Mantle Anisotropic Structure and Dynamics Beneath the Western United States: Constraints from Shear-wave Splitting Analysis
美国西部地幔各向异性结构和动力学:剪切波分裂分析的约束
基本信息
- 批准号:0952064
- 负责人:
- 金额:$ 18.59万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2010
- 资助国家:美国
- 起止时间:2010-04-01 至 2013-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
One of the major discoveries in the geological science made over the past 50 years is that the crustal and the upper-most mantle of the Earth are divided into tens of 'pieces', or tectonic plates. Movement of the plates against one another is responsible for the formation of ocean basins, mountain ranges, rifted valleys, volcanoes, and earthquakes. In spite of numerous studies, however, the forces that are driving the movement of the plates remain unresolved. The ongoing project is designed to provide critical information on the driving mechanism of plate motion, by measuring the strength and direction of the fabrics formed by the movement of the plates. A database of thousands of shear-wave splitting parameters, which are measures of deformation in the lithosphere and flow in the underlain asthenosphere, is being established as an updated version of an existing shear-wave splitting database (NA-SWS-1.1 which can be accessed at http://www.mst.edu/~liukh/SWS) that the PI established for North America. The new database, like its first version, will be made public as soon as possible over the course of the project. The researchers involved in the current project are collecting geological and geophysical information to interpret the shear-wave splitting observations. Major scientific issues to be addressed by the proposed study include whether the western US is underlain pervasively by two-layer anisotropy, why the Colorado Plateau and adjacent areas show complex anisotropy, and what are the characteristics of mantle structure and dynamics beneath the transitional zone between the tectonically active western US and apparently inactive Great Plains.
在过去的50年里,地质科学的一个重大发现是,地壳和最上层的地幔被分成几十个“块”,或称构造板块。板块之间的运动导致了海洋盆地、山脉、裂谷、火山和地震的形成。 然而,尽管进行了大量的研究,驱动板块运动的力量仍然没有得到解决。正在进行的项目旨在通过测量板块运动形成的结构的强度和方向,提供有关板块运动驱动机制的关键信息。目前正在建立一个包含数千个剪切波分裂参数的数据库,这些参数是岩石圈变形和下面软流层流动的量度,作为PI为北美建立的现有剪切波分裂数据库(NA-SWS-1.1,可在http://www.mst.edu/souliukh/SWS上查阅)的更新版本。新的数据库与其第一版一样,将在项目实施过程中尽快公布。参与当前项目的研究人员正在收集地质和地球物理信息,以解释剪切波分裂观测结果。主要的科学问题,以解决拟议的研究,包括美国西部是否是普遍的两层各向异性,为什么科罗拉多高原和邻近地区表现出复杂的各向异性,以及什么是地幔结构和动力学的特征之间的过渡区构造活跃的美国西部和明显不活跃的大平原。
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)
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Kelly Liu其他文献
Development of Abraham model correlations for describing solute transfer into 2-methyl-1-butanol from both water and the gas phase from experimental solubility data of crystalline organic compounds
开发亚伯拉罕模型相关性,用于根据结晶有机化合物的实验溶解度数据描述溶质从水相和气相转移到 2-甲基-1-丁醇
- DOI:
10.1080/00319104.2019.1625050 - 发表时间:
2020 - 期刊:
- 影响因子:1.2
- 作者:
E. Qian;Avi Gupta;Reese Neal;Grace Lee;M. Che;Lainey Wang;David Yue;Rachel Fischer;M. Jodray;Erin Connolly;Shang;Kelly Liu;A. Zhang;Jingyi Dai;Siqi Zhu;W. Acree;M. Abraham - 通讯作者:
M. Abraham
Regional Determinants of Foreign Direct Investment in Manufacturing Industry
制造业外商直接投资的区域决定因素
- DOI:
10.5539/ijef.v4n12p178 - 发表时间:
2012 - 期刊:
- 影响因子:0
- 作者:
Kelly Liu;K. Daly;M. Varua - 通讯作者:
M. Varua
Abraham model correlations for describing solute transfer into 4-methyl-2-pentanol from both water and the gas phase
用于描述溶质从水相和气相转移到 4-甲基-2-戊醇的亚伯拉罕模型相关性
- DOI:
- 发表时间:
2019 - 期刊:
- 影响因子:6
- 作者:
E. Qian;Avi Gupta;Reese Neal;Grace Lee;M. Che;Lainey Wang;David Yue;Shang;Kelly Liu;A. Zhang;W. Acree;M. Abraham - 通讯作者:
M. Abraham
Charting Past, Present, and Future Research in the Semantic Web and Interoperability
绘制语义网和互操作性的过去、现在和未来研究
- DOI:
- 发表时间:
2022 - 期刊:
- 影响因子:3.4
- 作者:
Abderahman Rejeb;John G. Keogh;W. Martindale;Damion M. Dooley;E. Smart;S. Simske;S. Wamba;J. Breslin;K. Y. Bandara;S. Thakur;Kelly Liu;Bridgette Crowley;Sowmya Desaraju;Angela Ospina;Horia Bradau - 通讯作者:
Horia Bradau
Development of Abraham model correlations for solute transfer into 2-ethyl-1-hexanol from both water and the gas phase based on measured solubility ratios
基于测量的溶解度比,开发了溶质从水相和气相转移到 2-乙基-1-己醇的亚伯拉罕模型相关性
- DOI:
10.1080/00319104.2018.1564306 - 发表时间:
2020 - 期刊:
- 影响因子:1.2
- 作者:
Kelly Liu;Shang;Erin Hart;Alex Klein;Timothy W. Stephens;B. Bates;J. Calzada;Michael Garcia;Justice Abban;W. Acree;M. Abraham - 通讯作者:
M. Abraham
Kelly Liu的其他文献
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{{ truncateString('Kelly Liu', 18)}}的其他基金
Nature of a Low Velocity Anomaly in the Mantle Transition Zone Beneath the Western Great Plains
西部大平原地幔过渡带低速异常的性质
- 批准号:
2149587 - 财政年份:2022
- 资助金额:
$ 18.59万 - 项目类别:
Standard Grant
Investigating the Pervasiveness of Complex Seismic Anisotropy and Its Origin Beneath Continents
研究大陆下方复杂地震各向异性的普遍性及其起源
- 批准号:
1830644 - 财政年份:2018
- 资助金额:
$ 18.59万 - 项目类别:
Continuing Grant
Collaborative Research: Shear-wave Splitting and Mantle Dynamics of the North American Plate
合作研究:北美板块的剪切波分裂和地幔动力学
- 批准号:
1460516 - 财政年份:2015
- 资助金额:
$ 18.59万 - 项目类别:
Continuing Grant
Significant and complex seismic anisotropy beneath the Himalayas and the southern Tibetan Plateau
喜马拉雅山和青藏高原南部地区显着而复杂的地震各向异性
- 批准号:
0911346 - 财政年份:2009
- 资助金额:
$ 18.59万 - 项目类别:
Standard Grant
Testing the hypothesis of pervasive two-layer azimuthal anisotropy beneath North America
测试北美地下普遍存在的两层方位各向异性的假设
- 批准号:
0739015 - 财政年份:2008
- 资助金额:
$ 18.59万 - 项目类别:
Standard Grant
Searching for Seismic Discontinuities in the Lower Mantle Using Broadband Seismic Data
使用宽带地震数据寻找下地幔的地震不连续性
- 批准号:
0207466 - 财政年份:2002
- 资助金额:
$ 18.59万 - 项目类别:
Standard Grant
High Resolution Imaging of Mantle Discontinuities across South America at 20 Degrees South
南美洲南纬 20 度处地幔不连续性的高分辨率成像
- 批准号:
0001000 - 财政年份:2000
- 资助金额:
$ 18.59万 - 项目类别:
Standard Grant
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