宁芜盆地钟九铁矿地质特征及成因分析  

GEOLOGICAL FEATURES AND GENETIC ANALYSIS OF THE ZHONGJIU IRON ORE DEPOSIT IN THE NINGWU BASIN

作　　者：高洁 GAO Jie(Integrated Mineral Exploration Unit,East-China Metallurgical Bureau of Geology and Exploration,Maanshan,Anhui 243000,China)

机构地区：[1]华东冶金地质勘查局综合地质大队,安徽马鞍山243000

出　　处：《安徽地质》2021年第3期232-234,239,共4页Geology of Anhui

摘　　要：钟九铁矿床位于宁芜盆地南段,其矿体呈似层状产于火山岩与三叠系中统黄马青组下段和三叠系中统周冲村组沉积岩的接触带附近。赋矿围岩蚀变强烈。矿床成因是岩浆热液交代围岩形成含矿热液,在适当的地质环境下形成矿床。矿床类型为白象山式钟九热液交代亚式的中型铁矿床。The Zhongjiu iron deposit is located in the southern part of the Ningwu Basin.The ore bodies are stratoid,occurring near the contact zone between the volcanic rocks and the sedimentary rocks of the lower member of the Huangmaqing Formation,and Zhouchongcun Formation,both being of the middle Triassic series.The wall rock alteration of the deposit is strong.The deposit is formed by ore-bearing hydrothermal fluid,as a result of magmatic hydrothermal replacement of the wall rock,in appropriate geological environment.It is middle-sized iron deposit of the Baixiangshan-type,and of the Zhongjiu hydrothermal metasomatism sub-type.

关 键 词：铁矿床成因 钟九岩体 宁芜盆地 

分 类 号：P612[天文地球—矿床学]