Formation and impact histories of the Solar System and planets from chemical and isotopic investigations of planetary materials

通过行星材料的化学和同位素研究,了解太阳系和行星的形成和撞击历史

基本信息

  • 批准号:
    RGPIN-2014-06310
  • 负责人:
  • 金额:
    $ 2.55万
  • 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:
    2017
  • 资助国家:
    加拿大
  • 起止时间:
    2017-01-01 至 2018-12-31
  • 项目状态:
    已结题

项目摘要

The long-term scope of my research program is to understand the origin of the Solar System and how planets formed and evolved throughout time. Among these key processes, I am particularly interested in understanding what stellar sources of elements contributed to the Solar System, deciphering the timescales and chemical reservoirs for planetary formation and evolution, and the mechanisms responsible for chemical and isotopic changes in irradiated or shocked planetary materials. This cosmic fingerprinting will enable us to build models to identify the building blocks of terrestrial planets and shape scenarios for their early evolution. Another important theme of my research is to understand the consequences of impacts on planetary surfaces such as those of asteroids, the Moon, Mars, and Earth. To achieve these goals, I will study extra-terrestrial materials such as meteorites, samples brought back from Apollo space missions, and rocks and associated ore deposits from selected terrestrial impact craters.The three planned research themes in my program and their key objectives include:1. Origins of the Solar System and planets: with high-precision mass spectrometry, we can detect variations in the relative atomic abundances of elements in planetary materials. It is of major importance to understand the origin of isotopic heterogeneities in the solar System and trace the nuclear sources of elements that contributed to the molecular cloud, understand their mode and timing of incorporation within the solar nebula, and their distribution throughout the protoplanetary disk. Another important aspect of this theme is to monitor the mass-fractionation and irradiation effects by cosmic rays that affect the isotopic compositions of planetary materials and the subsequent interpretation. 2. Chronology and reservoirs of planetary formation: we can decipher a high-resolution chronology of planetary processes such as condensation (from gas to the first solids), accretion (how the planets grew) and differentiation (how they evolve) in the inner Solar System using the high-resolution U-Pb radiogenic isotope dating system in pristine planetary materials. Meteorites are samples from different locations of the protoplanetary disk exposing variable chemical conditions. In particular, Sm-Nd and Lu-Hf compositions of reduced materials will provide new clues for understanding the processes and reservoirs of planetary formation.3. Impacts in the Solar System: there is widespread evidence of scars left by planetary impacts on the surface of terrestrial planets, asteroids, and Solar System satellites. In the search for extra-terrestrial life, and of new mineralization, it is important to characterize the source and volume of delivered materials, how impact affected planetary surfaces, and understand the distribution through time of these events and the production of ore deposits in some cases. We can develop new models to explain the delivery of materials to the inner and outer Solar System with a better comparative chronology and inter-disciplinary approach of shocked planetary materials.Answering the fundamental questions about the origin of the Solar System and conditions for life to develop in our planetary system is of major interest for humans to understand our environment, the chemical and physical conditions to build habitable planets, and to shape the future of space exploration. The proposed research will be carried out in collaboration with other faculty members at Western and with laboratories across Canada will create a comprehensive environment for training high-qualified students in state-of-the-art facilities dedicated to excellence in geochemical research.
我的研究计划的长期范围是了解太阳系的起源以及行星如何形成和演变。在这些关键过程中,我特别感兴趣的是了解太阳系中的恒星元素来源,破译行星形成和演化的时间尺度和化学库,以及负责辐照或冲击行星材料中化学和同位素变化的机制。这种宇宙指纹将使我们能够建立模型来识别类地行星的构建模块,并为它们的早期演化塑造场景。我研究的另一个重要主题是了解行星表面撞击的后果,如小行星,月球,火星和地球。为了实现这些目标,我将研究地外物质,如陨石,从阿波罗太空任务带回的样品,以及岩石和伴生矿床从选定的陆地撞击坑。太阳系和行星的起源:利用高精度质谱仪,我们可以检测行星材料中元素相对原子丰度的变化。这是非常重要的,以了解在太阳系中的同位素不均匀性的起源和跟踪的元素,有助于分子云的核来源,了解他们的模式和时间的太阳星云内的合并,以及他们在整个原行星盘的分布。这一主题的另一个重要方面是监测影响行星物质同位素组成的宇宙射线的质量分馏和辐照效应以及随后的解释。2.行星形成的年代学和储存库:我们可以使用原始行星材料中的高分辨率U-Pb放射性同位素测年系统,破译内太阳系中行星过程的高分辨率年代学,如冷凝(从气体到第一个固体),吸积(行星如何生长)和分化(它们如何演变)。陨石是来自原行星盘不同位置的样本,暴露出不同的化学条件。特别是Sm-Nd和Lu-Hf还原物质的组成将为了解行星形成过程和储集层提供新的线索.对太阳系的影响:有广泛的证据表明,行星撞击在类地行星、小行星和太阳系卫星的表面上留下了疤痕。在寻找地外生命和新的成矿作用时,必须确定所提供物质的来源和数量,撞击如何影响行星表面,并了解这些事件在时间上的分布情况,以及在某些情况下矿床的产生情况。我们可以开发新的模型来解释物质向太阳系内外的输送,并对冲击行星物质进行更好的比较年表和跨学科方法。揭示有关太阳系起源和行星系中生命发展条件的基本问题对人类了解我们的环境,建立可居住行星的化学和物理条件,并塑造太空探索的未来。拟议的研究将与西部大学的其他教师合作进行,并与加拿大各地的实验室合作,为培养高素质的学生创造一个全面的环境,这些学生将在最先进的设施中致力于卓越的地球化学研究。

项目成果

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Bouvier, Audrey其他文献

The Lu-Hf and Sm-Nd isotopic composition of CHUR: Constraints from unequilibrated chondrites and implications for the bulk composition of terrestrial planets
  • DOI:
    10.1016/j.epsl.2008.06.010
  • 发表时间:
    2008-08-30
  • 期刊:
  • 影响因子:
    5.3
  • 作者:
    Bouvier, Audrey;Vervoort, Jeffrey D.;Patchett, P. Jonathan
  • 通讯作者:
    Patchett, P. Jonathan
The Meteoritical Bulletin, No. 104
  • DOI:
    10.1111/maps.12930
  • 发表时间:
    2017-10-01
  • 期刊:
  • 影响因子:
    2.2
  • 作者:
    Bouvier, Audrey;Gattacceca, Jerome;Metzler, Knut
  • 通讯作者:
    Metzler, Knut
Magnesium isotopic fractionation in chondrules from the Murchison and Murray CM2 carbonaceous chondrites
  • DOI:
    10.1111/maps.12059
  • 发表时间:
    2013-03-01
  • 期刊:
  • 影响因子:
    2.2
  • 作者:
    Bouvier, Audrey;Wadhwa, Meenakshi;Grossman, Lawrence
  • 通讯作者:
    Grossman, Lawrence
New constraints on early Solar System chronology from Al-Mg and U-Pb isotope systematics in the unique basaltic achondrite Northwest Africa 2976
  • DOI:
    10.1016/j.gca.2011.06.033
  • 发表时间:
    2011-09-15
  • 期刊:
  • 影响因子:
    5
  • 作者:
    Bouvier, Audrey;Spivak-Birndorf, Lev J.;Wadhwa, Meenakshi
  • 通讯作者:
    Wadhwa, Meenakshi
Pb-Pb dating constraints on the accretion and cooling history of chondrites
  • DOI:
    10.1016/j.gca.2006.12.005
  • 发表时间:
    2007-03-15
  • 期刊:
  • 影响因子:
    5
  • 作者:
    Bouvier, Audrey;Blichert-Toft, Janne;Albarede, Francis
  • 通讯作者:
    Albarede, Francis

Bouvier, Audrey的其他文献

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{{ truncateString('Bouvier, Audrey', 18)}}的其他基金

Formation and impact histories of the Solar System and planets from chemical and isotopic investigations of planetary materials
通过行星材料的化学和同位素研究,了解太阳系和行星的形成和撞击历史
  • 批准号:
    RGPIN-2014-06310
  • 财政年份:
    2019
  • 资助金额:
    $ 2.55万
  • 项目类别:
    Discovery Grants Program - Individual
Planetary Materials
行星材料
  • 批准号:
    1000229061-2013
  • 财政年份:
    2018
  • 资助金额:
    $ 2.55万
  • 项目类别:
    Canada Research Chairs
Formation and impact histories of the Solar System and planets from chemical and isotopic investigations of planetary materials
通过行星材料的化学和同位素研究,了解太阳系和行星的形成和撞击历史
  • 批准号:
    RGPIN-2014-06310
  • 财政年份:
    2018
  • 资助金额:
    $ 2.55万
  • 项目类别:
    Discovery Grants Program - Individual
Geochemistry and Geochronology of Scheelites as constraints on the formation of gold ore deposits at Timmins West mine, Ontario
白钨矿的地球化学和地质年代学对安大略省蒂明斯西矿金矿床形成的限制
  • 批准号:
    517420-2017
  • 财政年份:
    2017
  • 资助金额:
    $ 2.55万
  • 项目类别:
    Engage Grants Program
Planetary Materials
行星材料
  • 批准号:
    1000229061-2013
  • 财政年份:
    2017
  • 资助金额:
    $ 2.55万
  • 项目类别:
    Canada Research Chairs
Lutetium-Hafnium chronology of scheelites from Lake Shore Gold Corp's mine deposits
Lake Shore Gold Corp 矿床中白钨矿的镥铪年代学
  • 批准号:
    499516-2016
  • 财政年份:
    2016
  • 资助金额:
    $ 2.55万
  • 项目类别:
    Connect Grants Level 1
Planetary Materials
行星材料
  • 批准号:
    1000229061-2013
  • 财政年份:
    2016
  • 资助金额:
    $ 2.55万
  • 项目类别:
    Canada Research Chairs
Isotopic tracers for sulfide formation applied to offset dykes of the Sudbury basin, Ontario
用于硫化物形成的同位素示踪剂应用于安大略省萨德伯里盆地的偏移堤坝
  • 批准号:
    498408-2016
  • 财政年份:
    2016
  • 资助金额:
    $ 2.55万
  • 项目类别:
    Engage Grants Program
Formation and impact histories of the Solar System and planets from chemical and isotopic investigations of planetary materials
通过行星材料的化学和同位素研究,了解太阳系和行星的形成和撞击历史
  • 批准号:
    RGPIN-2014-06310
  • 财政年份:
    2016
  • 资助金额:
    $ 2.55万
  • 项目类别:
    Discovery Grants Program - Individual
Planetary Materials
行星材料
  • 批准号:
    1229061-2013
  • 财政年份:
    2015
  • 资助金额:
    $ 2.55万
  • 项目类别:
    Canada Research Chairs

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Formation and impact histories of the Solar System and planets from chemical and isotopic investigations of planetary materials
通过行星材料的化学和同位素研究,了解太阳系和行星的形成和撞击历史
  • 批准号:
    RGPIN-2014-06310
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    2019
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    $ 2.55万
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Formation and impact histories of the Solar System and planets from chemical and isotopic investigations of planetary materials
通过行星材料的化学和同位素研究,了解太阳系和行星的形成和撞击历史
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Formation and impact histories of the Solar System and planets from chemical and isotopic investigations of planetary materials
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