"Follow the Water": Controls on the Distribution and Preservation of Habitability from Water-Rock Interactions in the Earth's Deep Crust

“追随水流”:地壳深处水-岩相互作用对宜居性分布和保存的控制

基本信息

  • 批准号:
    RGPIN-2018-06149
  • 负责人:
  • 金额:
    $ 6.85万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2022
  • 资助国家:
    加拿大
  • 起止时间:
    2022-01-01 至 2023-12-31
  • 项目状态:
    已结题

项目摘要

Summary of Proposal Our understanding of the Earth, as scientists, engineers, policy makers and public citizens, can inadvertently be constrained by the fact that human life is just a thin veneer on the surface of the Blue Planet. Fundamental challenges remain concerning the complexities of chemical, physical (and biological) interactions in the Earth's subsurface - in particular the nature of subsurface water the Earth's Deep Hydrosphere. For instance, geochemists have long relied on fluid inclusions - microscopic time capsules of fluid and gas encased in host rocks and fracture minerals - to access preserved samples of ore-forming fluids, metamorphic fluids, and remnants of the ancient atmosphere and hydrosphere. Until recently, macroscopic (flowing) groundwaters were thought to reflect only much younger periods of water-rock reaction and Earth history, due to dilution with large volumes of younger fluids recharging from surface. Over the past 6 years we have explored and expanded our understanding of the depth, distribution, storage and residence time of groundwaters in the Precambrian crust that constitutes > 70% of the Earth's continental lithosphere accessed by our team via working mines, and underground research laboratories worldwide. Our discovery of groundwaters that preserve components that are millions and even > a billion of years old provides the opportunity for new suites of samples for understanding the evolution of the Earth's hydrosphere and atmosphere, challenges our understanding of the habitability of Earth, and informs our thinking about possible groundwater and habitability beneath Mars, and on the icy planets and moons elsewhere in the solar system. As an isotope geochemist and hydrogeologist, my leadership and core contributions to this program are to provide insight, interpretation and critical constraints from the geochemistry and isotopic signatures (using both reactive CHO elements that record the history of chemical and biologically-mediated reactions; and conservative noble gases that identify origin and mixing of components of different provenance) for the fluids and gases that define the hydrogeology and habitability of the deep Earth. In addition to advancing fundamental understanding for NSE, and capturing public imagination about the deep Earth, this research has important practical implications - potentially providing information about ore-forming processes, providing new technology transfer re understanding the degree of isolation of deep subsurface fluids (pertinent to proposed nuclear waste disposal, and carbon capture and storage projects); and providing novel detailed information about the nature of highly saline deep subsurface fluids and gases that will be encountered as humans explore and investigate the deep continental lithosphere. Such a program is well suited to the GeoSciences EG 1506's broad expertise.
作为科学家、工程师、政策制定者和公民,我们对地球的理解可能会无意中受到这样一个事实的限制,即人类生命只是蓝色星球表面上的一层薄薄的装饰。在地球地下化学、物理(和生物)相互作用的复杂性方面仍然存在根本性的挑战,特别是地下水的性质-地球深层水圈。例如,地球化学家长期以来一直依赖于流体包裹体-包裹在寄主岩石和断裂矿物中的流体和气体的微观时间胶囊-来获取保存的成矿流体,变质流体以及古代大气和水圈的残余物样品。直到最近,宏观(流动的)地下水被认为只反映了更年轻的时期的水-岩反应和地球历史,由于稀释与大量的年轻流体从表面充电。在过去的6年里,我们已经探索并扩大了我们对前寒武纪地壳地下水的深度,分布,储存和停留时间的理解,该地壳构成了我们团队通过工作矿山和全球地下研究实验室访问的地球大陆岩石圈的70%以上。我们发现的地下水保存了数百万甚至超过10亿年的成分,为了解地球水圈和大气层的演变提供了新的样本套件,挑战了我们对地球可居住性的理解,并告知我们对火星下可能的地下水和可居住性的思考,以及太阳系其他地方的冰冷行星和卫星。作为一名同位素地球化学家和水文地质学家,我对该项目的领导和核心贡献是从地球化学和同位素特征中提供见解、解释和关键约束(使用记录化学和生物介导的反应的历史的反应性CHO元件;和保守的惰性气体,以确定不同来源的成分的起源和混合)定义地球深部水文地质和可居住性的流体和气体。除了推进对NSE的基本理解,并捕捉公众对地球深部的想象力外,这项研究还具有重要的实际意义-可能提供有关成矿过程的信息,提供新的技术转让,重新理解深部地下流体的隔离程度(与拟议的核废物处置以及碳捕获和储存项目有关);并提供了关于人类探索和研究大陆岩石圈深部时将遇到的高盐深地下流体和气体的性质的新的详细信息。这样的计划非常适合地球科学EG 1506的广泛专业知识。

项目成果

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SherwoodLollar, Barbara其他文献

SherwoodLollar, Barbara的其他文献

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{{ truncateString('SherwoodLollar, Barbara', 18)}}的其他基金

Nominated for the NSERC Herzberg Medal / Nominé pour la Médaille Herzberg du CRSNG
获得 NSERC Herzberg Medal / Nominé pour la Médaille Herzberg du CRSNG 提名
  • 批准号:
    522548-2019
  • 财政年份:
    2021
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Gerhard Herzberg Canada Gold Medal for Science and Engineering
"Follow the Water": Controls on the Distribution and Preservation of Habitability from Water-Rock Interactions in the Earth's Deep Crust
“追随水流”:地壳深处水-岩相互作用对宜居性分布和保存的控制
  • 批准号:
    RGPIN-2018-06149
  • 财政年份:
    2021
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Discovery Grants Program - Individual
"Follow the Water": Controls on the Distribution and Preservation of Habitability from Water-Rock Interactions in the Earth's Deep Crust
“追随水流”:地壳深处水-岩相互作用对宜居性分布和保存的控制
  • 批准号:
    RGPIN-2018-06149
  • 财政年份:
    2020
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Discovery Grants Program - Individual
Canada Research Chair in Isotope Geochemistry of the Earth and the Environment
加拿大地球与环境同位素地球化学研究主席
  • 批准号:
    1000229214-2013
  • 财政年份:
    2020
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Canada Research Chairs
Nominated for the NSERC Herzberg Medal / Nominé pour la Médaille Herzberg du CRSNG
获得 NSERC Herzberg Medal / Nominé pour la Médaille Herzberg du CRSNG 提名
  • 批准号:
    522548-2019
  • 财政年份:
    2020
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Gerhard Herzberg Canada Gold Medal for Science and Engineering
"Follow the Water": Controls on the Distribution and Preservation of Habitability from Water-Rock Interactions in the Earth's Deep Crust
“追随水流”:地壳深处水-岩相互作用对宜居性分布和保存的控制
  • 批准号:
    RGPIN-2018-06149
  • 财政年份:
    2019
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Discovery Grants Program - Individual
Canada Research Chair in Isotope Geochemistry of the Earth and the Environment
加拿大地球与环境同位素地球化学研究主席
  • 批准号:
    1000229214-2013
  • 财政年份:
    2019
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Canada Research Chairs
Nominated for the NSERC Herzberg Medal / Nominé pour la Médaille Herzberg du CRSNG
获得 NSERC Herzberg Medal / Nominé pour la Médaille Herzberg du CRSNG 提名
  • 批准号:
    522548-2019
  • 财政年份:
    2019
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Gerhard Herzberg Canada Gold Medal for Science and Engineering
Canada Research Chair in Isotope Geochemistry of the Earth and the Environment
加拿大地球与环境同位素地球化学研究主席
  • 批准号:
    1000229214-2013
  • 财政年份:
    2018
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Canada Research Chairs
"Follow the Water": Controls on the Distribution and Preservation of Habitability from Water-Rock Interactions in the Earth's Deep Crust
“追随水流”:地壳深处水-岩相互作用对宜居性分布和保存的控制
  • 批准号:
    RGPIN-2018-06149
  • 财政年份:
    2018
  • 资助金额:
    $ 6.85万
  • 项目类别:
    Discovery Grants Program - Individual

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