Characterization of mantle-derived melts by trace element and water determinations in melt inclusions,glasses and whole rocks

通过熔体包裹体、玻璃和整个岩石中微量元素和水的测定来表征幔源熔体

• 批准号: 38487-2007
• 负责人: Jenner, George
• 金额: $ 1.27万
• 依托单位: Memorial University of Newfoundland
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2009
• 资助国家: 加拿大
• 起止时间: 2009-01-01 至 2010-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=421130
• 关键词: Characterization; mantle; derived; melts; trace

Water plays an essential role in the formation and behaviour of igneous rocks. However, in spite of its importance there are only a limited number of determinations of water contents in melt inclusions. Melt inclusions occur in a variety of mineral types and form an excellent vessel for the preservation of primary, or least degassed, water contents. Recent developments in confocal Raman spectroscopy show that it is an excellent tool for quantification of water contents. The aim of this study is to use Raman spectrometry and other in situ analytical techniques to study the origin of mantle-derived magmas through time. The data obtained will help constrain the evolution of the Earth System and lithosphere-hydrosphere interactions.

水在火成岩的形成和行为中起着至关重要的作用。然而，尽管它的重要性，只有有限的数量的水含量的测定熔融包裹体。熔融包裹体存在于各种矿物类型中，并形成用于保存原始或至少脱气的水含量的极好容器。共焦拉曼光谱的最新发展表明，它是一个很好的工具，定量的水含量。本研究的目的是利用拉曼光谱和其他原位分析技术来研究幔源岩浆的起源。所获得的数据将有助于约束地球系统的演化和岩石圈-水圈的相互作用。