| 陕西杨斜—丰北河地区金钨矿控脉(矿)断裂构造特征及演化与成矿关系分析 |
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| 引用本文： | 罗旭.陕西杨斜—丰北河地区金钨矿控脉(矿)断裂构造特征及演化与成矿关系分析[J].陕西地质,1991(1). |
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| 作者姓名： | 罗旭 |
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| 作者单位： | 陕西省地质矿产局第十三地质队 |
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| 摘 要： | 杨斜—丰北河地区金钨矿严格受断裂构造控制,控脉(矿)断裂分别表现为扭张性,扭性和压扭性特征,经历了多次动定转化。它们与区域性北东、北西西向断裂及深大断裂相互串接,共同组成区内控矿构造网络。进入印支成矿期,由于区域多应力场的转换叠加、岩浆活动,在区内出现对扭力隅方向的频繁交替变化,从而导致各级断裂力学性质的转化,是矿液形成、运移和成矿的决定因素。
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| 关 键 词： | 金钨矿 控脉(矿)断裂 构造与成矿 |
THE CHARACTERISTICS OF THE FRACTURE TECTONIC CONTROLLING VEINS (ORES) AND THE RELATIONSHIP BETWEEN THE TECTONIC EVOLUTION AND OREFORMING IN THE GOLD-WOLFRAM DEPOSIT IN THE YANGXIE-FENGBEIHE AREA IN SHAANXI |
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| Luo Xu.THE CHARACTERISTICS OF THE FRACTURE TECTONIC CONTROLLING VEINS (ORES) AND THE RELATIONSHIP BETWEEN THE TECTONIC EVOLUTION AND OREFORMING IN THE GOLD-WOLFRAM DEPOSIT IN THE YANGXIE-FENGBEIHE AREA IN SHAANXI[J].Geology of Shaanxi,1991(1). |
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| Authors: | Luo Xu |
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| Institution: | The Geological Team No.13 of the Shaanxi Bureau of Geology and Mineral Resources |
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| Abstract: | The gold-wolfram deposit in the Yangxie-Fengbeihe area is strictly controlled by fracture tectonics.The fractures controlling the veins(ores) are characterized by tenso-shear,shear and compresso-shear properties, which changed many times from stabilization to movement.They are con- nected with the regional fractures and deep-seated fractures in NE and NWW trends,thus forming the tectonic network controlling the ores in the area.In the Indosinian ore-forming period,the transformation and super- position of the regional multiple stress fields,magmatic movement and fre- quent alternation of the torsional force couple directions resulted in the transformation of the mechanic properties of fractures with different gra- de,which was the decisive factor for the ore fluid formation,movement and ore deposition. |
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| Keywords: | gold-wolfram deposit fractural structure ore formation structure controlling ore the Yangxie-Fengbeihe area |
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