Mica kink-band geometry as an indicator of coseismic dynamic loading
Mica kink-band geometry as an indicator of coseismic dynamic loading
复制标题
云母扭结带几何形状作为同震动态载荷的指标
DOI:
10.1016/j.epsl.2021.117000
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发表时间:
2021
影响因子:
5.3
通讯作者:
Cruz-Uribe, Alicia M.
中科院分区:
文献类型:
--
作者:
Anderson, Erik K.;Song, Won Joon;Johnson, Scott E.;Cruz-Uribe, Alicia M.
Recognizing that exhumed shear zones had a seismogenic history is an important prerequisite for microstructural studies of energy partitioning in the earthquake source region. Using optical measurements of kinked micas along the Sandhill Corner shear zone, a seismogenic fault/shear zone exhumed from the base of the frictional-to-viscous transition, we demonstrate that their geometric properties are statistically different from kinks in micas that underwent regional deformation and metamorphism. Kink-band asymmetries and the angles of external rotation are larger in rocks from the Sandhill Corner shear zone, whereas kink-band widths are smaller. Our data show remarkable similarities to kink bands from dynamic deformation experiments, meteorite impacts, and nuclear explosion sites, suggesting a dynamic origin for their formation. Our results suggest that mica kink bands may be a useful indicator of dynamic loading and paleoseismicity in the rock record.
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DOI:
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发表时间:
1965
期刊:
影响因子:
--
作者:
N. Short
通讯作者:
N. Short
DOI:
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发表时间:
1983
期刊:
影响因子:
--
作者:
A. Baronnet;J. Olives
通讯作者:
J. Olives
影响因子:
3.1
作者:
Song, Won Joon;Johnson, Scott E.;Gerbi, Christopher C.
通讯作者:
Gerbi, Christopher C.
影响因子:
5.3
作者:
Song, Bo Ra;Johnson, Scott E.;Song, Won Joon;Gerbi, Cristopher C.;Yates, Martin G.
通讯作者:
Yates, Martin G.
DOI:
--
发表时间:
1980
期刊:
影响因子:
--
作者:
L. E. Weiss
通讯作者:
L. E. Weiss