A 2-D SeaMARC II/Gravity of Near-Axis 'Gravity Rolls' on the Southern East Pacifc Rise

东南太平洋海隆上的二维 SeaMARC II/近轴“重力滚动”重力

• 批准号: 8911610
• 负责人: Margo Edwards
• 金额: $ 33.07万
• 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: 1990
• 资助国家: 美国
• 起止时间: 1990-07-01 至 1993-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8911610&HistoricalAwards=false
• 关键词: SeaMARC; II; Gravity; Near; Axis

This is a project to determine the time of origin, linkage to mantle upwelling, and mode of development of cross-grain gravity rolls on the southern East Pacific Rise. The principal Investigators will carry out SeaMARC II and gravity surveys of 0 to 6 million year old crust on west flank of the East Pacific Rise between 16 and 19 South. The extensive SeaMARC coverage will also be used to address problems relating to the evolution of large offset overlapping spreading centers. %%% SeaMARC II is a sea floor mapping tool that is used extensively to provide extensive bathymetric and side scan imagery. The data will provide important information on the morphology and tectonic history of the sea floor and will also assist in making better determinations of topographic corrections to the gravity data. The cross grain gravity rolls are anomalous features originally detected in satellite data. These interesting and anomalous features have not been thoroughly studied from a surface ship. The Principal Investigators have provided leadership in the area of marine tectonics and gravity data interpretation for many years. They are uniquely well qualified for this study.

这是一个确定起源时间、链接的项目 地幔上涌，以及横纹发育模式 东太平洋海隆南部的重力滚动 校长 调查人员将进行SeaMARC II和重力调查， 东太平洋西翼600万年前地壳 从16号到19号往南。 广泛的SeaMARC覆盖范围 也将用于解决与进化有关的问题， 大偏移重叠的扩散中心。 %%% SeaMARC II是一种海底测绘工具， 提供广泛的测深和侧面扫描 意象 这些数据将提供有关 海底的形态和构造历史， 协助更好地确定地形校正 重力数据。 横纹重力滚动是异常的 卫星数据中最初检测到的特征。 这些 有趣和异常的特征还没有完全 在水面舰艇上进行研究 主要研究者已经 在海洋构造学和重力学领域发挥了领导作用 多年来的数据解释。 他们是独一无二的 有资格参加这项研究。