Quantifying heat and chemical fluxes between the oceans and ocean crust

量化海洋和洋壳之间的热量和化学通量

• 批准号: 155396-2011
• 负责人: Gillis, Kathryn
• 金额: $ 1.6万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=545678
• 关键词: Quantifying; heat; chemical; fluxes; between

A significant global geochemical cycle throughout most of geological time involves the creation, alteration, and recycling of the oceanic crust. This cycle brings mantle components into the crust and oceans, and seawater components into the mantle through subduction zones. As the largest aquifer on earth, the entire volume of the ocean is cycled through the ocean crust on timescales of 100 to 1000 kyr. This flow of seawater-derived fluids through the crustal aquifer extracts ~30% of the lithospheric heat and promotes chemical exchange between the ocean crust and oceans that moderates seawater chemistry and the subsurface biosphere.

贯穿大部分地质时期的一个重要的全球地球化学循环涉及洋壳的生成、蚀变和再循环。这一循环将地幔成分带入地壳和海洋，并将海水成分通过俯冲带带入地幔。作为地球上最大的含水层，海洋的整个体积在100到1000 kyr的时间尺度上通过海洋地壳循环。海水衍生流体通过地壳含水层的流动提取了约30%的岩石圈热量，并促进了洋壳和海洋之间的化学交换，从而调节了海水化学和地下生物圈。