Microstructure in Marble: Evolution of Strength in Natural and Laboratory Deformation

大理石的微观结构:自然变形和实验室变形强度的演变

基本信息

  • 批准号:
    1118562
  • 负责人:
  • 金额:
    $ 43.48万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2011
  • 资助国家:
    美国
  • 起止时间:
    2011-09-01 至 2015-08-31
  • 项目状态:
    已结题

项目摘要

Strain localization is common in crustal orogenic belts, where shear zones are often found within carbonate rocks. Many field studies indicate that localization is accompanied by striking changes in such aspects of rock structure as grain size, lattice (crystallographic) preferred orientation, major and accessory phase chemistry, pore geometry, and phase dispersion. Previous laboratory studies indicate that creep strength changes over large intervals of strain, and that grain size, grain shape, and lattice preferred orientation evolve concurrently. Recent work also showed that the kinetics of recrystallization scaled with the rate of work done during deformation, that lattice preferred orientation could be strongly affected by the shape and dispersion parameters of accessory phases, and that Mg solid solutes influenced both grain-boundary mobility and the transition from diffusion to dislocation creep. In order to understand localization and evolution of strength during natural deformation, the size of each effect and the relative kinetics of the candidate mechanisms must be known. This project will make observations of deformation microstructure in carbonate rocks from shear zones in the Swiss Alps, and in samples deformed in the laboratory and in collaboration with workers at the Universities of Liverpool and Manchester, UK. Mechanical tests will include simple-shear, torsion, and conventional triaxial loading of natural and synthetic marbles at strain rates of 10^-2-10^-6 ^-1, confining pressures less than 300 MPa, and temperature between 500-1000 K. Two new techniques, microstrain mapping, and sequential microanalysis at high shear-strains, will be used to understand the kinetics and partitioning of strain amongst the various deformation mechanisms.By combining thorough fieldwork, careful experiments, and detailed observations, the aim is to bridge some of the gaps between laboratory and field studies. In addition to increasing knowledge of tectonics and mechanical properties of rocks, the laboratory work will improve the database for the mechanical behavior of carbonate rocks, which are of considerable interest in such engineering applications as enhanced recovery of oil in limestone reservoirs, sequestration of carbon dioxide in fractured and sedimentary carbonate formations, and designing engineered underground structures.
应变局部化在地壳造山带中很常见,在碳酸盐岩中经常发现剪切带。许多实地研究表明,局部化伴随着岩石结构的显著变化,如粒度、晶格(晶体学)优选取向、主相化学和副相化学、孔隙几何形状和相色散。先前的实验室研究表明,蠕变强度在大的应变区间内发生变化,晶粒尺寸、晶粒形状和晶格优先取向同时发生变化。最近的研究还表明,再结晶的动力学与变形过程中所做的功的速率成比例,晶格优先取向可能受到副相的形状和分散参数的强烈影响,Mg固体溶质影响晶界迁移率和从扩散到位错蠕变的转变。为了理解自然变形过程中强度的局部化和演化,必须知道每种效应的大小和候选机制的相对动力学。该项目将观察瑞士阿尔卑斯山剪切带碳酸盐岩的变形微观结构,以及在实验室变形的样品,并与英国利物浦大学和曼彻斯特大学的工作人员合作。机械测试将包括在应变率为10^-2-10^-6 ^-1、围压小于300 MPa、温度在500-1000 K之间的条件下,对天然大理石和合成大理石进行简单剪切、扭转和常规三轴加载。两种新技术,微应变映射和高剪切应变下的序列微分析,将用于了解各种变形机制之间的动力学和应变分配。通过结合彻底的实地考察、仔细的实验和详细的观察,目的是弥合实验室研究和实地研究之间的一些差距。除了增加构造学和岩石力学性质的知识外,实验室工作还将改善碳酸盐岩力学行为的数据库,这在诸如提高石灰岩储层石油采收率、裂缝和沉积碳酸盐岩地层二氧化碳封存以及设计工程地下结构等工程应用中具有相当大的兴趣。

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 }}

Brian Evans其他文献

Calibrating Your Printer
校准您的打印机
  • DOI:
  • 发表时间:
    2012
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Brian Evans
  • 通讯作者:
    Brian Evans
Number as Form and Content: A Composer’s Path of Inquiry
  • DOI:
    10.2307/1575855
  • 发表时间:
    1993-11
  • 期刊:
  • 影响因子:
    0.3
  • 作者:
    Brian Evans
  • 通讯作者:
    Brian Evans
Practical 3D Printers
实用的 3D 打印机
  • DOI:
    10.1007/978-1-4302-4393-9
  • 发表时间:
    2012
  • 期刊:
  • 影响因子:
    1.6
  • 作者:
    Brian Evans
  • 通讯作者:
    Brian Evans
Do referral guidelines recommend chest x-rays for patients with abdominal pain? A review
  • DOI:
    10.1016/j.jmir.2021.08.019
  • 发表时间:
    2021-12-01
  • 期刊:
  • 影响因子:
  • 作者:
    Brian Evans;Ernest Ekpo
  • 通讯作者:
    Ernest Ekpo
Greasing the fault
姑息迁就错误
  • DOI:
    10.1038/358544a0
  • 发表时间:
    1992-08-13
  • 期刊:
  • 影响因子:
    48.500
  • 作者:
    Brian Evans
  • 通讯作者:
    Brian Evans

Brian Evans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('Brian Evans', 18)}}的其他基金

Development of Microstructure and Creep Strength of Marble
大理石微观结构和蠕变强度的发展
  • 批准号:
    1451022
  • 财政年份:
    2015
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Standard Grant
Pilot Program: Autonomous Cohorts and Emergent Learning
试点计划:自主队列和紧急学习
  • 批准号:
    1002758
  • 财政年份:
    2010
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Standard Grant
Microstructure in Marble: Comparison of Dislocation and Grain Structure Produced in Natural and Laboratory Deformation
大理石的微观结构:自然变形和实验室变形产生的位错和晶粒结构的比较
  • 批准号:
    0711139
  • 财政年份:
    2008
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Continuing grant
Deformation Mechanics of an Asperity under Hydrothermal Conditions
水热条件下凹凸体的变形力学
  • 批准号:
    0609617
  • 财政年份:
    2006
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Continuing Grant
Dislocation Creep in Calcite Rocks with Evolving Microstructure
方解石岩石中的位错蠕变与演化的微观结构
  • 批准号:
    0510412
  • 财政年份:
    2005
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Continuing grant
Collaborative Research: Melt Transport and Mechanical Properties in Partially Molten Peridotites
合作研究:部分熔融橄榄岩的熔体传输和机械性能
  • 批准号:
    0452787
  • 财政年份:
    2005
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Continuing grant
Collaborative Research: Rheology of Altered Oceanic Lithosphere
合作研究:改变海洋岩石圈的流变学
  • 批准号:
    0405613
  • 财政年份:
    2004
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Standard Grant
Grain Growth and Recrystallization of Marble in Nature and Laboratory
自然和实验室大理石的晶粒生长和再结晶
  • 批准号:
    0309510
  • 财政年份:
    2003
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Continuing grant
Towards a Robust Constitutive Law for Calcite Rocks
建立方解石岩石的稳健本构定律
  • 批准号:
    0125669
  • 财政年份:
    2002
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Continuing grant
Collaborative Research: Laboratory Constraints on Relations Amoung Deformation, Permeability, and Melt Migration
合作研究:变形、渗透率和熔体迁移之间关系的实验室限制
  • 批准号:
    0095936
  • 财政年份:
    2001
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Continuing grant

相似海外基金

Mahogany, Enslaved Africans, Miskito Indigenous People at Chiswick House, Kenwood and Marble Hill, London
伦敦肯伍德和大理石山奇西克庄园的桃花心木、被奴役的非洲人、米斯基托土著人民
  • 批准号:
    2595804
  • 财政年份:
    2021
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Studentship
Burgess Shale fossils from Marble Canyon (Canadian Rockies) and the early diversification of animals
大理石峡谷(加拿大落基山脉)的伯吉斯页岩化石和动物的早期多样化
  • 批准号:
    RGPIN-2017-06810
  • 财政年份:
    2021
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Discovery Grants Program - Individual
IRES Track I: Terrestrial and UAS-based remote sensing, photogrammetry, and digital modeling of ancient marble quarries in Greece
IRES 轨道 I:希腊古代大理石采石场的陆地和无人机遥感、摄影测量和数字建模
  • 批准号:
    2107098
  • 财政年份:
    2021
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Standard Grant
Development of shape control technology of liquid droplet based on liquid marble engineering
基于液态大理石工程的液滴形状控制技术研究进展
  • 批准号:
    20H02803
  • 财政年份:
    2020
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
The Macabre in Marble: Michelangelo's Knowledge of Surface Anatomy in its Wider Intellectual Contexts, 1493-1559
大理石中的恐怖:米开朗基罗在更广泛的知识背景下的表面解剖学知识,1493-1559
  • 批准号:
    2433362
  • 财政年份:
    2020
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Studentship
Burgess Shale fossils from Marble Canyon (Canadian Rockies) and the early diversification of animals
大理石峡谷(加拿大落基山脉)的伯吉斯页岩化石和动物的早期多样化
  • 批准号:
    RGPIN-2017-06810
  • 财政年份:
    2020
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Discovery Grants Program - Individual
Burgess Shale fossils from Marble Canyon (Canadian Rockies) and the early diversification of animals
大理石峡谷(加拿大落基山脉)的伯吉斯页岩化石和动物的早期多样化
  • 批准号:
    RGPIN-2017-06810
  • 财政年份:
    2019
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Discovery Grants Program - Individual
Microbiome of the Airway and the Risk for Bronchopulmonary Dysplasia in the Lungs of Extreme Preterms: The MARBLE Study
气道微生物组和极度早产儿肺部支气管肺发育不良的风险:MARBLE 研究
  • 批准号:
    10094070
  • 财政年份:
    2018
  • 资助金额:
    $ 43.48万
  • 项目类别:
Burgess Shale fossils from Marble Canyon (Canadian Rockies) and the early diversification of animals
大理石峡谷(加拿大落基山脉)的伯吉斯页岩化石和动物的早期多样化
  • 批准号:
    RGPIN-2017-06810
  • 财政年份:
    2018
  • 资助金额:
    $ 43.48万
  • 项目类别:
    Discovery Grants Program - Individual
Microbiome of the Airway and the Risk for Bronchopulmonary Dysplasia in the Lungs of Extreme Preterms: The MARBLE Study
气道微生物组和极度早产儿肺部支气管肺发育不良的风险:MARBLE 研究
  • 批准号:
    10335238
  • 财政年份:
    2018
  • 资助金额:
    $ 43.48万
  • 项目类别:
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了