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
梁景利 1孙志辉 2苏宏建 2周红芳 1赵二丽 2刘秀娟2
作者信息
- 1. 华北地质勘查局五一四地质大队;河北华勘资环勘测有限公司;中国地质大学(北京)地球科学与资源学院
- 2. 华北地质勘查局五一四地质大队;河北华勘资环勘测有限公司
- 折叠
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.
Abstract
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 superi-or.The characteristics of the deposit,the characteristics of the ore body,the quality of the ore,the altera-tion of the surrounding rock and the metallogenic process are elaborated and analyzed in detail.It is consid-ered 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 activ-ity 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 medi-um-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Key words
large silver-lead-zinc deposit/deposit characteristics/prospecting direction/Shang-huangqi-Wulonggou polymetallic metallogenic belt引用本文复制引用
出版年
2023
NETL
NSTL
维普
万方数据