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.

在整个地质时期，整个地球化学周期的一个重要的全球地球化学循环涉及海洋壳的创造，改变和回收。该周期将地幔成分带入地壳和海洋，并通过俯冲带进入地幔中。作为地球上最大的含水层，在100至1000 kyr的时间尺度上，整个海洋的整体体积都循环。海水衍生的液体通过地壳含水层提取物的含量约为岩石圈热的30％，并促进了海壳和海洋之间的化学交换，从而缓解了海水化学和地下生物圈。