《山东七宝山隐爆角砾岩型金铜矿床含矿蚀变斑岩石英颗粒中高温高盐度沸腾包裹体的发现及其意义》.pdf
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10000569/2010/026(11)331926 ActaPetrologicaSinica 岩石学报
山东七宝山隐爆角砾岩型金铜矿床含矿蚀变斑岩石英
颗粒中高温高盐度沸腾包裹体的发现及其意义
1 1 2 3
孙思 李永刚 张小允 刘洪举
1 1 2 3
SUNSi,LIYongGang,ZHANGXiaoYunandLIUHongJu
1中国科学院地质与地球物理研究所岩石圈演化国家重点实验室,北京 100029
2山东省五连县宝山矿业公司,五莲 262321
3山东省第四地质矿产勘查院,潍坊 261021
1StateKeyLaboratoryofLithosphericEvolution,InstituteofGeologyandGeophysics,ChineseAcademyofSciences,Beijing100029,China
2BaoshanMineralCorporationinWulianCountyofShandongProvince,Wulian262321,China
3No4ExplorationInstituteofGeologyandMineralResources,Weifang261021,China
20100812收稿,20100914改回
SunS,LiYG,ZhangXYandLiuHJ2010Boilingfluidinclusionsofhightemperatureandhighsalinityinthequartz
grainsinalteredporphyryfromtheAuCubearingcryptoexplosionbrecciapipeatQibaoshan,ShandongProvinceandtheir
significanceActaPetrologicaSinica,26(11):3319-3326
Abstract TheAuCubearingcryptoexplosionbrecciapipeatQibaoshan,ShandongProvincewaspreviouslyconsideredtobean
epithermalhydrothermaldepositwithlowsalinityThisstudycarriedouttheinvestigationsonfluidinclusionsofthequartzgrainsin
alteredporphyryfromtheAuCubearingcryptoexplosionbrecciapipeOurresultsshowthatthequartzfromtheorebearingaltered
porphyrycontainsabundantboilingfluidinclusions,includingvariousdaughtermineralsbearingmultiphaseinclusionsThe
microtemperaturemeasurementontheseinclusionssuggeststhattheseinclusionshomogenizedatsimilartemperaturesinanarrow
range:374~404℃,andtheirsalinitycanbeashighas48%NaCleqvThelaserRamanspectrumandscanningelectronmicroscopy
energydispersivespectrumanalysisofthedaughtermineralsinthemultiphasefluidinclusionsdemonstratesthatbesideshalite,
hematite,barites,chalcopyriteandpyritearealsoubiquitousThequartzgrainsbearingboilingfluidinclusionswithhightemperature
andsalinityaremorelikelytoformduringrecrystallizationintheprocessofearlyorefluidactivitythantobethephenocrystofthe
porphyryTheseindicatethatinthedeepthereexistboilingflu
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