| 辽宁西部两条大型韧性剪切带及其地质意义 |
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| 引用本文： | 王汉霞,李世涛.辽宁西部两条大型韧性剪切带及其地质意义[J].国土资源,1988(3). |
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| 作者姓名： | 王汉霞 李世涛 |
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| 作者单位： | 辽宁省地质矿产局区域地质调查队，大连经济技术开发区东北矿产公司 |
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| 摘 要： | 在辽宁西部地区有两条大型韧性剪切带通过。颜家沟—大营子韧性剪切带,总体走向70°,区内长250km,宽10km;大巴—瓦子峪—后三角山韧性剪切带,总体呈30°走向,区内长150km,宽5—10km。两条韧性剪切带的边界以断层为界,切穿太古代变质岩,以及海西期、燕山早期花岗岩体。带内太古代变质岩普遍退化变质。辽西两条韧性剪切带具有多期次、继承性活动特点,其形成时代可以追溯到加里东期,与古板块活动有关。韧性剪切带可做为太古代高级变质区寻找金属矿床的有利条件之一。
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TWO LARGE-SCALE DUCTILE SHEAR ZONE IN WESTERN LIAONING AND THEIR GEOLOGICAL SIGNIFICANCE |
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| Wang Hanxia.TWO LARGE-SCALE DUCTILE SHEAR ZONE IN WESTERN LIAONING AND THEIR GEOLOGICAL SIGNIFICANCE[J].Land & Resources,1988(3). |
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| Authors: | Wang Hanxia |
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| Abstract: | There are two large-scale ductile shear zone existing in wcatern Liaoning They arc Yanjiagou-Daymgzi ductile shear zone, 250 km long, 10 km wide, NEE strike, and Daba-Waziyu-Hcushanjiaoshan ductile shear zone,150 km long,5-10 km wide,NNE strike The two ductile shear zones,bounded on faults,penetrate Archaean metamorphic recks and the granitic bodies of Hercynian and the early Yanshan period. The Archaean metamorphic rocks in the zones have generally retrogressed and metamorphosed The two zones have the characters of polytim(?) and inherited activity,and the forming time dates from Caledonian Age, with the connections of ancient plate. So the ductile shear zone can be (?)ne of the conditions of finding metal deposits in Archaeozoic high-grade metamorphic areas |
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| Keywords: | Western Liaoning Ductile shear zone Polytime Innerited activity |
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