粒度对韧性剪切带岩石变形的影响

樊光明; 曾佐勋; 储东如; 刘立林

Volume 25 Issue 2

Mar. 2000

Turn off MathJax

Article Contents

Article Navigation > Earth Science > 2000 > 25(2): 159-162

FAN Guangming, CENG Zuoxun, CHU Dongru, LIU Lilin, 2000. EFFECT OF GRAIN SIZE ON ROCK DEFORMATION IN DUCTILE SHEAR ZONE. Earth Science, 25(2): 159-162.

Citation:

FAN Guangming, CENG Zuoxun, CHU Dongru, LIU Lilin, 2000. EFFECT OF GRAIN SIZE ON ROCK DEFORMATION IN DUCTILE SHEAR ZONE. Earth Science, 25(2): 159-162.

FAN Guangming, CENG Zuoxun, CHU Dongru, LIU Lilin, 2000. EFFECT OF GRAIN SIZE ON ROCK DEFORMATION IN DUCTILE SHEAR ZONE. Earth Science, 25(2): 159-162.

Citation:

FAN Guangming, CENG Zuoxun, CHU Dongru, LIU Lilin, 2000. EFFECT OF GRAIN SIZE ON ROCK DEFORMATION IN DUCTILE SHEAR ZONE. Earth Science, 25(2): 159-162.

PDF( 415 KB)

EFFECT OF GRAIN SIZE ON ROCK DEFORMATION IN DUCTILE SHEAR ZONE

Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074, China

Received Date: 1999-08-25
Publish Date: 2000-03-25

Abstract

Abstract

The tectonic simulation research indicates: (1) The grain size is one of important factors controlling the rheological behaviors of a rock. The coarser the grain of minerals in a rock, the higher the viscosity of the rock. (2) The lower the ratio of the granular mineral content to the matrix, the smaller the effect of the grain size to the rheological behaviors of the rock, and vice versa. (3) The difference between grain sizes of a rock affects greatly the development of a ductile shear zone. The finer the grain size, the greater the finite strain in the ductile shear zone. These conclusions are perfectly consistent with the geological phenomena observed in the field and the actual measurement of finite strain of rocks in the ductile shear zone.
- ductile shear zone,
- grain size,
- rheological behavior of rock,
- tectonic simulation

FullText(HTML)

References(10)

References

[1]	Ramsay J G. 剪切带的几何性质[J]. 徐树桐译. 地震地质译丛, 1982, (5): 25~35.
[2]	Simps C, 马瑞. 韧性剪切带中的有限应变和增量应变组构[J]. 世界地质, 1991, 12(1): 112~113. https://www.cnki.com.cn/Article/CJFDTOTAL-SJDZ199101096.htm
[3]	Ramsay J G, Huben M I. The techniques of modern structural geology(Vol. 2): folds and fracture[M]. London: Academic Press, 1987.
[4]	樊光明, 薛重生, 杨晓松. 江西田里和浙江游溪韧性剪切带特征及其意义[J]. 华东地质学院学报, 1997, 20(4): 301~308. https://www.cnki.com.cn/Article/CJFDTOTAL-HDDZ704.000.htm
[5]	O'Hara K. Fluid flow and volume loss during mylonitization: an origin for phyllonite in an overthrust setting, North Carolina, U.S. A[J]. Tectonophysics, 1988, 156: 21~36.
[6]	O'Hara K, Blackburm W H. Volume loss model for trace element enrichments in mylonites[J]. Geol, 1989, 17: 524~527.
[7]	Selverstone J, Morkeani G, Stande J M. Fluid channelling during ductile shearing: transformation of granodiorite into aluminous schist in the Tauern Window, Eastern Apls[J]. J of Metamorphic Geol, 1991, 9: 419~431. doi: 10.1111/j.1525-1314.1991.tb00536.x
[8]	郑亚东, 常志忠. 岩石有限应变测量及韧性剪切带[M]. 北京: 地质出版社, 1985. 40~55.
[9]	曾佐勋, 刘立林, 黄定华, 等. 高粘度非牛顿模型材料流变性能的实验测定[J]. 地质力学学报, 1995, 1(2): 35 ~39. https://www.cnki.com.cn/Article/CJFDTOTAL-DZLX502.004.htm
[10]	曾佐勋, 刘立林. 陈氏网格法及其在地质学中的应用初探——以韧性剪切带有限变形实验为例[J]. 地质科学, 1992, (增刊): 82~92. https://www.cnki.com.cn/Article/CJFDTOTAL-DZKX1992S1007.htm