CSEDI: Alkaline-Earth Carbonate Melts at Deep Earth Conditions
CSEDI:碱土碳酸盐在地球深处熔化
基本信息
- 批准号:1763189
- 负责人:
- 金额:$ 68万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-04-15 至 2024-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Carbonates are common rock-forming minerals that contain significant carbon in their crystal structures, and thus represent a dominant reservoir for carbon in the Earth System. Despite their primary role in the long-term carbon cycle, we currently have a very limited understanding of their melting behavior at the relevant conditions deep inside the Earth. The carbon hosted in carbonate-bearing rocks is carried into the Earth by subducting oceanic plates, where it is either returned to the surface through volcanism or dragged further down into the deep mantle, depending on the depth of carbonate melting. The melting properties of carbonates thus directly control the long-term component of Earth's carbon cycle. This project is focused on better understanding the details of carbonate melting at extreme pressures and temperatures by combining diverse research techniques using experiments, simulations, and statistical modeling. In addition to improving our fundamental understanding of the deep carbon cycle, this project supports developing both technical and leadership expertise; the project is being led by an early career research scientist who will join the co-investigators in the training of two graduate students in a variety of cutting edge research techniques that are also broadly applicable to future material properties research.The thermodynamic melting properties of carbonates directly control the long-term component of Earth's carbon cycle, and yet this key area has remained poorly understood as a result of practical challenges for carbonate melting experiments. These difficulties include decomposition prior to melting at pressures below ~3 GPa, as well as extreme sensitivities of the melting behavior to pressure, temperature, and composition (including water content), which severely complicate analysis of such experiments. The goal of this proposal is to combine multiple experimental and theoretical methods to characterize the thermodynamics of solid and molten alkaline earth carbonates, in the (Ca,Mg,Sr,Ba)CO3 system, which encompasses the dominant Mg-Ca bearing components most relevant to the deep Earth. The team's experimental objectives are to: (1) carry out conductivity-based in situ melt detection experiments up to 25 GPa for each endmember, (2) conduct liquid one-bar density and sound speed measurements to determine how each component affects melt density and compressibility, and (3) perform laser-heated diamond anvil cell measurements to constrain the high pressure-temperature (PT) equations of state of the solidus phases. These are combined with theoretical objectives to: (1) simulate the alkaline earth carbonate system using empirical molecular dynamics to predict high PT properties for both melt and mineral phases and (2) employ Bayesian statistical analysis to obtain a global self-consistent thermodynamic model of the (Ca,Mg,Sr,Ba)CO3 system. The final thermodynamic picture provided by this work represents a major stepping-stone on the path to incorporating carbonate melting into a variety of widely-used thermodynamic databases that underpin our understanding of geologic processes at extreme planetary conditions. Together the five techniques employed in this work, which rely on the cooperation and distinct expertise of the three principal investigators, will provide a comprehensive thermodynamic view of carbonate melting at deep mantle conditions.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
碳酸盐是常见的造岩矿物,在其晶体结构中含有大量的碳,因此代表了地球系统中碳的主要储层。尽管它们在长期碳循环中发挥着主要作用,但我们目前对它们在地球深处相关条件下的融化行为的了解非常有限。含碳酸盐岩中的碳通过俯冲的海洋板块被带入地球,在那里,它要么通过火山作用返回到地表,要么被进一步拉入地幔深处,这取决于碳酸盐熔融的深度。因此,碳酸盐的熔融特性直接控制着地球碳循环的长期组成部分。该项目的重点是通过结合使用实验,模拟和统计建模的各种研究技术,更好地了解极端压力和温度下碳酸盐熔融的细节。除了提高我们对深层碳循环的基本理解外,该项目还支持发展技术和领导能力。该项目由一位早期职业研究科学家领导,他将加入联合国,研究人员在培训两名研究生在各种尖端的研究技术,也广泛适用于未来的材料性能的研究。直接控制地球碳循环的长期组成部分,但由于碳酸盐融化实验的实际挑战,这一关键领域仍然知之甚少。这些困难包括在低于约3GPa的压力下熔化之前的分解,以及熔化行为对压力、温度和组成(包括水含量)的极端敏感性,这使得此类实验的分析严重复杂化。该提案的目标是联合收割机多种实验和理论方法来表征固体和熔融碱土碳酸盐的热力学,在(Ca,Mg,Sr,Ba)CO 3系统,其中包括占主导地位的Mg-Ca轴承组件最相关的深地球。该团队的实验目标是:(1)对每个端元进行高达25 GPa的基于电导率的原位熔体检测实验,(2)进行液体单杆密度和声速测量以确定每个组分如何影响熔体密度和可压缩性,以及(3)进行激光加热金刚石砧座单元测量以约束固相线相的高压-温度(PT)状态方程。这些都结合了理论目标:(1)模拟碱土金属碳酸盐系统使用经验分子动力学预测高PT性能的熔体和矿物相和(2)采用贝叶斯统计分析,以获得一个全球性的自洽的(Ca,Mg,Sr,Ba)CO 3系统的热力学模型。这项工作提供的最终热力学图像代表了将碳酸盐熔融纳入各种广泛使用的热力学数据库的道路上的主要垫脚石,这些数据库支持我们对极端行星条件下地质过程的理解。这项工作中采用的五种技术,依赖于三位主要研究人员的合作和独特的专业知识,将提供一个全面的热力学观点,碳酸盐熔融在深地幔conditions.This奖项反映了NSF的法定使命,并已被认为是值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估的支持。
项目成果
期刊论文数量(14)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Metallic iron limits silicate hydration in Earth’s transition zone
- DOI:10.1073/pnas.1908716116
- 发表时间:2019-10
- 期刊:
- 影响因子:0
- 作者:F. Zhu;Jie Li;Jiachao Liu;Junjie Dong;Zhenxian Liu
- 通讯作者:F. Zhu;Jie Li;Jiachao Liu;Junjie Dong;Zhenxian Liu
Liquidus determination of the Fe-S and (Fe, Ni)-S systems at 14 and 24 GPa: Implications for the Mercurian core
14 和 24 GPa 下 Fe-S 和 (Fe, Ni)-S 系统的液相线测定:对 Mercurian 核心的影响
- DOI:10.1016/j.epsl.2022.117865
- 发表时间:2022
- 期刊:
- 影响因子:5.3
- 作者:Pease, Allison;Li, Jie
- 通讯作者:Li, Jie
Castable solid pressure media for multianvil devices
- DOI:10.1063/1.5129534
- 发表时间:2020-01
- 期刊:
- 影响因子:5.1
- 作者:D. Walker;Jie Li
- 通讯作者:D. Walker;Jie Li
The density of Li2CO3-Na2CO3-K2CO3-Rb2CO3-Cs2CO3-CaCO3-SrCO3-BaCO3 liquids: New measurements, ideal mixing, and systematic trends with composition
Li2CO3-Na2CO3-K2CO3-Rb2CO3-Cs2CO3-CaCO3-SrCO3-BaCO3 液体的密度:新测量、理想混合和成分的系统趋势
- DOI:10.1016/j.gca.2018.12.031
- 发表时间:2019
- 期刊:
- 影响因子:5
- 作者:Hurt, Sean M.;Lange, Rebecca A.
- 通讯作者:Lange, Rebecca A.
Origin and consequences of non-stoichiometry in iron carbide Fe7C3
碳化铁 Fe7C3 中非化学计量的起源和后果
- DOI:10.2138/am-2019-6672
- 发表时间:2019
- 期刊:
- 影响因子:3.1
- 作者:Zhu, Feng;Li, Jie;Walker, David;Liu, Jiachao;Lai, Xiaojing;Zhang, Dongzhou
- 通讯作者:Zhang, Dongzhou
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Jie Li其他文献
Design of water-based annulus protection fluid for CO2 flooding injection well
CO2驱注入井水基环空保护液设计
- DOI:
10.1016/j.petrol.2021.108726 - 发表时间:
2021-04 - 期刊:
- 影响因子:0
- 作者:
Dezhi Zeng;Baojun Dong;Zhiming Yu;Zhiyao Huang;Yonggang Yi;Huiyong Yu;Jie Li;Gang Tian - 通讯作者:
Gang Tian
Mild C(sp3)H Alkylation of 8-Methylquinolines with a,b-Unsaturated Carbonyl Compounds by Rhodium(III) Catalysis
铑 (III) 催化下 8-甲基喹啉与 a,b-不饱和羰基化合物的轻度 C(sp3)H 烷基化
- DOI:
- 发表时间:
2017 - 期刊:
- 影响因子:2.7
- 作者:
Shengnan Han;Wenbo Ma;Zhao Zhang;Lei Liu;Mengyao Tang;Jie Li - 通讯作者:
Jie Li
UAV Path Planning in Multi-task Environments with Risks through Natural Language Understanding
通过自然语言理解进行多任务环境下的无人机路径规划
- DOI:
10.3390/drones7030147 - 发表时间:
2023 - 期刊:
- 影响因子:4.8
- 作者:
Chang Wang;Zhiwei Zhong;Xiaojia Xiang;Yi Zhu;Lizhen Wu;Dong Yin;Jie Li - 通讯作者:
Jie Li
Optically tunable all-silicon chiral metasurface in terahertz band
太赫兹波段光学可调谐全硅手性超表面
- DOI:
10.1063/5.0039992 - 发表时间:
2021-02 - 期刊:
- 影响因子:4
- 作者:
Chenglong Zheng;Jie Li;Silei Wang;Jitao Li;Mengyao Li;Hongliang Zhao;Xuanruo Hao;Huaping Zang;Yating Zhang;Jianquan Yao - 通讯作者:
Jianquan Yao
Contribution of caspase-independent pathway to apoptosis in malignant glioma induced by carbon ion beams
Caspase非依赖性途径对碳离子束诱导恶性胶质瘤细胞凋亡的贡献
- DOI:
10.3892/or.2017.5529 - 发表时间:
2017 - 期刊:
- 影响因子:4.2
- 作者:
Zhang Luwei;Yan Jiawei;Liu Yang;Zha Qiuyue;Di Cuixia;Chao Sun;Jie Li;Liu Yuanyuan;Zhang Hong - 通讯作者:
Zhang Hong
Jie Li的其他文献
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{{ truncateString('Jie Li', 18)}}的其他基金
Collaborative Research: Effects of ferric iron on heat transport in Earth's mantle
合作研究:三价铁对地幔热传输的影响
- 批准号:
2310830 - 财政年份:2023
- 资助金额:
$ 68万 - 项目类别:
Continuing Grant
Collaborative Research: GLOW: Iron Redox Reactions in Magma Oceans and Differentiation of Rocky Planets
合作研究:GLOW:岩浆海洋中的铁氧化还原反应和岩石行星的分异
- 批准号:
2317024 - 财政年份:2023
- 资助金额:
$ 68万 - 项目类别:
Standard Grant
Collaborative: EAGER: Demonstration that Thin Film Phase Transformations Can Be Monitored at High-Temperature and High-Pressure in a Diamond Anvil Cell
协作:EAGER:证明可以在金刚石砧池中的高温高压下监测薄膜相变
- 批准号:
2031149 - 财政年份:2021
- 资助金额:
$ 68万 - 项目类别:
Standard Grant
Power Engineering Education for the Next-Generation Smart Grid Workforce
下一代智能电网劳动力的电力工程教育
- 批准号:
2121242 - 财政年份:2021
- 资助金额:
$ 68万 - 项目类别:
Standard Grant
CAREER: A Hierarchical Restructuring Operation Framework for Sustainable and Resilient Electricity Distribution Systems
事业:可持续和有弹性的配电系统的分层重组运营框架
- 批准号:
1952683 - 财政年份:2019
- 资助金额:
$ 68万 - 项目类别:
Standard Grant
CAREER: A Hierarchical Restructuring Operation Framework for Sustainable and Resilient Electricity Distribution Systems
事业:可持续和有弹性的配电系统的分层重组运营框架
- 批准号:
1653179 - 财政年份:2017
- 资助金额:
$ 68万 - 项目类别:
Standard Grant
Experimental Investigations of Carbon in Earth's Core
地核中碳的实验研究
- 批准号:
1219891 - 财政年份:2012
- 资助金额:
$ 68万 - 项目类别:
Standard Grant
Collaborative Research: Theoretical and Experimental Investigations on the Role of Iron in the Physics and Chemistry of the Lower Mantle
合作研究:铁在下地幔物理和化学中的作用的理论和实验研究
- 批准号:
1025629 - 财政年份:2010
- 资助金额:
$ 68万 - 项目类别:
Standard Grant
Constraints on core composition from nuclear resonant scattering and x-ray diffraction studies on Fe-light-element compounds
Fe 轻元素化合物的核共振散射和 X 射线衍射研究对核心成分的限制
- 批准号:
1023729 - 财政年份:2010
- 资助金额:
$ 68万 - 项目类别:
Continuing Grant
Collaborative Research: Theoretical and Experimental Investigations on the Role of Iron in the Physics and Chemistry of the Lower Mantle
合作研究:铁在下地幔物理和化学中的作用的理论和实验研究
- 批准号:
0738973 - 财政年份:2008
- 资助金额:
$ 68万 - 项目类别:
Standard Grant
相似海外基金
Reactivity Enhanced Low-Valent Alkaline Earth Metal Compounds
反应活性增强的低价碱土金属化合物
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- 资助金额:
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$ 68万 - 项目类别:
Grant-in-Aid for Early-Career Scientists
New Landscapes in Alkaline Earth and Lanthanide Chemistry
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- 批准号:
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- 批准号:
441268636 - 财政年份:2020
- 资助金额:
$ 68万 - 项目类别:
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- 批准号:
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