| DOI: | 10.1002/2015GL065837
|
| 论文题名: | Low-temperature plastic rheology of olivine determined by nanoindentation |
| 作者: | Kranjc K.; Rouse Z.; Flores K.M.; Skemer P.
|
| 刊名: | Geophysical Research Letters
|
| ISSN: | 0094-9519
|
| EISSN: | 1944-9250
|
| 出版年: | 2016
|
| 卷: | 43, 期:1 | | 起始页码: | 176
|
| 结束页码: | 184
|
| 语种: | 英语
|
| 英文关键词: | low-temperature plasticity
; nanoindentation
; olivine
|
| Scopus关键词: | Elasticity
; Extrapolation
; Finite element method
; Nanoindentation
; Olivine
; Plasticity
; Silicate minerals
; Deformation mechanism
; High pressure and high temperature
; In-laboratory experiments
; Laboratory experiments
; Low temperature conditions
; Low-temperature plasticity
; Nano-indentation methods
; Nanoindentation tests
; Temperature
; crack
; deformation mechanism
; finite element method
; indentation
; laboratory method
; lithosphere
; low temperature
; nanotechnology
; olivine
; plasticity
; rheology
; stress field
; temperature gradient
|
| 英文摘要: | Low-temperature plasticity is a deformation mechanism that occurs mainly at high stress and low temperatures and may be important in the shallow lithosphere, at the tips of cracks, and in laboratory experiments. Previous studies investigating the low-temperature plasticity of the mineral olivine have exhibited wide variability in their extrapolations to the athermal flow strength or Peierls stress. To better constrain the rheology of olivine, nanoindentation tests were performed on samples in the temperature range of 0-175°C. The indentation properties were converted to uniaxial properties using a finite element-based method. The data were fit to a standard flow law for low-temperature plasticity, and Peierls stresses between 5.32 and 6.45 GPa were obtained. These results provide increased confidence in the extrapolation of high-pressure and high-temperature laboratory experiments to low-temperature conditions and illustrate the applicability of nanoindentation methods to the study of mineral rheology. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84961285543&doi=10.1002%2f2015GL065837&partnerID=40&md5=9d95c4050c85bb315ada863f9b602064
|
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/10482
|
| Appears in Collections: | 科学计划与规划
气候变化与战略
|
|
There are no files associated with this item.
|
|
作者单位: | Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, United States
|
| Recommended Citation: | |
Kranjc K.,Rouse Z.,Flores K.M.,et al. Low-temperature plastic rheology of olivine determined by nanoindentation[J]. Geophysical Research Letters,2016-01-01,43(1).
|
|
|