| 岫岩北瓦沟构造序列及构造演化 |
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| 引用本文： | 戴立军.岫岩北瓦沟构造序列及构造演化[J].国土资源,1988(1). |
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| 作者姓名： | 戴立军 |
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| 作者单位： | 冶金工业部天津地质研究院 |
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| 摘 要： | 在吕梁造山旋回期间(1900Ma)北瓦沟辽河群经受了多幕变质和多期变形的改造,可识别出三组皱褶构造:1.早期近东西向片内平卧褶皱,由固态流变机制形成(F_1);2.枢扭北北西—南南东向不对称褶皱(F_2);3.北东向开阔褶皱构造(F_3)。此外,还发育与褶皱构造相关的布丁构造和布丁褶皱。赋存在辽河群中的铅锌矿床遭受了强烈的改造作用并严格受构造控制。
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| 关 键 词： | 北瓦沟 吕梁造山旋回 构造序列 层控铅锌矿床 |
STRUCTURE SEQUENCE AND TECTONIC EVOLUTION OF BEIWAGOU AREA, XIUYAN COUNTY, LIAONING PROVINCE, CHINA |
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| Dai Lijun.STRUCTURE SEQUENCE AND TECTONIC EVOLUTION OF BEIWAGOU AREA, XIUYAN COUNTY, LIAONING PROVINCE, CHINA[J].Land & Resources,1988(1). |
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| Authors: | Dai Lijun |
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| Abstract: | The Liaohe Group of the Beiwagou area was subjected to multiple metamorphism and deformation during the Luliang orogenic cycle (1 900Ma). Three sets of small folds may be recognized: (1) early intrafolial recumbent folds with E-W trending which are considered to be the result of the mechanism of solid-state flow (F_1); (2)asymmetrical folds whose hinges trend NNW-N to SSE-S(F_2); and (3)NE trending open folds; as well as associated boudins and boudined folding. Lead-Zinc deposits occurred in the Liaohe Group in the area were intensly undergone reforma-tion and structurally controlled. |
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| Keywords: | Beiwagou area Luliang orogenic cycle Structural sequence Stratia-bound lead-zinc deposit |
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