| 许华起,梁瑞,赵军,杨艳艳,梁永生.河北“金三角”地区金矿地质特征及找矿方向[J].矿产勘查,2014,5(1):14-20 |
| 河北“金三角”地区金矿地质特征及找矿方向 |
| Geological characteristics of the “golden griangle” region and its prospecting target, Hebei |
| 投稿时间：2013-07-25 |
| DOI： |
| 中文关键词: “河北金三角” 成矿背景 成矿机制 找矿方向 |
| 英文关键词: Hebei “golden triangle” gold mineralization background mineralization mechanism prospecting target |
| 基金项目: |
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| 中文摘要: |
| 河北省西北部的宣化、崇礼、赤城三县交界部位为一金矿集中分布区域,被称作“河北金三角”。该区位于华北地台北缘内蒙地轴和燕山台褶带两个Ⅱ级构造单元中。尚义—赤城深大断裂横隔于内蒙地轴与燕山台褶带之间,由其派生的一系列构造与太古宇桑干群变质岩以及海西期、燕山期形成的岩浆岩三位一体,构成该区热液型金矿床的三大控矿因素。长期开发使其目前保有资源储量所剩无几,需尽快探寻新的矿源。综合研究认为,“金三角”成矿地质条件优越,仍具较大的找矿潜力。 |
| 英文摘要: |
| The junction area among Xuanhua county, Chongli county and Chicheng county located in the northwestern part of Zhangjiakou city, Hebei Province, is one of the main gold mineralization areas, which is well known as Hebei “gold triangle” region due to is the rich gold metal resources in the region. The explored gold metal resources in the gold triangle area accounts for more than 90% of the Zhangjiakou region. The Hebei gold triangle area is situated in the two second-order tectonic units, i.e., Yanshan platformal fold belt and Inner Mongolia Erath Axis, North China Plateform.A series of secondary faults derived from the deep Shangyi-Chicheng fault which transverses Inner Mongolia Earth Axis and Yanshan platformal fold belt, the metamorphic rocks of the Achaean Sanggan group and the magmatic rocks formed in the Hercynianperiod and the Yanshanian period are the three major ore-controlling factors of the hydrothermal type gold deposits in this golden triangle area. Currently, much less gold metal reserves remained in the region due to the long term of gold mining operation, thus, it is extremely required to explore the new gold deposits to keep the economic growth. Based on the integrated analysis, there is a great potential for finding new gold deposits in this gold triangle area. This paper outlines the gold prospecting targets through the analysis on the geological characteristics of the gold triangle area. |
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