| 浙江诸暨璜山金矿构造特征及深部找矿预测 |
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| 引用本文： | 解国爱.浙江诸暨璜山金矿构造特征及深部找矿预测[J].地质与勘探,2017,53(4):615-623. |
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| 作者姓名： | 解国爱 |
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| 作者单位： | 1. 南京大学地球科学与工程学院,江苏南京,210023;2. 浙江鑫盛黄金有限公司,浙江诸暨,311809;3. 中国地质科学院地质研究所,北京,100037 |
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| 基金项目： | 国家自然科学基金项目（编号41372158）和全国重要成矿带重大科技问题公关项目（编号12120114005001）资助 |
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| 摘 要： | 诸暨璜山金矿是浙江省著名的金矿之一,位于江山-绍兴断裂带北东段。本文通过对璜山金矿和庙下畈金矿的构造特征进行对比研究,认为这两个金矿形成的构造背景和成矿时代基本相同,但矿体走向和剪切动向截然不同,璜山金矿赋存于NE走向的剪切带内,庙下畈金矿位于NW走向的剪切带内,二者构成共轭剪切带,叠加在江山-绍兴主干韧性剪切带之上。成矿后该区先后受到NW-SE和NNE-SSW方向的挤压,形成NW走向和近SN方向的脆性断裂,对矿体起到破坏作用。依据共轭剪切带的空间分布,推测江绍断裂南东侧可能存在与璜山金矿对应的赋矿剪切带,该带位于新元古代陈蔡群变质岩之下,埋藏较深,是璜山地区深部找矿的有利勘探区。
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| 关 键 词： | 璜山金矿 共轭剪切带 庙下畈金矿 深部找矿 诸暨 浙江 |
| 收稿时间： | 2017/1/15 0:00:00 |
| 修稿时间： | 2017/2/28 0:00:00 |
Structural characteristics and prediction for deep gold ore prospecting in the Huangshan gold deposit, Zhuji, Zhejiang Province |
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| Xie Guo-ai.Structural characteristics and prediction for deep gold ore prospecting in the Huangshan gold deposit, Zhuji, Zhejiang Province[J].Geology and Prospecting,2017,53(4):615-623. |
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| Authors: | Xie Guo-ai |
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| Institution: | School of Earth Sciences and Engineering, Nanjing University, Nanjing, Jiangsu; Zhejiang Xinsheng Gold Ltd.,Shuji,Zhejiang; Institute of Geology,Chinese Academy of Geological Sciences,Beijing |
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| Abstract: | The Huangshan glod deposit is one of the famous gold deposits in Zhuji , Zhejiang Province. It is located in the northeastern section of the Jiangshan-Shaoxing fault zone. A comparative study on the structural characteristics of this deposit and the Miaoxiafan gold deposit suggests that they have the same tectonic setting, roughly identical mineralization ages, but different ore-body strikes and shear directions. The Huangshan gold deposit occurs in a shear zone of NE-trending, while the Miaoxiafan gold deposit lies at a NW-trending shear zone. The two shear zones constitute a conjugate shear zone superimposed on the main Jianshan-Shaoxing ductile shear zone. The NE-trending and nearly NS-trending brittle fractures, caused by NW-SE and NNE-SSW directed compressive stress after the mineralization, destroyed the early orebodies. According to the spatial distribution of conjugate shear zones, we infer that there is a mineral-bearing shear zone corresponding to the Huangshan shear zone on the south-east side of the iangshan-Shaoxin fault. This zone is located under the metamorphic rocks of the Neoproterozoic Chencai group and buried deeply, which should be a favorable exploration block in this area. |
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| Keywords: | Huangshan gold deposit ductile shear zone Miaoxiafan gold deposit prediction of ore prospecting at depth Zhuji Zhejiang Province |
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