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1、1000-0569/1999/015(03)-0475-83ActaPetrologicaSinica岩石学报内蒙古柴胡栏子金矿田燕山期岩浆岩与金矿床122333杨忆佘宏全徐贵忠郑德学傅东才崔才1.中国科技大学研究生院(北京),北京100039;2.中国科学院地质研究所,北京100029;3.内蒙古赤峰市柴胡栏子金矿,内蒙古赤峰024039;1.GraduateSchool(Beijing)USTC,Beijing100039;2.InstitudeofGeology,ChineseAcademyofScienc
2、es,Beijing100029;3.ChuhulanziGoldDeposit,ChifengCity,InnerMongolia,Chifeng024039.1998-06-18收稿,1998-10-20改回.YangYi,SheHongquan,XuGuizhong,ZhengDexue,FuDongcaiandCuiCai.1999.YanshanianmagmaticrocksandgolddepositsofChaihulanzigoldfield,InnerMongolia.ActaPetrolog
3、icaSinica,15(3):475～483AbstractThecharacteristicsofthemagmaticactivity,metallogenyofChaihulanzigolddepositandthetectonicenviron-mentfortheformationofYanshanianmagmaticrocksandgolddepositshavebeendiscussed.Thestudyonthepetrographicfacies,petrochemistry,rareear
4、thelementsandtraceelementsindicatesthatthemagmaticrocksassociationinChaihulanzigoldfieldbelongstomobilecontinentalmargin.Itisindicatedthatthegolddepositsareformedatintermediatetemperature(180℃～290℃)bythermometeroffluidinclusions,havingastableanddeepsourceforo
5、re-formingmaterialbythenarrow34variationscopeofsulphurisotopic(S=3.1‰～7.8‰).Hydrogenandoxygenisotopicdatasuggestthattheore-formingfluidismainlyfrommagmaandjoinedwithmeteorologicalwater.Themagmaticrocksandgoldoresshowsimilarnormalizedchondritepatterns.Allofth
6、efeaturesshowthatthegoldmineralizationismainlyrelatedtomagmaticactivity.TheintensetectonicandmagmaticactivityduringYanshanianmovementtriggeredthemobilization,migrationandenrichmentofgoldinthemetamorphosedrocksofArcheangroupandresultedintheformationofgolddepos
7、itsofdifferentscales.Inthenorthdistrict,thegolddepositwhosegenesisbelongstoalteredrocktypeismainlyrelatedtodiorite.InWangfudistrict,thequartz-vein-typegolddepositiscloselyrelatedtothedioriteporphyrybesideit.Themagmaticactivityprovidedtheheatandthemostpartofhy
8、drothermalfluidsfortheformationofthedeposits;itisalsothecarrierforthemigrationandmobilizationofminerogeneticmaterials.Thegolddepositsintheareabelongtomesothermaloredeposit.KeywordsGolddep
