地质与勘探2011，Vol.47Issue(2)：236-243,8.
河南省泌阳条山铁矿床地质特征及找矿前景
Geological Characteristics and Ore-Search Prospect of the Tiaoshan Iron Deposit in Biyang, Henan Province
刘国范 1马庚杰 1刘勤安 1刘伟颉 1刘文忠 1周文波 1张风瑞 1李宁博1
作者信息
- 1. 河南省地矿局第一地质工程院,河南驻马店463000
- 折叠
摘要
Abstract
The Tiaoshan iron-copper polymetallic deposit is situated in the conjunction area between the North China plate and Yangtze plate, in the Tongbai-Dabieshan metallogenic sub-belt, enstem section of the Qinling polymetallic mineralization belt. Tectonic lines in this region extend in NWW direction. The ore-beating stratum is spilite-keratophyre in the Erlangping Group. It has undergone four eruption cycles, forming four ore-bearing horizons in this area. The top of the first cycle is an iron-rich ore layer, belonging to the copper-zinc-beating magnetite of the Gnshan-volcanic lava type. It begins from Santiaoling, Shanxi Province, extending eastward by Tanghe and Taipingzhen to Maoji of Tongbai. The Tiaoshan iron deposit lies at the contact between spilite_keratophyre of the Erlangping Group and Yanshan granite, where silicifiction, chlorite and skarn are prominent, often resulting in magne-tite-rich ore bodies. These ore bodies look like stratified, quasi-stratified, and lens shapes, with transition relation to surrounding rocks. Its genesis is accumulation by volcanic extrusive sedimentation and hydrothermal superposition reformation. In this region, the NWW-SEE trending rift-style Erlang-ping ophiolite suit of the late Proterozoic-early Paleozoic is the favorable site for ore search. Moreover, the iron-bearing bed of the Erlangping Group and skamization are the important indicators for ore search. The Erlangping Group ophiolite suit stretches across western Henan Province for 400km or more,exhibiting a good prospect of search for such iron deposits.关键词
火山喷流沉积/热液叠加改造/找矿前景/条山铁矿床/河南泌阳Key words
volcanic extrusive sediment/ hydrothermal superposition reformation/ ore-search prospect/ Tiaoshan iron deposit/ Biyang in Henan Province分类
天文与地球科学引用本文复制引用
刘国范,马庚杰,刘勤安,刘伟颉,刘文忠,周文波,张风瑞,李宁博..河南省泌阳条山铁矿床地质特征及找矿前景[J].地质与勘探,2011,47(2):236-243,8.
