Preliminary Gas and Isotope Geochemistry in the Rehai Geothermal Field, P.R. China

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Based on gas and sulphur isotopic composition, two types of steam in Rehai geothermal field are identified. One is with higher CO{sub 2} and H{sub 2}S concentration, the {delta}{sup 34}S of H{sub 2}S is in the range 2.49{per_thousand} to -1.04{per_thousand} (vs CDT), from which the H{sub 2}S-temperature is over than 250 C. The other is with lower CO{sub 2} and H{sub 2}S concentration, the {delta}{sup 34}S of H{sub 2}S is in the range -4.0{per_thousand} to -8.36{per_thousand}, from which the H{sub 2}S- and H{sub 2}-temperatures are 180 C-210 C, in good agreement with quartz temperature. The thermal water in the Rehai ... continued below

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P., Zhao & Z., Liao January 1, 1995.

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Based on gas and sulphur isotopic composition, two types of steam in Rehai geothermal field are identified. One is with higher CO{sub 2} and H{sub 2}S concentration, the {delta}{sup 34}S of H{sub 2}S is in the range 2.49{per_thousand} to -1.04{per_thousand} (vs CDT), from which the H{sub 2}S-temperature is over than 250 C. The other is with lower CO{sub 2} and H{sub 2}S concentration, the {delta}{sup 34}S of H{sub 2}S is in the range -4.0{per_thousand} to -8.36{per_thousand}, from which the H{sub 2}S- and H{sub 2}-temperatures are 180 C-210 C, in good agreement with quartz temperature. The thermal water in the Rehai field is of local meteoric origin. Maximum {delta}{sup 18}O-value shift is less than 2.0{per_thousand} (vs SMOW). Mixing is widespread and could be identified on isotope and solute chemistry.

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  • Report No.: GEO-PROC-95-02
  • Grant Number: None
  • DOI: 10.2172/895930 | External Link
  • Office of Scientific & Technical Information Report Number: 895930
  • Archival Resource Key: ark:/67531/metadc889647

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1995

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  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 9, 2016, 8:20 p.m.

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P., Zhao & Z., Liao. Preliminary Gas and Isotope Geochemistry in the Rehai Geothermal Field, P.R. China, report, January 1, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc889647/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.