云南石屏喷珠池的气体地球化学特征
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摘要
喷珠池位于康滇构造带西南侧的石屏 异龙湖坝区 ,它所排放的大量气体以无机成因CO2 为主 (达91 5 9% )。3 He/ 4He值R =7 78× 10 8,R/Ra =0 0 6 ,4 He/ 2 0 Ne =417,表明其中大气成分少 ,属壳源CO2 泉气。喷珠池气体地球化学特征的研究对于该地区地热资源的开发利用和地震活动监测具有十分重要的意义。
Emission gases from Penzhu Pond located at Shiping Yilong lake area in southwestern Kangdian tectonic belt mainly consist of CO2 of inorganic origin (CO2 concentration up to 91.59%). The ratios of 3He/4He, R/Ra, 4He/20Ne are 7.78?0-8, 0.06, and 417 respectively, which indicated that the emission gases are from CO2 reservior in crust with less mixtures from the atmosphere. The geochemical characteristic studies of emission gases from Penzhu Pond are of significance for the future utilization of the heat resource, and for monitoring of earthquake from this area.
Emission gases from Penzhu Pond located at Shiping Yilong lake area in southwestern Kangdian tectonic belt mainly consist of CO2 of inorganic origin (CO2 concentration up to 91.59%). The ratios of 3He/4He, R/Ra, 4He/20Ne are 7.78?0-8, 0.06, and 417 respectively, which indicated that the emission gases are from CO2 reservior in crust with less mixtures from the atmosphere. The geochemical characteristic studies of emission gases from Penzhu Pond are of significance for the future utilization of the heat resource, and for monitoring of earthquake from this area.
引文
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[11] 徐青 .云南大地热流极其大地构造意义 [J] .大地构造与成矿学 ,1992 ,16( 3 ) :2 85 -2 99
[2 ] MartyB ,etal.Heliumisotopesinalpineregions[J] .Tectonophysics ,1992 ,2 0 6:71-78
[3 ] CraigH ,etal.HeliumIsotoperationsinYellowstoneandLassenParkvolcanicgases[J] .Geophys.Res .Letter 1978.5 ;897-90 0
[4] 徐永昌 ,等 幔源氦的工业储聚和郯庐大断裂带 [J] ,科学通报 ,1990 ,( 12 ) :93 2 -93 5
[5 ] 王先彬 ,等 地震区温泉气体的地球化学特征 [J] .中国科学 (B辑 ) ,1992 ,849-85 4
[6] 戴金星 ,等 中国东部无机成因气其气藏形成条件 [M] 北京 :科学出版社 ,1995
[7] GiggenbachWF .Carbon 13exchangebetweenCO2 andCH4undergeothermalconditions[J] .Geochim .Cosmochim .Acta ,1982 ,46:15 9-165
[8] BottigaY .Calculatedfractionationfactorsforcarbonandhydrogenisotopeexchanggeinthesystemcalcite carbon dioxide graphite methane hydrogen watervapour [J] .Geochim .Cosmochim .Acta ,1969,3 3 :49-64 ;1991 6:12 2 5 -14 1
[9] CutsaloLK ,etal.Carbonisotopefractioninhydrotherm .CH4andCO2[J] .Geokhimya ,1990 ,12 :10 77-1687
[10 ] JendenPD ,etal.OriginofnitrogennaturalgasesintheCaliforniaGreatValley :evidencefromhelium ,carbonandnitrogenisotoperations[J] .Geochim .Cosmochim .Acta ,1988,5 2 :85 1-861
[11] 徐青 .云南大地热流极其大地构造意义 [J] .大地构造与成矿学 ,1992 ,16( 3 ) :2 85 -2 99
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