenneth Macdonald
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-03-15 至 2005-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9816021&HistoricalAwards=false
• 关键词: ABR; Using; Existing; ALVIN; Data

The focus of this work will be on two aspects of the architecture of the ocean crustal volcanic section: the role of volcanic growth faults on slow-spreading ridges, and the relative abundance of different types of lava flow morphologies as a function of spreading rate. The data sets to be analyzed include archived ALVIN bathymetry, video imagery, and outboard 35 mm camera still pictures collected during traverses across scarps on the Mid-Atlantic Ridge, the Galapagos spreading center, the East Pacific Rise, the Cayman trough, and the Juan de Fuca/Gorda Ridge.

这项工作的重点将放在海洋地壳火山断面结构的两个方面：火山生长断层在缓慢扩张海脊上的作用，以及不同类型熔岩流形态的相对丰度随扩张速度的变化。待分析的数据集包括存档的ALVIN测深、视频图像和在穿越大西洋中脊、加拉帕戈斯扩张中心、东太平洋隆起、开曼海槽和胡安·德富卡/戈尔达脊的陡坎期间收集的舷外35毫米照相机静止图像。