辽宁翁泉沟硼铁矿田地质特征及成矿因素分析  

Ore-forming Factors Analysis of Wengquangou Boron Iron Ore Field in Liaoning Province

作　　者：邓文婷[1] 孙莉[1] 孙桂涛 胡迪 Deng Wenting;Sun Li;Sun Guitao;Hu Di(Liaoning Province Seventh Geological Brigade Co.,Ltd.,Dandong Liaoning 118003,China)

机构地区：[1]辽宁省第七地质大队有限责任公司,辽宁丹东118003

出　　处：《山西冶金》2024年第8期95-97,共3页Shanxi Metallurgy

摘　　要：翁泉沟硼铁矿床是辽东地区已知的特大型硼铁矿床,累计探明B_(2)O_(3)组分量2185万t,B_(2)O_(3)平均品位7.23%;共生的铁矿储量28302万t,TFe平均品位30.65%,固体硼矿储量居亚洲第一位。后期在其外围又相继发现了马家西沟和于家岭2个中型硼铁矿床,及3个小型硼铁矿床。这些矿床矿石类型以磁铁矿-硼镁铁矿型、硼镁石磁铁矿型为主,具有铁、硼矿产共生,普遍呈现含铀、富镁、贫钙和多硫的特点,是在火山-沉积变质作用的基础上,又叠加了变质热液交代改造作用形成的。根据矿体地质特征,重点分析翁泉沟硼铁矿田成矿因素,并对其成矿模式进行探讨,为该区进一步的勘查找矿提供新的思路。The Wengquangou boron iron deposit is a known super large boron iron deposit in Liaodong area,with a cumulative proven B_(2)O_(3) component of 21.85 million tons and an average B_(2)O_(3) grade of 7.23%.The symbiotic iron ore reserves are 283.02 million tons,with an average TFe grade of 30.65%,and the solid boron ore reserves rank first in Asia.Later on,two medium-sized boron iron deposits,Majiaxigou and Yujialing,as well as three small-scale boron iron deposits,were successively discovered on its periphery.These mineral deposits are mainly composed of magnetite boromagnesian iron ore type and boromagnesian magnetite type,with the characteristics of iron and boron minerals coexisting,generally containing uranium,rich in magnesium,poor in calcium,and polysulfide.They are formed on the basis of volcanic sedimentary metamorphism,combined with metamorphic hydrothermal alteration.Based on the geological characteristics of the ore body,this study focuses on analyzing the ore-forming factors of the Wengquangou boron iron ore field and exploring its ore-forming model,providing new ideas for further exploration and prospecting in the area.

关 键 词：翁泉沟 硼铁矿田 矿体特征 成矿因素 成矿模式 

分 类 号：TD861[矿业工程—金属矿开采]