河北丰宁营房银铅锌矿床特征及找矿方向研究  

Study on the Characteristics and Prospecting Direction of Yingfang Silver-lead-zinc Deposit in Fengning,Hebei Province

作　　者：梁景利 孙志辉 苏宏建 周红芳 赵二丽 刘秀娟 LIANG Jingli;SUN Zhihui;SU Hongjian;ZHOU Hongfang;ZHAO Erli;LIU Xiujuan(514 Brigade of North China Geological Exploration Bureau;Hebei Huakan Resource Environmental Survey Co.,Ltd.;College of Earth Science and Resources,China University of Geosciences(Beijing))

机构地区：[1]华北地质勘查局五一四地质大队 [2]河北华勘资环勘测有限公司 [3]中国地质大学(北京)地球科学与资源学院

出　　处：《现代矿业》2023年第12期50-55,共6页Modern Mining

摘　　要：营房大型银铅锌矿床位于华北陆块北缘、四岔口火山盆地东端、上黄旗—乌龙沟北北东向构造-岩浆岩带上,区域成矿地质条件优越。对矿床特征、矿体特征、矿石质量、围岩蚀变以及成矿过程进行详细阐述和分析,认为该矿床形成是构造+岩浆共同作用产物,海西期、燕山期岩浆活动提供了热源和主要的物源;北东向断裂构造活动直接控制着成岩和成矿作用。同时,围绕复式环线形构造交切部位,具备低阻中高极化激电异常和金银铜铅锌等组合异常,并伴有硅化、绢云母化、铅锌矿化等矿化蚀变的区域是找寻同类型矿床的主要方向。The Yingfang large silver-lead-zinc deposit is located on the northern edge of the North China block,the eastern end of the Sichakou volcanic basin,and the Shanghuangqi-Wulonggou north-north-east trending tectonic magmatic rock belt.The regional metallogenic geological conditions are superior.The characteristics of the deposit,the characteristics of the ore body,the quality of the ore,the alteration of the surrounding rock and the metallogenic process are elaborated and analyzed in detail.It is considered that the formation of the deposit is the product of tectonic+magmatic interaction,and the Hercynian and Yanshan magmatic activities provide heat source and main source.The NE-trending fault tectonic activity directly controls diagenesis and mineralization.At the same time,it is the main direction to find the same type of deposits around the intersection of the compound ring-shaped structure,with low-resistance medium-high polarization IP anomalies and gold-silver-copper-lead-zinc combination anomalies,accompanied by silicification,sericitization,lead-zinc mineralization and other mineralization and alteration areas.

关 键 词：大型银铅锌矿床 矿床特征 找矿方向 上黄旗-乌龙沟多金属成矿带 

分 类 号：P618.2[天文地球—矿床学]