| 内蒙古东乌旗达勒廷查干铅锌银矿区东矿段隐爆角砾岩特征及其地质意义 |
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| 引用本文： | 韩晓平.内蒙古东乌旗达勒廷查干铅锌银矿区东矿段隐爆角砾岩特征及其地质意义[J].地质与资源,2016,25(1):46-51. |
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| 作者姓名： | 韩晓平 |
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| 作者单位： | 辽宁省地质勘查院, 辽宁 大连 116100 |
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| 摘 要： | 达勒廷查干铅锌银矿床位于大兴安岭中段查干敖包铁、铅、锌成矿带北东段,其赋矿围岩为上侏罗统满克头鄂博组与燕山期花岗斑岩中的超浅成酸性隐爆角砾岩体.角砾岩体从中心向外侧有较显著的岩石类型分带,中心部位为隐爆含角砾凝灰岩,向外角砾增大,逐渐过渡为震碎角砾岩.角砾岩蚀变强烈,主要为高岭土化、绿泥石化、绿帘石化、绢云母化、碳酸盐化,局部硅化强烈,并有明显的蚀变分带现象.矿体呈脉状,产于角砾岩体中.对本矿床隐爆角砾岩特征的研究可为矿区外围及深部找矿提供参考.
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| 关 键 词： | 隐爆角砾岩 地质特征 达勒廷查干 内蒙古 |
| 收稿时间： | 2015-11-15 |
CHARACTERISTICS AND GEOLOGICAL IMPLICATION OF THE CRYPTO-EXPLOSIVE BRECCIA IN THE DALETINGCHAGAN Pb-Zn-Ag DEPOSIT IN INNER MONGOLIA |
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| HAN Xiao-ping.CHARACTERISTICS AND GEOLOGICAL IMPLICATION OF THE CRYPTO-EXPLOSIVE BRECCIA IN THE DALETINGCHAGAN Pb-Zn-Ag DEPOSIT IN INNER MONGOLIA[J].Geology and Resources,2016,25(1):46-51. |
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| Authors: | HAN Xiao-ping |
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| Institution: | Liaoning Institute of Geological Exploration, Dalian 116100, Liaoning Province, China |
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| Abstract: | The Daletingchagan Pb-Zn-Ag ore deposit is located in the northeastern part of the Qagan Obo Fe-Pb-Zn metallogenic belt in the middle section of Daxinganlin Mountains. The wallrocks of ore are the Upper Jurassic Manketouebo Formation and the acid crypto-explosive breccia within the Yanshanian granite porphyry. The breccia body has a significant lithologic zonation, from rubble-bearing tuff at the center, with increasing of rubble size, gradually to shattered breccias in outside. The breccia is strongly altered with an obvious alteration zoning, mainly including kaolinization, chloritization, epidotization, sericitization, carbonatization and locally strong silicification. The orebodies occur as veins in the breccia body. The study of the crypto-explosive breccia will provide a significant reference for the ore prospecting in the depth and adjacent areas. |
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| Keywords: | crypto-explosive breccia geologic characteristics Daletingchagan Inner Mongolia |
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