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:100820244(2003)04200012101,1,1,1,2(1.,100037;2.,010020):,,,,(),,,:;;;;:P618.51:A:2003203231;:2003205231:(40073015);(K1.3.32):(1956),,,,,,,(),,()(),[1,2],500km20km,,,,,11.1135km,[35],()13km,(1),,,,,[1,6,7],315km,01030115km,,,,,,,,,12003314Vol.31,No.4,2003GEOLOGY2GEOCHEMISTRY©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1)K2Ar3064Ma2895Ma,(FosterD,2002,)1Fig.1.GeologicalsketchmapoftheXiaoxigonggolddeposit,theinsertshowingitslocality.1.;2.2;3.;4.;5.;6.;7.;8.;9.;10.;.;1.;2.;(a).;(b).1.2,24,,,,,,2000m,1020m,4,,50150m,0183m,50150m,(115311)10-63500m,50200m,4,,100200m,01955m,75138m,(115215)10-6,7000m,200500m,41,,25425m,01341614m,25455m,(25)10-6,,,,[1],K2Ar2844Ma22003©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(),,,,850880,730780,22.12()234S112211(117)412513(418),34S6171217(1012),34S13141518(1413)119215(213)234S,,34S,1Table1.SulfurisotopiccompositionofsulfidesfromtheMid2Proterozoicfelsicschists,HercyniangranitoidsandrelatedgoldoresintheXiaoxigonggolddistrict34S/2XXG21221.2XXG22221.6XXG23222.1XXG24221.92XXG2522224.2XXG2622225.0XXG2722224.7XXG2822225.3(+)XXG29+6.7XXG210+8.4XXG211+9.3XXG21212.5XXG21311.9XXG2149.9XXG21512.7XXG21613.5XXG21714.6XXG21815.8XXG21913.4XXG2202.5XXG2212.5XXG2221.9:(UniversityofTasimania)2.218O917213193(11173)616413105(9150),18O1210314129(13142)518814124(10118),,,18O,234:.().2003.©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[8]18OH2O(2),18OH2O1186105(3189)-21515102(0159)18OH2O41507159(6141)2.8710.50(6.81)18OH2O,,18OH2O,22,,,18OH2O,18O[9]2Table2.Oxygenandhydrogenisotopiccompositionofthequartzseparates/(1)18O/18OH2O/(2)D/2XXG2990128510.93.3-115.9XXG2990230012.55.3-103.02XXG2990328013.96.1-90.6XXG299042799.71.8-115.0XXG2990527011.63.1-109.4XXG299062486.6-2.5-83.6XXG299072748.50.4-82.0XXG299082689.31.0-83.7XXG2990927613.15.0-82.5XXG299102549.9-1.0-94.6XXG2991131514.37.6-75.4XXG2991230013.26.0-76.5XXG2991332014.27.6-82.4XXG2991429012.04.5-97.8XXG299155005.92.9-85.0XXG299165008.65.6-75.2XXG2991745012.08.3-72.2XXG2991845014.210.5-66.4XXG29920-12.4(3)-109.2XXG29921-11.8(3)-102.6XXG29922-10.9(3)-96.9:(UniversityofTasimania);(1);(2)1000ln=3105106/T2-2109[8];(3)D=18O+10[9],D-11519-9016(-10617)-9416-8210(-8513)D-9718-7514(-8310)-8510-6614(-7417),D-100,D-70-9018OH2O2D,,(),,,()(2),2/[9],,(2)[9],42003©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.()36()223206Pb/204Pb181010181722(181443)191178191367(191245);207Pb/204Pb151583151744(151626)151631151678(151659);208Pb/204Pb381028381836(381343)381883391027(391058)206Pb/204Pb181233181355(181269)181289191776(181783);207Pb/204Pb151544151678(151584)151572151722(151779);208Pb/204Pb381111381178(381112)381372401038(381863)3Table31Leadisotopiccompositionandrelativeratiosofthesulfide,K2feldsparandwhole2rocksamplesfromtheHercyniangranitoids,MiddleProterozoicmetamorphicwallrocksandgoldoresatXiaoxigong206Pb/204Pb207Pb/204Pb208Pb/204Pb2XXG2990118.25915.59838.2569.7XXG2990218.24915.58338.0279.6XXG2990318.25015.55838.17810.1XXG2990418.34115.63138.3339.82XXG2990518.71615.58538.3329.6XXG2990618.55915.62538.4079.8XXG2990718.61215.60438.8369.7XXG2990818.46015.58338.2549.6XXG2990918,70115.66138.3679.9XXG2991018.72215.64938.4229.8XXG2991118.51115.60838.3449.7XXG2991218.64415.63938.3559.6XXG2991319.17915.63138.8839.7XXG2991419.36715.67139.0229.8XXG2991519.22215.66339.0279.8XXG2991619.27815.65538.9559.8XXG2991719.17815.67839.4009.9XXG2991818.29315.54438.0499.5XXG2991918.43315.67838.11210.0XXG2992018.29315.54638.1119.5XXG2992118.35515.56938.1789.6XXG2992219.77615.70840.0389.9XXG2992318.69015.57638.5039.5XXG2992418.40215.68338.74010.1XXG2992518.28915.57238.3729.6XXG2992618.43615.70538.66410.1XXG2992718.35515.66138.4899.9XXG2992818.98915.71138.95510.0XXG2992919.02215.66339.0279.8XXG2993019.08715.72838.97810.1:(ANU)54:©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(3a),24(22),4(22)(2),,()(3a)Ludwig[10]y=016599x+31519,[11]291Ma3159Ma,27()3()4(13),(),y=011819x+12123,33Ma2910Ma,2,(),206Pb,XXG222206Pb/204Pb191776(3a,3),208Pb/204Pb2206Pb/204Pb,208Pb(3b),,3(a).207Pb/204Pb2206Pb/204Pb;(b).208Pb/204Pb2206Pb/204PbFig131Leadisotopeplotsofthesulfide,K2feldsparandwhole2rocksamplesfromtheMiddleProterozoicmetamorphicrocks,HercyniangranitoidsandrelatedgoldoresfromtheXiaoxigonggolddistrict11.;2.;3.;4.;5.33112234S117418,(315)(4)[1215],34S1413213,,,34S1012,,,,,,,34S(),34SS,,34S62003©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1),,,34S(),,(22),,18OH2ODH2O,,[1517]18OH2O2DH2O(2),DH2O,,DH2O,,DH2O,,,2,,,DH2O[17],18O(MWL),,2,2,2(,),,,,,,,KNaSiCuPbZnAuAg,(,,),312,207Pb/204Pb-206Pb/204Pb(3a),2(),2206Pb/204Pb=181