阳原盆地化稍营地区断层主要活动时期的研究
A STUDY ON THE MAJOR PERIODS OF FAULTING
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摘要: 研究一个地区断层主要活动时期是了解地壳构造运动或断层发育历史的基础。本文仍沿用了传统研究法,并将同位素法和石英形貌法测年与显微构造分析法引进到研究断层主要活动时期的工作中,取得了能相互映正的结果,最后确定阳原盆地化稍营地区的断层经历过:元古代前;燕山期;6～9千万年;上新世——早更新世和最后一次较强烈活动在20—30万年以前等五次主要活动时期。Abstract: The Information on the major periods of fault activities in a region is a basis for understanding the history of crustal motion or fault development.
In this paper,the major periods of faulting in Huashaoying area, Yangyuan Cornty, have been studied by means of the traditional geological methods combining with isotopic dating,quartz surface textuer observing and microstructural analysis, and the better results have been obtainde.The main periods of faulting in the area are as follows: pre-proterozoic era; Yanshan cycle;the period of 60--90rna jPliocen Early Pleistocene epoch and the last period of 0.2—0.3ma. -
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[1] 1 马杏垣,张家声,劳秒元.前寒武纪构造格架,中国岩石圈动力学地图集。
2 杨主恩.北京密云北石城断裂带的断层特征及其地震事件的可能证据.地震地质,1981, 3 (4).
3 Sibson, R. H. Genertion of Pseudotachylte by Anciert Seismic Fault. Geophys, JR. astr. Soc. 1975, (43).
4 Sibson,R. H. Continetal Fault structure and the shauow Earthquake Soure. J. Geol,Soc. London,1983, 140 (5): 741-767.
5 Sibson,R, H. Earthquake and rock defsrmation in crus tar fault zone. Ann. Rev. Earth Planet. Sci. 1986, 14: 149-175.
6 刘行松,何永年.断层活动时间的定量研究.地震,1987, (2): 66—75.
7 刘行松,胥怀济.应用同位素测年法综合研究断层新活动.地震地质译丛,1991, 13 (3): 57-60.
8 李玶,张世良,刘行松,等.对长江三峡东段新构造的几点新认识.构造地质问题,北京:科学出版社,1965: 49—64。
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