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| 黑龙江争光金锌矿地质特征、矿床成因及找矿潜力 | |
| 引用本文： | 佟匡胤.黑龙江争光金锌矿地质特征、矿床成因及找矿潜力[J].地质与勘探,2015,51(3):507-518. |
| 作者姓名： | 佟匡胤 |
| 作者单位： | 1. 吉林大学地球科学学院,吉林长春130061;黑龙矿业集团股份有限公司,黑龙江哈尔滨 150090 2. 吉林大学地球科学学院,吉林长春,130061 3. 中国科学院大学地球科学学院,北京,100049 4. 黑龙矿业集团股份有限公司,黑龙江哈尔滨,150090 |
| 基金项目： | 中国地质调查局地质大调查项目(1212011120342)资助 |
| 摘 要： | 黑龙江争光金锌矿床位于我国北方重要的多宝山-铜山斑岩型铜、金、钼成矿带的南东端,构造上处于古亚洲成矿构造域和滨太平洋成矿构造域的叠加部位.矿床赋存于奥陶系多宝山组安山岩、安山质凝灰岩中;金锌矿体主要以裂隙充填脉状产出,矿物组合为石英+黄铁矿+闪锌矿+黄铜矿+方铅矿±碳酸盐矿物;围岩蚀变有硅化、青磐岩化、绢云母化、伊利石化等,青磐岩化大面积发育于矿体外围的火山岩中.通过对争光金锌矿床赋矿围岩、控矿构造、矿体产状、主成矿温度、流体包裹体等多方面对比研究,认为该矿床成因属于浅成低温热液型,成矿时代为燕山晚期.同时,对矿区地球物理和地质特征的研究显示,总体上矿区东部、北东部及Ⅱ号带倾向深部均具有进一步扩大找矿的潜力;根据火山-次火山环状构造活动特征,结合区内矿体实际分布规律,在Ⅰ、Ⅲ、Ⅳ号矿带组成的外环状带,以Ⅱ号矿带为中心放射状分布的内环带之间过渡区域内,以及在外环带内走向交汇部位,均为构造活动强烈区域,具有进一步勘查找矿潜力. |
| 关 键 词： | 地质特征 成矿成因 找矿前景 浅成低温热液 争光金锌矿床 黑龙江 |
| 收稿时间： | 2014/9/19 0:00:00 |
Geological characteristics, genesis and prospecting potential of the Zhengguang Au-Zn deposit in Heilongjiang Province |
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| Tong Kuang-yin.Geological characteristics, genesis and prospecting potential of the Zhengguang Au-Zn deposit in Heilongjiang Province[J].Geology and Prospecting,2015,51(3):507-518. | |
| Authors: | Tong Kuang-yin |
| Institution: | Collegue of earth science, Jilin University, Changchun, Jilin; Heilong Mining group co., LTD, Harbin, Heilongjiang; University of Chinese academy of sciences, Beijing |
| Abstract: | The Zhengguang gold-zinc deposit is located in the Duobaoshan-Tongshan porphyry Cu, Mo and Au metallogenic belt in northern China. In tectonics it lies at the conjunction between the Paleo-Pacific metallogenic tectonic domain and Circum-Pacific metallogenic tectonic domain. The deposit is preserved in the Ordovician Duobaoshan andesite and andesitic tuff. Its orebodies occur as fissure filling in vein shape, with mineral combination of quartz, pyrite, sphalerite, chalcopyrite, galena and carbonate. The wall rock alteration contains silicification, propylitization, sericitization and illitization, and well developed propylitization is present in volcanic rocks outside the orebody. According to the comparative?study of ore-bearing rock, ore-controlling structure, attitude of ore bodies, main ore-forming temperature and fluid inclusion, we inferred that the deposit belongs to the epithermal type and formed in the Late Yanshanian. Meanwhile, geochemistry and geological characteristics of the mining area show that east and northeast parts of the mining area possess further prospecting. On the basis of active characters of volcanic and sub-volcanic ring-shaped structure, and combing distribution rules of ore bodies, we suggest that the intensive tectonic activity areas have great potential for ore search, such as the outer annular zone composed of No.I, III and IV orebodies, transition region of internal annular zone in radial shape centered at No.II orebody, and the strike-along intersection area in the outer ring zone. |
| Keywords: | Geological characteristics Ore genesis Prospecting Epithermal Zhengguang Au-Zn deposit |
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