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1、第33卷第12期地質(zhì)通報(bào)Vo1.33,No.122014年12月GEoLoGICALBULLETINoFCHINADec.,2014豫西成礦帶嵩箕地區(qū)鉛族礦物自然重砂異常及其找礦意義陳志慧,朱平平,趙韻文。,翟文建,曹蕾,潘涵香,馬瑞華CHENZhi—hui,ZHUPing—ping2,ZHAOYun—wen。,ZHAIWen-jian,CAOLei,PANHan—xiang,MARui—hua1.河南省地質(zhì)調(diào)查院,河南鄭州450001;2.中國(guó)地質(zhì)大學(xué)(武漢)資源學(xué)院,湖北武漢430074;3.河南省地礦信息中心,河南鄭州450012
2、1.HenanInstituteofGeologicalSZhengzhou450001,Henan,China;2.FaultyofResources,ChinaUniversityofGeosciences,Wuhan430074,Hubei,China;3.InformationCenterofGeologyandMineralsofHenanProvince,Zhengzhou450012,Henan,China摘要:采用自然重砂數(shù)據(jù)庫(kù)系統(tǒng)(ZSAPS2.0)對(duì)河南省1:20萬(wàn)自然重砂測(cè)量數(shù)據(jù)進(jìn)行綜合分析,在嵩箕成礦亞區(qū)圈出了9
3、個(gè)鉛族礦物自然重砂異常,其中3個(gè)為Ⅱ級(jí)異常,6個(gè)為Ⅲ級(jí)異常。這些異常的礦物組成相對(duì)簡(jiǎn)單,以鉛族礦物為主,伴生有銅族礦物及少量鋅族礦物和辰砂、雄黃、雌黃、自然金等,異常主要分布于下古生界寒武系碳酸鹽巖地層區(qū),與已有礦點(diǎn)的礦物組合對(duì)比表明,異常由寒武系碳酸鹽巖中MVT型鉛鋅礦引起,對(duì)該區(qū)找礦有重要的指示意義。關(guān)鍵詞:鉛族礦物;自然重砂異常;MVT型;下古生界;豫西成礦帶;中圖分類號(hào):P618.42文獻(xiàn)標(biāo)志碼:A文章編號(hào):1671—2552(2014)12—1984—08ChenZH,ZhuPP,ZhaoYW,ZhaiWJ,CaoL,PanH
4、X,MaRH.NaturalheavymineralanomaliesofleadmineralsinSongjiareaoftheWestHenanmetallogenicbeltandtheirprospectingsignificance.GeologicalBulletinofChina,2014,33(12):1984—-1991Abstract:1:200000naturalheawmineraldatabaseinHenanProvincewasanalyzedcomprehensivelywithNaturalHeavy
5、MineralDatabaseSystem(ZSAPS2.O),andnineanomaliesofleadmineralsweredelineatedintheSon~imetallogenicsubbelt,comprising3GradeIIanomaliesand6GradeIIanomalies.TheheaWmineralassemblageintheseanomaliesisrelativelysimple.Leadminerals,suchasgalena,cerussite,leadalum,pyromorphite,
6、andnativelead,constitutethemainminerals,whichareassociatedwithcopperminerals(malachite,chalcocite,nativecopper,cuprite,etc.)andminorzincminerals(sphalerite,smithsonite,etc.),cinnabar,realgar,orpiment,nativegold,etc.TheanomaliesmainlyoccurinLowerPaleozoicCambriancarbonate
7、strata.Acomparisonwithmineralas—semblagesoftheexistingorespotsshowsthattheanomaliesarecausedbytheCambriancarbonateMVTlead—zincdeposits,andthisfindingissignificantforore—prospectingworkinthisarea.Keywords:leadminerals;heawmineralanomaly;LowerPaleozoic;MVTdeposit;Songjimet
8、allogenicsubbelt;westHenanmetaUo—genicbelt自然重砂測(cè)量在較早期找礦勘查中曾起到了砂測(cè)量成為中國(guó)20世紀(jì)區(qū)域地質(zhì)礦產(chǎn)調(diào)查的重要獨(dú)特的重要作用,中國(guó)地質(zhì)界的前輩們采用這