吉林省海沟石英脉型金矿床流体包裹体特征及地质意义_张松.pdf

1000-0569/2011/027(05)-1287-98 ActaPetrologicaSinica　岩石 学报 吉林省海沟石英脉型金矿床流体包裹体特征及 ＊ 地质意义 张松 1, 2 　曾庆栋 1＊＊　刘建明 1 　汪在聪 1, 2 　王永彬 1, 2 　任德奎 3　高吉河 3 1, 2 1＊＊ 1 1, 2 1, 2 3 3 ZHANGSong , ZENGQingDong , LIUJianMing, WANGZaiCong , WANGYongBin , RENDeKuiandGAOJiHe 1.中国科学院地质与地球物理研究所 矿产资源研究重点实验室 , 北京 　100029 2.中国科学院研究生院 , 北京 　 100049 3.吉林海沟黄金矿业有限责任公司 , 吉林 　133600 1.KeyLaboratoryofMineralResources, InstituteofGeologyandGeophysics, ChineseAcademyofSciences, Beijing100029, China 2.GraduateUniversityofChineseAcademyofSciences, Beijing100049, China 3.ChinaGoldGroupHaigouMiningCo., LTD., Jilin133600, China 2010-11-25 收稿 , 2011-02-14 改回 . ZhangS, ZengQD, LiuJM, WangZC, WangYB, RenDK andGaoJH.2011.Thecharacteristicsanditsgeological significanceoffluidinclusionsinHaigoulodegolddeposit, JilinProvince.ActaPetrologicaSinica, 27(5):1287 -1298 Abstract　　Haigougolddeposit, locatedinthesoutheastoftheJiapigou-HaigougoldbeltinJilinProvince, isatypicallodegold deposit.ItishostedbyHecyniangranitoidcomplex, andconsistsofgold-bearingquartzveins.Itcanbedevidedintofourore-forming stages:I, quartz-K-feldspar;II, quartz-pyrites, occasionallywithgold;III, polymetallicsulfides-quartz-gold;andIV, carbonate- quartz-pyritestage.Fourtypesoffluidinclusionsareidentifiedinauriferousquartzveins:(1)H2 O-CO2 -NaClinclusions;(2)CO2 inclusions;(3)H2O-NaClinclusions;(4)afewhigh-salinityinclusionswithdaughtermineral.Homogenizationtemperatureofthe inclusionsinthethreestagesarerangefrom 227 ～ 497℃ (IIstage), 189 ～ 427℃ (IIIstage), 130 ～ 267℃ (IVstage), andsalinity are0.53% ～ 10.23% NaCleqv, 0.35% ～ 9.23% NaCleqv, 0.18% ～ 3.27% NaCleqvrespectively.InclusionswithvariableCO2 phaseratiowithinsameclustershavingsimilarhomogenizationtemperatureshowsthatimmiscibilityiscommon.Thehomoge