Collaborative Research: Serpentinization and cycling of B, Nd and Sr in submarine hydrothermal systems: An experimental study on the effects of pH and temperature

合作研究:海底热液系统中 B、Nd 和 Sr 的蛇纹石化和循环:pH 和温度影响的实验研究

基本信息

项目摘要

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Hydrothermally altered ocean crust provides a record of heat and mass transfer between seawater and the earth's mantle that takes place during hydrothermal circulation at mid ocean ridges and subduction zones. Hydrothermal vent systems that generate the mineral serpentine are linked to alkaline fluids enriched in organics and are central to generating the energy supply for microbial life at the seafloor. This research uses boron, strontium, and neodymium elemental concentrations as well as boron isotope fractionation to examine the role of water-rock reaction in the conversion of peridotites and other ultramafic rocks common on the seafloor and in the lower crust to serpentine and other minerals. The work involves novel, controlled, hydrothermal, laboratory experiments that examine the pH, temperature and mineral composition controls on boron isotope fractionation and combined B-Sr-Nd mobility and rock-fluid exchange. Targeted geochemical elements were picked because they are recorders of temperature and fluid pH conditions and allow application of the results of the experiments to fossil hydrothermal systems and associated ore deposits. Furthermore, the measurements will constrain the effects of low-temperature serpentinization on the efficiency of elemental recycling across volcanic arcs and enhance our understanding of geochemical fluxes from subducting slabs which impact island arc volcanics. Broader impacts of the work are support of two early career researchers, promotion of a new collaboration, support of students, international collaboration, and support of an institution in an EPSCoR state
该奖项是根据2009年美国复苏和再投资法案(公法111-5)资助的。热液蚀变的洋壳提供了在大洋中脊和俯冲带的热液循环期间发生的海水和地幔之间的热量和质量转移的记录。产生蛇纹石矿物的热液喷口系统与富含有机物的碱性流体有关,是海底微生物生命产生能量供应的核心。本研究使用硼,锶,钕元素的浓度以及硼同位素分馏研究的作用,在转换的橄榄岩和其他超镁铁岩常见的海底和下地壳的蛇纹石和其他矿物的水岩反应。这项工作涉及新颖的,受控的,热液,实验室实验,研究pH值,温度和矿物成分控制硼同位素分馏和组合的B-Sr-Nd流动性和岩石流体交换。选择目标地球化学元素是因为它们是温度和流体pH值条件的记录器,并允许将实验结果应用于化石热液系统和相关矿床。此外,这些测量将限制低温蛇纹化对火山弧元素循环效率的影响,并增强我们对俯冲板块影响岛弧火山岩的地球化学通量的理解。工作的更广泛的影响是两个早期职业研究人员的支持,促进新的合作,学生的支持,国际合作,并在EPSCoR国家机构的支持

项目成果

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Michael Bizimis其他文献

Geochemical benchmarks in the Phanerozoic LIPs constrained from well-cores in the Deccan Volcanic Province, India
印度德干火山省显生宙 LIP 的地球化学基准受井芯限制
  • DOI:
    10.1016/j.lithos.2023.107403
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    3.5
  • 作者:
    Tarun C. Khanna;Prachiti P. Kanakdande;Michael Bizimis;Kusumita Arora
  • 通讯作者:
    Kusumita Arora
Recycled depleted lithosphere in the enriched mantle?
  • DOI:
    10.1016/j.gca.2006.06.1021
  • 发表时间:
    2006-08-01
  • 期刊:
  • 影响因子:
  • 作者:
    Vincent J.M. Salters;Michael Bizimis
  • 通讯作者:
    Michael Bizimis
The brevity of carbonatite sources in the mantle: evidence from Hf isotopes
  • DOI:
    10.1007/s00410-003-0452-3
  • 发表时间:
    2003-06-01
  • 期刊:
  • 影响因子:
    3.700
  • 作者:
    Michael Bizimis;Vincent J. M. Salters;J. Barry Dawson
  • 通讯作者:
    J. Barry Dawson

Michael Bizimis的其他文献

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{{ truncateString('Michael Bizimis', 18)}}的其他基金

Collaborative Research: US GEOTRACES GP17-ANT: Constraining the Neodymium (Nd) Isotope and Rare Earth Element Cycles near the Amundsen Sea Continental Margin
合作研究:美国 GEOTRACES GP17-ANT:限制阿蒙森海大陆边缘附近的钕 (Nd) 同位素和稀土元素循环
  • 批准号:
    2049310
  • 财政年份:
    2021
  • 资助金额:
    $ 17.4万
  • 项目类别:
    Standard Grant
Collaborative Research: Integrating Eocene Shark Paleoecology and Climate Modeling to reveal Southern Ocean Circulation and Antarctic Glaciation
合作研究:整合始新世鲨鱼古生态学和气候模型来揭示南大洋环流和南极冰川作用
  • 批准号:
    1842176
  • 财政年份:
    2019
  • 资助金额:
    $ 17.4万
  • 项目类别:
    Standard Grant
Collaborative Research: Organic and Inorganic Geochemical Investigation of Hydrologic Change in East Antarctica in the 4 Million Years Before Full Glaciation
合作研究:全冰期前400万年南极洲东部水文变化的有机和无机地球化学研究
  • 批准号:
    1908399
  • 财政年份:
    2019
  • 资助金额:
    $ 17.4万
  • 项目类别:
    Standard Grant
Collaborative Research: Water Concentration and Distribution in the Oceanic Lithosphere
合作研究:海洋岩石圈中的水浓度和分布
  • 批准号:
    1624315
  • 财政年份:
    2016
  • 资助金额:
    $ 17.4万
  • 项目类别:
    Standard Grant
Collaborative Research: PGE and Pb Systematics in Altered Abyssal Peridotites: Integrating Experiments with Natural Samples
合作研究:蚀变深渊橄榄岩中的 PGE 和 Pb 系统学:将实验与自然样品相结合
  • 批准号:
    1347890
  • 财政年份:
    2014
  • 资助金额:
    $ 17.4万
  • 项目类别:
    Standard Grant
Collaborative research: Water stratigraphy of the oceanic lithosphere using mantle xenoliths from Hawaii
合作研究:利用夏威夷地幔捕虏体进行海洋岩石圈水地层学
  • 批准号:
    1129280
  • 财政年份:
    2011
  • 资助金额:
    $ 17.4万
  • 项目类别:
    Standard Grant
Constraints on the Hawaiian Swell and Plume-lithosphere Interaction from Kaua`i Mantle Xenoliths
可爱岛地幔包体对夏威夷涌浪和地幔柱-岩石圈相互作用的限制
  • 批准号:
    0852488
  • 财政年份:
    2008
  • 资助金额:
    $ 17.4万
  • 项目类别:
    Continuing Grant
Constraints on the Hawaiian Swell and Plume-lithosphere Interaction from Kaua`i Mantle Xenoliths
可爱岛地幔包体对夏威夷涌浪和地幔柱-岩石圈相互作用的限制
  • 批准号:
    0622827
  • 财政年份:
    2006
  • 资助金额:
    $ 17.4万
  • 项目类别:
    Continuing Grant

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Collaborative Research: Mantle metasomatism during serpentinization in subduction zones: Insights from in-situ boron isotopes
合作研究:俯冲带蛇纹石化过程中的地幔交代作用:来自原位硼同位素的见解
  • 批准号:
    2150618
  • 财政年份:
    2021
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    $ 17.4万
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Collaborative Research: Mantle metasomatism during serpentinization in subduction zones: Insights from in-situ boron isotopes
合作研究:俯冲带蛇纹石化过程中的地幔交代作用:来自原位硼同位素的见解
  • 批准号:
    1951166
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    2020
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    $ 17.4万
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Collaborative Research: Mantle metasomatism during serpentinization in subduction zones: Insights from in-situ boron isotopes
合作研究:俯冲带蛇纹石化过程中的地幔交代作用:来自原位硼同位素的见解
  • 批准号:
    1951172
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Collaborative Research: Serpentinization of oceanic crust: Integrated modeling of deformation, fracture, fluid flow and heat transfer
合作研究:洋壳蛇纹石化:变形、断裂、流体流动和传热的综合建模
  • 批准号:
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  • 批准号:
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