Compositional Variation and Melting Processes in the Ocean Upper Mantle and the Implications for Mantle Geodynamics

海洋上地幔的成分变化和融化过程及其对地幔地球动力学的意义

• 批准号: 8918905
• 负责人: Henry Dick
• 金额: $ 10.1万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-12-01 至 1992-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8918905&HistoricalAwards=false
• 关键词: Compositional; Variation; Melting; Processes; Ocean

Peridotites and dunites are rocks that are found only rarely in the ocean basins and are thought to come from the mantle below the ocean crust and to be an important component in the genesis of the crust. This project will study the petrology and geochemistry of peridotites obtained from the Kane fracture zone in the North Atlantic. The petrology of abyssal dunites will be studied to determine the amount of interaction of ascending magmas with the ocean crust and the implications for the chemistry of the upper mantle.

橄榄岩和邓矿是很少在海盆中发现的岩石，被认为是来自海角下方的地幔，并且是地壳起源的重要组成部分。 该项目将研究从北大西洋凯恩裂缝区获得的橄榄岩的岩石学和地球化学。 将研究深渊Dunites的岩石学，以确定上升岩浆与海皮的相互作用量以及对上地幔化学的影响。