摘要
王安镇岩体北缘钼、金、银等多金属矿产丰富,成矿远景良好。通过总结区域地质、地球物理、地球化学特征,从地层、构造、岩浆岩等方面分析矿床成因。研究表明,该区钼金银多金属矿成矿受地层、构造、岩浆岩3方面因素控制明显,基底太古界阜平群变质岩是本区钼金银多金属成矿的矿源层;盖层碳酸盐岩是含矿液体流通、交代、沉淀的有利围岩,与乌龙沟、紫荆关断裂一起控制了本区金、银、钼、铅、锌、铜、铁等矿产的分布;拆离滑脱带体系发育,形态复杂,规模较大,蚀变矿化明显,是本区直接控岩、控矿的重要构造。燕山期中酸性岩脉的侵入提供丰富的成矿物源及热源,对本区以钼、金、银为主的多金属矿床成矿富集作用明显。研究认为地层、构造、岩浆岩多因素共同控制了王安镇岩体北缘钼金银多金属矿床的产出。
The northern margin of Wang'anzhen Rock Mass is rich in molybdenum,gold,silver and other polymetallic minerals with good metallogenic prospects.By summarizing regional geological,geophysi⁃cal and geochemical characteristics,the genesis of the deposit is analyzed from the aspects of strata,struc⁃ture and magmatic rocks.The results show that the mineralization of molybdenum-gold-silver polymetallic deposit in this area is obviously controlled by strata,structure and magmatic rocks.The metamorphic rocks of the basement Archean Fuping Group are the source beds for molybdenum-gold-silver polymetallic miner⁃alization in this area.Cap carbonate rocks are favorable surrounding rocks for ore-bearing liquid circula⁃tion,metasomatism and precipitation.Together with Wulonggou and Zijingguan faults,cap carbonate rocks control the distribution of gold,silver,molybdenum,lead,zinc,copper,iron and other minerals in this ar⁃ea.The remove slip zone is an important structure of direct rock control and ore control in this area,with complex shape,large scale and obvious alteration mineralization.The intrusion of intermediate-acid dikes in Yanshan provides abundant mineral sources and heat sources,and plays an obvious role in the mineral⁃ization and enrichment of polymetallic deposits dominated by molybdenum,gold and silver.It is concluded that the formation,structure and magmatic rocks jointly control the output of the molybdenum bullion polymetallic deposit in the northern margin of Wang'anzhen Rock Mass.
作者
董帅
徐如磊
洪文武
李松彬
包久荣
DONG Shuai;XU Rulei;HONG Wenwu;LI Songbin;BAO Jiurong(Tianjin North China Geological Exploration General Institute)
出处
《现代矿业》
CAS
2023年第5期21-24,共4页
Modern Mining
基金
河北省小河子矿集区深部找矿预测项目(编号:DD2019057014)。
关键词
王安镇岩体
钼金银多金属矿
成矿因素
Wang'anzhen Rock Mass
molybdenum-gold-silver polymetallic deposit
metallogenic factors
作者简介
董帅(1986-),男,工程师,300170天津市河东区。
