Isotopic studies of crustal and mantle evolution

地壳和地幔演化的同位素研究

• 批准号: 121767-2013
• 负责人: Stevenson, Ross
• 金额: $ 1.97万
• 依托单位: Université du Québec à Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=593328
• 关键词: Isotopic; studies; crustal; mantle; evolution

The principal theme of my research is deciphering how the Earth's continental crust formed and how the formation of this crust led to the formation, of continents, sedimentary basins, mineral deposits, and depleted mantle and enriched mantle reservoirs. Field and geochemical studies reveal the interactions between these reservoirs and implications for socio-economic benefits in terms of mineral exploration models, climate change and food security. The Discovery Grant Program provides me with the funds to undertake innovative research. This includes the origin of Earth's early crust, how this crust formed continents and mineral deposits, and how the collision and separation of continents influenced Earth's climate in the form of past glaciation events. The erosion of the continents produces both sediments and soils. The same geochemistry used to characterize the evolution of the continents can be used to characterise the soil and climate of a given growing region. This information is used to characterise agricultural terroirs in Quebec to support consumer confidence in the source of local produce and farmers in defining the uniqueness of their produce in the face of global competition.

我研究的主要主题是破译地球大陆地壳是如何形成的，以及地壳的形成是如何导致大陆、沉积盆地、矿藏和亏损地幔和富集地幔储集层的形成的。实地和地球化学研究揭示了这些储集层之间的相互作用，以及在矿产勘探模式、气候变化和粮食安全方面对社会经济效益的影响。探索助学金计划为我提供了进行创新研究的资金。这包括地球早期地壳的起源，地壳如何形成大陆和矿藏，以及大陆的碰撞和分离如何以过去冰川事件的形式影响地球气候。大陆的侵蚀产生了沉积物和土壤。用来描述大陆演化的同一种地球化学，也可以用来描述特定种植区的土壤和气候。这些信息被用来描述魁北克的农业地形，以支持消费者对当地农产品来源的信心，以及农民在面对全球竞争时定义其农产品的独特性。