CSEDI Collaborative Research: Application of siderophile elements to mantle geodynamics
CSEDI合作研究:亲铁元素在地幔地球动力学中的应用
基本信息
- 批准号:1160728
- 负责人:
- 金额:$ 16.46万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-05-15 至 2014-04-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
We propose to conduct collaborative, synergistic research combining observations of siderophile element compositions with geodynamic modeling to study the evolution of elemental and isotopic heterogeneities in the mantle. Siderophile elements are those with a preference to enter metal rather than silicates, and are thus, elements that are largely concentrated in planetary cores. The objectives of this study will be to develop a better understanding of the global processes that led to the establishment of siderophile element abundances in the mantle, assess the extent of and possible mechanisms for the long-term preservation of the siderophile elemental and isotopic heterogeneities observed in the terrestrial rock record, and combine this information with geodynamic modeling to provide new insights to develop a better understanding of the formation and early chemical evolution of the Earth. In part, this project will be accomplished via study of the petrologic and chronologic extents of 182W isotopic anomalies in terrestrial systems using a newly-developed, high precision mass spectrometry technique. Ancient rocks, such as komatiites for which we have already identified isotopic anomalies, as well as modern rocks, such as MORB, oceanic peridotites, and ocean island basalts, will be examined as part of this task. Where necessary, complementary concentration and isotopic data for other elements, such as Os and Nd, will be generated. To better understand the causes and implications of the isotopic systematics revealed, we will test, via different geodynamic models, mechanisms for the formation and dispersal of the geochemical reservoirs with the appropriate characteristics. By tracking hafnium and tungsten in models of a range of possible early Earth states, then comparing model results with observations, we will be able to rule out some early Earth formation models and also better understand mantle mixing over the evolution of the Earth.
我们建议进行合作,协同研究相结合的亲铁元素组成的地球动力学模拟的观察,研究地幔中的元素和同位素的不均匀性的演变。亲铁元素是那些倾向于进入金属而不是硅酸盐的元素,因此是主要集中在行星核心的元素。这项研究的目的是更好地了解导致地幔中亲铁元素丰度确定的全球过程,评估在陆地岩石记录中观察到的亲铁元素和同位素不均匀性长期保存的程度和可能机制,并将这些信息与地球动力学建模相结合,以提供新的见解,从而更好地了解地球的形成和早期化学演化。部分地,该项目将通过使用新开发的高精度质谱技术研究陆地系统中182 W同位素异常的岩石学和年代学范围来完成。作为这项任务的一部分,将对古代岩石,如我们已经确定同位素异常的科马提岩,以及现代岩石,如MORB,大洋橄榄岩和洋岛玄武岩进行检查。必要时,还将生成其他元素(如Os和Nd)的补充浓度和同位素数据。为了更好地理解所揭示的同位素系统学的原因和含义,我们将通过不同的地球动力学模型来测试具有适当特征的地球化学储层的形成和分散机制。通过在一系列可能的早期地球状态的模型中跟踪铪和钨,然后将模型结果与观测结果进行比较,我们将能够排除一些早期地球形成模型,并更好地了解地球演化过程中的地幔混合。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
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 }}
Richard Walker其他文献
The Chaman and Paghman active faults, west of Kabul, Afghanistan: active tectonics, geomorphology, and evidence for rupture in the destructive 1505 earthquake
阿富汗喀布尔以西的查曼和帕格曼活动断层:活动构造、地貌以及 1505 年破坏性地震中断裂的证据
- DOI:
10.1016/j.jseaes.2023.105925 - 发表时间:
2023 - 期刊:
- 影响因子:3
- 作者:
Zakeria Shnizai;Richard Walker;Hiroyuki Tsutsumi - 通讯作者:
Hiroyuki Tsutsumi
Blended Problem-Based Learning: Designing Collaboration Opportunities for Unguided Group Research Through the Use of Web 2.0 Tools
基于问题的混合学习:通过使用 Web 2.0 工具为无指导的小组研究设计协作机会
- DOI:
- 发表时间:
2014 - 期刊:
- 影响因子:0
- 作者:
Richard Walker - 通讯作者:
Richard Walker
Genetic Redundancy in Evolving Populations of Simulated Robots
模拟机器人群体进化中的遗传冗余
- DOI:
- 发表时间:
2002 - 期刊:
- 影响因子:2.6
- 作者:
O. Miglino;Richard Walker - 通讯作者:
Richard Walker
Concordance between transrectal ultrasound guided biopsy results and radical prostatectomy final pathology: Are we getting better at predicting final pathology?
经直肠超声引导活检结果与根治性前列腺切除术最终病理学之间的一致性:我们在预测最终病理学方面是否做得更好?
- DOI:
- 发表时间:
2014 - 期刊:
- 影响因子:0
- 作者:
Richard Walker;U. Lindner;Alyssa S. Louis;Robin Kalnin;M. Ennis;Michael E. Nesbitt;T. H. van der Kwast;A. Finelli;N. Fleshner;A. Zlotta;M. Jewett;R. Hamilton;G. Kulkarni;J. Trachtenberg - 通讯作者:
J. Trachtenberg
Osuntokun Award Lecture 2021: Challenges of Measuring the Burden of Stroke in Africa.
2021 年 Osuntokun 奖讲座:衡量非洲中风负担的挑战。
- DOI:
- 发表时间:
2022 - 期刊:
- 影响因子:2.5
- 作者:
Richard Walker - 通讯作者:
Richard Walker
Richard Walker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('Richard Walker', 18)}}的其他基金
Spatiotemporal Variability of Tungsten-182 in the Hawaiian Plume
夏威夷羽流中钨 182 的时空变化
- 批准号:
2121979 - 财政年份:2021
- 资助金额:
$ 16.46万 - 项目类别:
Continuing Grant
Developing a novel approach for generating 3D deformation fields in order to probe the mechanics of earthquake ruptures
开发一种生成 3D 变形场的新方法,以探究地震破裂的机制
- 批准号:
NE/T01427X/1 - 财政年份:2020
- 资助金额:
$ 16.46万 - 项目类别:
Research Grant
Study of Mass Independent Isotopic Compositions of Ru and Mo in Early Earth Rocks
早期地球岩石中钌和钼的质量独立同位素组成研究
- 批准号:
2020029 - 财政年份:2020
- 资助金额:
$ 16.46万 - 项目类别:
Standard Grant
Acquisition of a State-of-the-Art Multi-Collector Inductively-Coupled Plasma Mass Spectrometer
购置最先进的多收集器电感耦合等离子体质谱仪
- 批准号:
1659023 - 财政年份:2017
- 资助金额:
$ 16.46万 - 项目类别:
Continuing Grant
Tungsten and Ruthenium Isotopic Study of the Chemical Evolution of Earth
地球化学演化的钨和钌同位素研究
- 批准号:
1624587 - 财政年份:2016
- 资助金额:
$ 16.46万 - 项目类别:
Continuing Grant
Application of Siderophile Elements to the Study of the Chemical Structure and Mixing History of the Oceanic Mantle
亲铁元素在大洋地幔化学结构和混合历史研究中的应用
- 批准号:
1423879 - 财政年份:2014
- 资助金额:
$ 16.46万 - 项目类别:
Continuing Grant
Acquisition of a State-of-the-Art Thermal Ionization Mass Spectrometer
购置最先进的热电离质谱仪
- 批准号:
1255787 - 财政年份:2013
- 资助金额:
$ 16.46万 - 项目类别:
Standard Grant
CSEDI Collaborative Research: Application of Siderophile Elements to Early Earth Processes and Mantle Mixing
CSEDI合作研究:亲铁元素在早期地球过程和地幔混合中的应用
- 批准号:
1265169 - 财政年份:2013
- 资助金额:
$ 16.46万 - 项目类别:
Continuing Grant
The timing and cause of mountain building in central Asia
中亚造山的时间和原因
- 批准号:
NE/J014141/1 - 财政年份:2012
- 资助金额:
$ 16.46万 - 项目类别:
Research Grant
Doctoral Dissertation Research: Contested Renewal: The Rebuilding of the South Bronx
博士论文研究:有争议的更新:南布朗克斯的重建
- 批准号:
1003827 - 财政年份:2010
- 资助金额:
$ 16.46万 - 项目类别:
Standard Grant
相似海外基金
Collaborative Research: CSEDI: Integrating Seismic Anisotropy, Mantle Flow, and Rock Deformation in Subduction Zone Settings
合作研究:CSEDI:在俯冲带环境中整合地震各向异性、地幔流和岩石变形
- 批准号:
2154072 - 财政年份:2022
- 资助金额:
$ 16.46万 - 项目类别:
Continuing Grant
Collaborative Research: CSEDI: Integrating Seismic Anisotropy, Mantle Flow, and Rock Deformation in Subduction Zone Settings
合作研究:CSEDI:在俯冲带环境中整合地震各向异性、地幔流和岩石变形
- 批准号:
2153688 - 财政年份:2022
- 资助金额:
$ 16.46万 - 项目类别:
Continuing Grant
Collaborative Research: CSEDI: Integrating Seismic Anisotropy, Mantle Flow, and Rock Deformation in Subduction Zone Settings
合作研究:CSEDI:在俯冲带环境中整合地震各向异性、地幔流和岩石变形
- 批准号:
2153910 - 财政年份:2022
- 资助金额:
$ 16.46万 - 项目类别:
Continuing Grant
CSEDI Collaborative Research: The nature and timing of Earth's accretion
CSEDI 合作研究:地球吸积的性质和时间
- 批准号:
2054884 - 财政年份:2021
- 资助金额:
$ 16.46万 - 项目类别:
Standard Grant
CSEDI Collaborative Research: The Origins and Implications of Inner Core Seismic Anisotropy
CSEDI合作研究:内核地震各向异性的起源和意义
- 批准号:
2054964 - 财政年份:2021
- 资助金额:
$ 16.46万 - 项目类别:
Continuing Grant
CSEDI Collaborative Research: Understanding of the effects of large planetesimal collisions on Hadean Earth mantle dynamics
CSEDI合作研究:了解大型星子碰撞对冥古宙地幔动力学的影响
- 批准号:
2102571 - 财政年份:2021
- 资助金额:
$ 16.46万 - 项目类别:
Standard Grant
CSEDI Collaborative Research: Understanding of the effects of large planetesimal collisions on Hadean Earth mantle dynamics
CSEDI合作研究:了解大型星子碰撞对冥古宙地幔动力学的影响
- 批准号:
2102777 - 财政年份:2021
- 资助金额:
$ 16.46万 - 项目类别:
Standard Grant
CSEDI Collaborative Research: The nature and timing of Earth's accretion
CSEDI 合作研究:地球吸积的性质和时间
- 批准号:
2054912 - 财政年份:2021
- 资助金额:
$ 16.46万 - 项目类别:
Standard Grant
CSEDI Collaborative Research: The nature and timing of Earth's accretion
CSEDI 合作研究:地球吸积的性质和时间
- 批准号:
2054876 - 财政年份:2021
- 资助金额:
$ 16.46万 - 项目类别:
Standard Grant
CSEDI Collaborative Research: The Origins and Implications of Inner Core Seismic Anisotropy
CSEDI合作研究:内核地震各向异性的起源和意义
- 批准号:
2054993 - 财政年份:2021
- 资助金额:
$ 16.46万 - 项目类别:
Standard Grant