| 基于遥感的新疆西准哈图地区宝贝断裂的发现及其找矿意义 |
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| 引用本文： | 王军年,刘磊,周军,胡志军,纪征宝.基于遥感的新疆西准哈图地区宝贝断裂的发现及其找矿意义[J].地质找矿论丛,2018,33(1):100-107. |
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| 作者姓名： | 王军年 刘磊 周军 胡志军 纪征宝 |
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| 作者单位： | 新疆地质矿产局第七地质大队;长安大学地球科学与资源学院; |
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| 基金项目： | 国家自然科学基金项目（编号：41402288）资助。 |
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| 摘 要： | 哈图地区地处西准噶尔达尔布特断裂带上盘,有利的构造及热动力条件导致该区形成许多金矿床、矿(化)点。文章以多种遥感数据为主导,在哈图地区开展矿产勘查工作。首先利用HSI编码的ETM+图像,增强、解译识别区内断裂;然后利用ASTER数据及光谱匹配滤波法提取矿化蚀变信息;重点部位采用Quickbird高分辨率数据解译小岩体和石英脉;并将多种结果进行综合分析。结果表明,HSI编码的ETM+图像可以有效解译出区内主断裂和次级断裂,并在安奇断裂和达尔布特断裂间解译出了宝贝断裂;蚀变信息结果与已知矿床、矿(化)点吻合较好,沿宝贝断裂带提取出了一条白云母、高岭土、绿泥石蚀变带;利用Quickbird高分辨率数据解译出了2个中酸性小岩体和数条石英脉,通过对小岩体和石英脉进行野外检查,发现了铜矿化点及微弱金矿化点多处,为后续的找矿提供了方向。
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| 关 键 词： | 哈图地区 ETM+ ASTER Quickbird 宝贝断裂 新疆 |
| 收稿时间： | 2016/10/10 0:00:00 |
| 修稿时间： | 2017/4/9 0:00:00 |
The remote sensing data-based discovery of Baobei Fault and Its Significance for Mineral Prospecting in Hatu area, Western Junggar, Xinjiang |
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| WANG Junnian,LIU Lei,ZHOU Jun,HU Zhijun and JI Zhengbao.The remote sensing data-based discovery of Baobei Fault and Its Significance for Mineral Prospecting in Hatu area, Western Junggar, Xinjiang[J].Contributions to Geology and Mineral Resources Research,2018,33(1):100-107. |
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| Authors: | WANG Junnian LIU Lei ZHOU Jun HU Zhijun and JI Zhengbao |
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| Institution: | Seventh Geological Brigade, Xinjiang Bureau of Geology and Mineral Resources, Wusu 833000, Xinjiang, China,School of Earth Sciences and Resources, Chang''an University, Xi''an 710054, China,School of Earth Sciences and Resources, Chang''an University, Xi''an 710054, China,Seventh Geological Brigade, Xinjiang Bureau of Geology and Mineral Resources, Wusu 833000, Xinjiang, China and Seventh Geological Brigade, Xinjiang Bureau of Geology and Mineral Resources, Wusu 833000, Xinjiang, China |
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| Abstract: | Hatu area is situated at the hanging wall of the Darbut fault with favorable structural and thermodynamic conditions and many gold deposits and occurrences discovered. This research uses multi-remote sensing data to explore mineralization in the Hatu area. Firstly, HSI coding method was used to process ETM+ data to enhance and interpret faults. Secondly, ASTER and matched filtering were adopted to extract alteration minerals. Thirdly, high-resolution Quickbird data was utilized to interpret small intrusions and quartz veins. Finally, all the results were analyzed synthetically to identify some targets. The result shows that the HSI coding ETM+ image is effective to interpret the main faults and secondary faults in the area. The alteration information is coincident with the known deposits. The Baobei fault was identified between Anqi fault and Darbut fault. A new alteration belt composed of muscovite, kaolinite and chlorite was extracted along Baobei fault and two small acid intrusions and a number of quartz veins were interpreted using Quickbird data. Through field inspection of the intrusions and quartz veins, a number of weak copper and gold mineralization locations were discovered for the first time. The result brings new geological knowledge of the region''s metallogeny and provides some new directions for mineral exploration in the future. |
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| Keywords: | Hatu ETM+ ASTER Quickbird Baobei fault Xinjiang |
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