The Volatile Legacy of the Early Earth

早期地球的不稳定遗产

基本信息

  • 批准号:
    NE/M000400/1
  • 负责人:
  • 金额:
    $ 12.59万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Research Grant
  • 财政年份:
    2014
  • 资助国家:
    英国
  • 起止时间:
    2014 至 无数据
  • 项目状态:
    已结题

项目摘要

In response to the NERC Theme Action (TA) we propose a consortium among scientists at seven UK institutions and with three international partners centred on 'The Volatile Legacy of the Early Earth'. Earth's habitability is strongly linked to its inventory and cycling of volatiles, which today are coupled to plate tectonics, but we still have little notion as to how our planet found itself in this near-ideal 'Goldilocks' state where the volatile mix is 'just right'. Was it simply a matter of being at the right solar distance with the right supply of volatiles? Or were the details of the chemistry and dynamics of early accretion and differentiation crucial to the eventual outcome? Such questions are of critical importance for understanding our own planets development, and given the burgeoning field of exo-planet discovery, they gain extra piquancy for gauging the probability of life elsewhere. In this proposal we investigate how the early evolution of volatiles on Earth set the stage for habitability.Planets grow by collisions and these violent events may lead to loss of the volatiles carried within the impacting bodies. We will explore with numerical modeling the conditions under which the volatiles are retained or lost in planetesimal collisions. We will also assess the likelihood that volatiles were delivered to Earth 'late', namely after the maelstrom of major collisions was finished and the planet was largely constructed, by studying the element S and notably its geochemical twin, Se. We will constrain the process of loss to the core and the isotopic signature imparted by this process. We will further use isotopic measurements as finger-prints of the origin of modern Se, and will find out whether it corresponds to any known meteorite type, or if it was possibly delivered by comets. The Moon provides further clues to the origin of the Earth, and interrogating the significance of the recently refined volatile inventory of the Moon requires new experiments under appropriate conditions.The energy generated by planetary collisions inevitably results in large-scale melting. The solubility and chemical nature of volatiles within a magma ocean controls whether or not gases are carried into the interior of the planet or left in the atmosphere. Volatiles retained in the magma ocean may become part of a deep mantle volatile cycle or become permanently sequestered in deep reservoirs. We will redress this issue with a series of experiments that simulate conditions of the early magma ocean. We will further investigate the stability of phases in the lower mantle that can potentially hold volatile elements if delivered to great depths by solubility in a convecting magma ocean. Using seismic and modeling techniques, we will assess if any remnants of such stored volatiles are currently 'visible' in the deepest mantle. The influence of the core on volatile budgets is potentially great because of its size, but volatile solubility is poorly known. We will examine the solubility of hydrogen, carbon and nitrogen in liquid metal at high pressures and temperatures.In this consortium we will also create a cohort of PhD students and supervisors who work as part of a large team to piece together the evidence for Earth's volatile evolution using inclusions trapped in diamonds. These may be the key 'space-time' capsules that can link experimental and theoretical work on early Earth evolution to present-day volatile budgets and fluxes in the deep Earth. The questions raised in this proposal are complex and require a wide range of information in order to provide meaningful answers. It is our goal to establish a much-improved understanding of how Earth initially became a habitable planet, and to build a solid foundation on which further UK research can continue to lead the way in this exciting field. This will be the ultimate legacy of this consortium, and through links to other consortia, of the entire Theme Action.
为了响应NERC主题行动(TA),我们提议由七个英国机构的科学家和三个国际合作伙伴组成一个联盟,以“早期地球的不稳定遗产”为中心。地球的可居住性与其挥发物的库存和循环密切相关,今天与板块构造有关,但我们仍然不知道我们的星球是如何发现自己处于这种近乎理想的“金发姑娘”状态的,在这种状态下,挥发物的混合物“刚刚好”。这仅仅是在合适的太阳距离和合适的挥发物供应的问题吗?或者,早期吸积和分化的化学和动力学细节对最终结果至关重要?这些问题对于了解我们自己的行星的发展至关重要,并且考虑到外行星发现领域的蓬勃发展,它们在衡量其他地方生命的可能性方面获得了额外的刺激。在这个提议中,我们研究了地球上挥发物的早期进化如何为宜居性奠定基础。行星在碰撞中成长,这些剧烈的事件可能导致撞击体中携带的挥发物的损失。我们将用数值模拟探讨挥发物在星子碰撞中保留或丢失的条件。我们还将通过研究元素S,尤其是它的地球化学孪生体Se,来评估挥发物“晚”到达地球的可能性,即在大碰撞的大漩涡结束后,地球基本上形成了。我们将把损失过程限制在岩心上,并将此过程所赋予的同位素特征加以限制。我们将进一步使用同位素测量作为现代硒起源的指纹,并将发现它是否与任何已知的陨石类型相对应,或者它是否可能是由彗星带来的。月球为地球的起源提供了进一步的线索,而要探究最近提炼的月球挥发性物质的重要性,需要在适当的条件下进行新的实验。行星碰撞产生的能量不可避免地导致大规模的熔化。岩浆海洋中挥发物的溶解度和化学性质决定了气体是被带入行星内部还是留在大气中。保留在岩浆海洋中的挥发物可能成为深部地幔挥发物循环的一部分,或者永久地被隔离在深部储层中。我们将通过一系列模拟早期岩浆海洋条件的实验来解决这个问题。我们将进一步研究下地幔中相的稳定性,如果在对流岩浆海洋中溶解,这些相可能会将挥发性元素输送到很深的地方。利用地震和建模技术,我们将评估这些储存的挥发物是否有任何残留物目前在最深处的地幔中“可见”。由于岩心的大小,其对挥发性预算的影响可能很大,但对挥发性溶解度知之甚少。我们将研究氢、碳和氮在高压和高温下在液态金属中的溶解度。在这个联盟中,我们还将培养一批博士生和导师,他们将作为一个大团队的一部分,利用钻石中的内含物拼凑出地球挥发性演化的证据。这些可能是关键的“时空”胶囊,可以将早期地球演化的实验和理论工作与当今地球深处不稳定的预算和通量联系起来。本建议提出的问题很复杂,需要广泛的资料才能提供有意义的答案。我们的目标是建立对地球最初如何成为宜居行星的更好理解,并建立一个坚实的基础,使英国的进一步研究能够继续在这个令人兴奋的领域处于领先地位。这将是这个联盟的最终遗产,并通过与其他联盟的联系,整个主题行动。

项目成果

期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Global scale modeling of melting and isotopic evolution of Earth's mantle
地幔熔化和同位素演化的全球尺度模拟
  • DOI:
    10.5194/gmdd-8-9553-2015
  • 发表时间:
    2015
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Van Heck H
  • 通讯作者:
    Van Heck H
Constraining the global water budget: Understanding the deep water cycle using 3D mantle convection models
限制全球水预算:使用 3D 地幔对流模型了解深水循环
  • DOI:
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Price M
  • 通讯作者:
    Price M
Probing Seismically Melting Induced Mantle Heterogeneities in Thermal-chemical Convection Models
在热化学对流模型中探测地震熔融引起的地幔不均匀性
  • DOI:
  • 发表时间:
    2015
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Van Heck, H
  • 通讯作者:
    Van Heck, H
Investigating melting induced mantle heterogeneities in plate driven mantle convection models
研究板块驱动地幔对流模型中熔融引起的地幔异质性
  • DOI:
  • 发表时间:
    2017
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Price M
  • 通讯作者:
    Price M
Global-scale modelling of melting and isotopic evolution of Earth's mantle: melting modules for TERRA
全球尺度地幔熔化和同位素演化建模:TERRA 熔化模块
{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

J Davies其他文献

Active Versus Passive Fault Tolerant Control of a High Redundancy Actuator
高冗余执行器的主动与被动容错控制
  • DOI:
  • 发表时间:
    2009
  • 期刊:
  • 影响因子:
    0
  • 作者:
    J Davies
  • 通讯作者:
    J Davies
The Outcome of an Office Based Surgical Treatment for Stress Urinary Incontinence Using an Adjustable Single Incision Sling
  • DOI:
    10.1016/j.jmig.2016.08.154
  • 发表时间:
    2016-11-01
  • 期刊:
  • 影响因子:
  • 作者:
    N Bhal;J Davies;J Jones;R Morris;P Bhal
  • 通讯作者:
    P Bhal
Screening for gastric carcinoma using <em>H. pylori</em> serology
  • DOI:
    10.1016/s0016-5085(98)82416-5
  • 发表时间:
    1998-04-15
  • 期刊:
  • 影响因子:
  • 作者:
    S Everett;J Davies;M Wilcox;H Sue-Ling;D Johnston;A Axon
  • 通讯作者:
    A Axon
Arterialisation of coronary veins for the treatment of ischemic heart disease: does it really work?

J Davies的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('J Davies', 18)}}的其他基金

Feedbacks between mineral reactions and mantle convection
矿物反应与地幔对流之间的反馈
  • 批准号:
    NE/V018221/1
  • 财政年份:
    2022
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Research Grant
Mantle Circulation Constrained (MC2): A multidisciplinary 4D Earth framework for understanding mantle upwellings
地幔环流约束 (MC2):用于理解地幔上升流的多学科 4D 地球框架
  • 批准号:
    NE/T012633/1
  • 财政年份:
    2020
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Research Grant
Mantle volatiles: processes, reservoirs and fluxes
地幔挥发物:过程、储层和通量
  • 批准号:
    NE/M000397/1
  • 财政年份:
    2014
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Research Grant
Superplumes, superpiles or superpuddings? Understanding the thermochemical dynamics of the mantle with waveform seismology
超级羽、超级桩还是超级布丁?
  • 批准号:
    NE/K004824/1
  • 财政年份:
    2013
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Research Grant
Understanding how the mantle transition-zone 'valve' controls slab fate
了解地幔过渡区“阀门”如何控制板块命运
  • 批准号:
    NE/I024429/1
  • 财政年份:
    2012
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Research Grant
Dynamic Earth Models
动态地球模型
  • 批准号:
    NE/J020915/1
  • 财政年份:
    2012
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Research Grant
Testing mantle dynamics : Constraining high resolution numerical spherical convection models with geochemistry and geophysics
测试地幔动力学:用地球化学和地球物理学约束高分辨率数值球形对流模型
  • 批准号:
    NE/H006559/1
  • 财政年份:
    2011
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Research Grant

相似海外基金

Elucidating the legacy of early parent-child relationship: A new developmental synthesis of temperament, internal representation, and behavior
阐明早期亲子关系的遗产:气质、内部表征和行为的新发展综合
  • 批准号:
    10731119
  • 财政年份:
    2023
  • 资助金额:
    $ 12.59万
  • 项目类别:
Elucidating the legacy of early parent-child relationship: A new developmental synthesis of temperament, internal representation, and behavior
阐明早期亲子关系的遗产:气质、内部表征和行为的新发展综合
  • 批准号:
    10607184
  • 财政年份:
    2022
  • 资助金额:
    $ 12.59万
  • 项目类别:
Collaborative Research: Using herbivore kairomones to assess short-term and legacy risk responses in the early life stages of long-lived woody plants
合作研究:利用食草动物利好素评估长寿木本植物生命早期阶段的短期和遗留风险反应
  • 批准号:
    2117369
  • 财政年份:
    2021
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Standard Grant
Collaborative Research: Using herbivore kairomones to assess short-term and legacy risk responses in the early life stages of long-lived woody plants
合作研究:利用食草动物利好素评估长寿木本植物生命早期阶段的短期和遗留风险反应
  • 批准号:
    2117367
  • 财政年份:
    2021
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Standard Grant
Collaborative Research: Using herbivore kairomones to assess short-term and legacy risk responses in the early life stages of long-lived woody plants
合作研究:利用食草动物利好素评估长寿木本植物生命早期阶段的短期和遗留风险反应
  • 批准号:
    2117368
  • 财政年份:
    2021
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Standard Grant
Elucidating the legacy of early parent-child attachment: A new developmental synthesis of temperament, internal representation, and behavior
阐明早期亲子依恋的遗产:气质、内部表征和行为的新发展综合
  • 批准号:
    9276307
  • 财政年份:
    2017
  • 资助金额:
    $ 12.59万
  • 项目类别:
Elucidating the legacy of early parent-child attachment: A new developmental synthesis of temperament, internal representation, and behavior
阐明早期亲子依恋的遗产:气质、内部表征和行为的新发展综合
  • 批准号:
    10215571
  • 财政年份:
    2017
  • 资助金额:
    $ 12.59万
  • 项目类别:
The Volatile Legacy of the Early Earth
早期地球的不稳定遗产
  • 批准号:
    NE/M000419/1
  • 财政年份:
    2014
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Research Grant
The Volatile Legacy of the Early Earth
早期地球的不稳定遗产
  • 批准号:
    NE/M000125/1
  • 财政年份:
    2014
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Research Grant
The Volatile Legacy of the Early Earth
早期地球的不稳定遗产
  • 批准号:
    NE/M000346/1
  • 财政年份:
    2014
  • 资助金额:
    $ 12.59万
  • 项目类别:
    Research Grant
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了