辽宁省泉眼沟硅灰石矿床地质特征及找矿方向  

GEOLOGY AND PROSPECTING OF THE QUANYANGOU WOLLASTONITE DEPOSIT IN LIAONING PROVINCE

作　　者：马忠林[1] 姜宝军[1] 赵东波[1] 焦殿阳[1] 张喜平[1] 陈元江[1] 

机构地区：[1]辽宁省第九地质大队,辽宁铁岭112000

出　　处：《地质与资源》2011年第3期172-178,共7页Geology and Resources

基　　金：辽宁省地质勘查基金项目"辽宁省铁岭市调兵山硅灰石矿普查"[2008(40);2009(15)]资助

摘　　要：泉眼沟硅灰石矿床是近年来发现的特大型矿床,区域上与吉林省大顶子、北崴子等矿床同处于吉黑褶皱系构造隆起带的南缘,是我国硅灰石矿最重要的成矿带和主要产区之一.该区矿体多呈层状、似层状赋存于古生界富拉堡子岩组硅质大理岩中.硅灰石矿体主要有4种矿石类型,即方解石-硅灰石型、硅灰石型、石英-硅灰石型和方解石-石英-硅灰石型.矿物组分有硅灰石、方解石、透辉石、钙铝榴石、石英,少数样品含黄铁矿、金、钼等.经研究和分析认为,区内硅灰石矿床是多期次和多阶段岩浆热液活动的产物,成矿作用与三叠世中、酸性侵入岩关系密切,矿床类型属层控接触热变质型.The Quanyangou wollastonite large-sized deposit,found in Liaoning Province recently,is situated in the southern tectonic uplift belt of Ji-Hei fold system with Dadingzi and Beiwaizi deposits,which is one of the most important metallogenic belts and main producing areas for wollastonite in China.The orebodies occur in the marble of Paleozoic Fulapuzi rock formation,mainly in four types,i.e.calcite-wollastonite type,wollastonite type,quartz-wollastonite type and calcite-quartz-wollastonite type.The mineral compositions include wollastonite,calcite,diopside,grossular and quartz,with minor pyrite,gold,molybdenum,etc.It is believed that the wollastonite deposits in the area are formed by the magmatic activities in multi-stage and multi-period.The mineralization is concerned closely with the Triassic acidic intrusive rocks.The deposit is of stratabound thermal contact metamorphic type.

关 键 词：硅灰石 吉黑褶皱系 隐伏矿体 泉眼沟 辽宁省 

分 类 号：P619.2[天文地球—矿床学]