Experimental and Theoretical Constraints on Mantle Melting Beneath Ridges: Extentions to the Spinel to Garnet Transition and Beyond

山脊下地幔熔化的实验和理论约束：尖晶石到石榴石过渡及其他的扩展

• 批准号: 9314626
• 负责人: Rosamond Kinzler
• 金额: $ 18.15万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-01-01 至 1996-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9314626&HistoricalAwards=false
• 关键词: Experimental; Theoretical; Constraints; Mantle; Melting

Kinzler 9314626 Motivated by the concern how melting near sp/gt lherzolite transition and magma extraction processes will control major and trace elements in magmas, the PIs propose a 4-step approach in this project to study magma generation processes at mid-oceanic ridges. The PIs will perform simple phase equilibrium experiments at 17-40 kbar, parameterize the results, use simple 2-D and 3-D transport models to examine how trace element abundances in magmas will be affected, and, finally, work out the mass and energy conservation of the models.

Kinzler 9314626 出于对sp/gt二辉橄榄岩过渡附近的熔融和岩浆提取过程如何控制岩浆中的主元素和微量元素的关注，PI在本项目中提出了一个4步方法来研究洋中脊的岩浆生成过程。PI将在17-40千巴下进行简单的相平衡实验，参数化结果，使用简单的二维和三维输运模型来研究岩浆中微量元素丰度将如何受到影响，最后，计算出模型的质量和能量守恒。