安徽无为凤凰山地区地质、地球物理及地球化学特征与找矿潜力分析  

Geological,geophysical and geochemical characteristics and prospecting potential analysis of the Fenghuang Mountain area in Wuwei,Anhui Province

作　　者：张国强 ZHANG Guoqiang(No.327 Unit,Bureau of Geology and Mineral Exploration of Anhui Province,Hefei,Anhui 230011,China)

机构地区：[1]安徽省地质矿产勘查局327地质队,安徽合肥230011

出　　处：《安徽地质》2024年第4期315-318,323,共5页Geology of Anhui

基　　金：安徽省地质勘查基金项目“安徽省无为市杨家桥-凤凰山铜金多金属矿普查”(编号:2022-1-2)资助。

摘　　要：安徽无为凤凰山地区位于大别造山带前陆带和含巢褶冲带的西南部,庐枞盆地的东北部边缘,构造、岩浆活动频繁,矿化蚀变强烈,周边矿产资源丰富,形成了大量的铁、铜、铅锌(银)、金矿床(点)。相继发现了岳山铅锌矿、黄屯硫铁铜金多金属矿及西湾铅锌矿等矿床。在综合分析研究区以往工作成果时,发现研究区东部下埠山-凤凰山地区存在大理岩化蚀变及黄铁矿化、褐铁矿化、金矿化、铜矿化,西部白湖东大圩地区存在绢云母化、角岩化、高岭土化蚀变及铅、锌、银矿化,同时地球物理地球化学异常套合良好,揭示研究区存在寻找矽卡岩型、热液充填交代型铅、锌、银、金多金属矿与斑岩型铅、锌、银、金多金属矿的可能,具有较好的找矿潜力。The Fenghuang Mountain area in Wuwei,Anhui Province is located in the southwest of the Dabie orogenic foreland belt and the Han-Chao fold thrust belt,and on the northeastern margin of the Lu-Zong basin,where frequent tectonic and magmatic activities,and intense mineralization alterations result in a large number of iron,copper,lead-zinc(silver)and gold deposits(ore occurrences).The Yueshan Pb-Zn deposit,Huangtun S-Fe-Cu-Au polymetallic deposit and Xiwan Pb-Zn deposit have been discovered successively.After comprehensive analysis of the previous work results in the study area,marble alteration,pyritization,limonization,gold mineralization and copper mineralization were found in the Xiabushan-Fenghuang Mountain area in the eastern part,and sericitization,hornfels and kaolinization alterations,and lead,zinc and silver mineralization in the Dongdawei area,Baihu in the western part,and the geophysical and geochemical anomalies are well coincided with each other,indicating a good potential for searching for lead,zinc,silver and gold polymetallic deposits of skarn type and hydrothermal filling metasomatic type,and for lead,zinc,silver and gold polymetallic deposits of porphyry type in the study area.

关 键 词：地质特征 地球物理特征 地球化学特征 找矿潜力 凤凰山地区 

分 类 号：P618[天文地球—矿床学] P631[天文地球—地质学] P632