| 熊耳山北坡含金断裂带显微变形构造及其成因机制探讨 |
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| 引用本文： | 包云河.熊耳山北坡含金断裂带显微变形构造及其成因机制探讨[J].铀矿地质,2002,18(2):89-96. |
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| 作者姓名： | 包云河 |
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| 作者单位： | 湖南省核工业地质局,湖南长沙,410011 |
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| 摘 要： | 本区金矿化产于太古界结晶基底之上的中元古界熊耳群陆相火山岩中，成矿断裂集中分布在4条带上，断裂构造具多期活动特征，存在两类不同的变形，韧性变形在宏观上表现为强片理化带，显微构造十分发育，脆性变形具张性特征，与矿化关系密切，本对这两类变形的产物－糜棱岩和同生石英脉的显微构造，地球化学特征和形成机制，含金性等方面进行了详细研究。
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| 关 键 词： | 含金断裂带 韧脆性变形 显微构造 同生石英脉 断裂构造 糜棱岩 形成机制 金矿化 |
| 文章编号： | 1000-0658(2002)02-0089-08 |
| 修稿时间： | 2001年7月4日 |
Microdeformation structures of gold-bearing fault zones on northern slopeof Xionger Mountain and discussion on their genetic mechanism |
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| BAO Yun-he.Microdeformation structures of gold-bearing fault zones on northern slopeof Xionger Mountain and discussion on their genetic mechanism[J].Uranium Geology,2002,18(2):89-96. |
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| Authors: | BAO Yun-he |
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| Abstract: | Gold mineralization in the study area is hosted in continental volcanic rocks of Middle Proterozoic, Xionger Group overlying the Archean crystalline basement.Ore-hosting faults are concentrated in four tectonic zones and characterized by multistage activities.There exist two kinds of deformation in the fault zones. Ductile deformation macroscopically is expressed as intense schistosity zones and microstructures are well developed.Brittle deformation shows tensional character and is closely related with gold mineralization.This paper expounds results of the detailed study of the products of the two kinds of deformation--mylonite and syngenetic quartz vein in aspects of microstructures,geochemical characteristics,the formation mechanism,as well as the gold-bearing characteristics of fault zones. |
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| Keywords: | gold-bearing fault zones ductile and brittle deformation microstructure syngenetic quartz vein northern slope of Xionger Mountain |
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