Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL094379 |
Shallow rupture propagation of Pleistocene earthquakes along the Hurricane fault, UT, revealed by hematite (U-Th)/He thermochronometry and textures | |
Madison P. Taylor; Alexis K. Ault; Margaret L. Odlum; Dennis L. Newell | |
2021-08-19 | |
发表期刊 | Geophysical Research Letters
![]() |
出版年 | 2021 |
英文摘要 | The material properties and distribution of faults above the seismogenic zone promote or inhibit earthquake rupture propagation. We document the depths and mechanics of fault slip along the seismically active Hurricane fault, UT, with scanning and transmission electron microscopy and hematite (U-Th)/He thermochronometry. Hematite occurs as mm-scale, striated patches on a >10 m2 thin, mirror-like silica fault surface. Hematite textures include bulbous aggregates and cataclasite, overlain by crystalline Fe-oxide nanorods and an amorphous silica layer at the slip interface. Textures reflect mechanical, fluid, and heat-assisted amorphization of hematite and silica-rich host rock that weaken the fault and promote rupture propagation. Hematite (U-Th)/He dates document episodes of mineralization and fault slip between 0.65-0.36 Ma at ∼300 m depth. Data illustrate that some earthquake ruptures repeatedly propagate along localized slip surfaces in the shallow crust and provide structural and material property constraints for in models of fault slip. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/335946 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Madison P. Taylor,Alexis K. Ault,Margaret L. Odlum,et al. Shallow rupture propagation of Pleistocene earthquakes along the Hurricane fault, UT, revealed by hematite (U-Th)/He thermochronometry and textures[J]. Geophysical Research Letters,2021. |
APA | Madison P. Taylor,Alexis K. Ault,Margaret L. Odlum,&Dennis L. Newell.(2021).Shallow rupture propagation of Pleistocene earthquakes along the Hurricane fault, UT, revealed by hematite (U-Th)/He thermochronometry and textures.Geophysical Research Letters. |
MLA | Madison P. Taylor,et al."Shallow rupture propagation of Pleistocene earthquakes along the Hurricane fault, UT, revealed by hematite (U-Th)/He thermochronometry and textures".Geophysical Research Letters (2021). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论