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西藏水热地球化学的初步研究 总被引:4,自引:0,他引:4
在1973—1974年西藏地热考察中采集了热水样品400多个,气样24个,以及一大批泉华样品。在这些样品室内分析、鉴定基础上,对西藏水热地球化学的某些特点做初步讨论。 西藏热水的pH值和矿化度的总貌如图1、2所示。热水的pH值大多数属中偏碱性, 相似文献
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The solubility of Fe_2O_3 in dilute KOH and HClO_4 aqueous solutions was determined at 300℃ and 10 MPa. The analysis of the solubility data indicated that in neutral and alkaline hydrothermal solutions iron mostly existed as Fe(OH)_3~0 and Fe(OH)_4~-, and it was calculated that △G_(Fe(OH)_3~0)~0=-561.9±3.3kJ/mol, and △G_(Fe(OH)_4~0)~0=-662.7±5.0 kJ/mol at 300℃. According to the analysis on the previous experimental studies about the transporting form of iron, the existing form of iron in hydrothermal solutions is discussed in this paper. 相似文献
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