Isotopic composition of noble gases in geothermal fluids of the Krušné Hory Mts., Czechoslovakia, and the nature of the local geothermal anomaly

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doi: 10.1016/0016-7037(85)90164-4
Authors:Polyak, B. G.; Prasolov, E. M.; Čermák, V.; Verkhovskiy, A. B.
Author Affiliations:Primary:
USSR Acad. Sci., Geol. Inst., Moscow, USSR
Other:
All Union Oil Sci. and Prospect. Inst., USSR
Czech. Acad. Sci., Geophys. Inst., Czechoslovakia
Volume Title:Geochimica et Cosmochimica Acta
Source:Geochimica et Cosmochimica Acta, 49(3), p.695-699. Publisher: Pergamon, Oxford, International. ISSN: 0016-7037
Publication Date:1985
Note:In English. 29 refs.; illus. incl. 3 tables, sketch map
Summary:The contents and isotopic composition of all noble gases in the fluids from two localities (Karlovy Vary and Frantiskovy Lazne) in W Czechoslovakia are given. The data show: 1) atmospheric Ne, Ar, Kr and Xe, which indicates meteoric recharge; 2) excess He, attributed to radiogenic contributions; 3) a small excess of Ne, but the data shed no light on its origin. Even though there is no evidence of any juvenile component in these mineral waters, part of the dissolved He is believed to be of deep (mantle) origin. Correlation between the 3He/4He ratio and heat flow has been reported in the literature, the new data enabled a direct test of this relationship and proved its validity. The combined interpretation of the heat flow and isotopic composition shows that the local heat flow anomaly in the Krusne Hory graben is of deep origin and was produced by the mass outflow which occurred during Alpine activation of the Bohemian Massif. (Authors' abstract) [C.M.B.H.]
Subjects:Ar-40/Ar-36; Argon; Chemical composition; Geochemistry; Geothermal gradient; Geothermal systems; Ground water; He-4/He-3; Heat flow; Helium; Isotopes; Krypton; Neon; Noble gases; Stable isotopes; Surveys; Tectonics; Thermal waters; Xe-136/Xe-132; Xenon; Bohemia; Bohemian Massif; Central Europe; Czech Erzgebirge; Czech Republic; Erzgebirge; Europe; Karlovy Vary Czech Republic; Alphine Orogeny; Czechoslovakia; Frantiskovy Lazne; Karlovy Vary Czechoslovakia; Kr-86-Kr-84; Kr-86/Kr-80; Ne-23/Ne-20; Ratios; Xe-136/Xe-128
Abstract Numbers:86M/0730
Record ID:1985049617
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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