Rheology and Faulting of the Deep Mantle: Experimental Deformation of Transition Zone and Lower Mantle Phases and Their Analogues

深部地幔流变学和断层作用：过渡带和下地幔相及其类似物的实验变形

• 批准号: 9219369
• 负责人: Harry Green
• 金额: $ 29.54万
• 依托单位: University of California-Riverside
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-06-01 至 1997-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9219369&HistoricalAwards=false
• 关键词: Rheology; Faulting; Deep; Mantle; Experimental

The PI will continue quantitative deformation experiments on carefully chosen structural analogues of deep mantle phases and to perform parallel qualitative deformation experiments on silicates of mantle composition. The analogue experiments will be performed in Griggs-type apparatus at relatively low pressures. The mantle silicate experiments will be performed at pressures of 14-25 GPa in a multianvil apparatus. Comparison of the deformation mechanisms activated in the silicates with those activated in the analogues will provide constraints on the reliability of extrapolation to mantle conditions of measurements made on the analogues.

PI将继续对精心挑选的深部地幔相结构类似物进行定量变形实验，并对地幔成分的硅酸盐进行平行定性变形实验。 模拟实验将在格里格斯型装置中在相对较低的压力下进行。 地幔硅酸盐实验将在多砧装置中在 14-25 GPa 的压力下进行。 硅酸盐中激活的变形机制与类似物中激活的变形机制的比较将为对类似物进行的测量的地幔条件外推的可靠性提供限制。