| 热水溶液地球化学 |
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| 引用本文： | 曾贻善.热水溶液地球化学[J].地学前缘,1996,3(3):89-95. |
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| 作者姓名： | 曾贻善 |
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| 作者单位： | 北京大学地质系 |
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| 摘 要： | 概述了热水溶液地球化学的主要研究内容和近年来在实验和理论研究方面的进展，包括高温高压下水的热力学性质、状态方程式、介电常数、电导率和电离平衡；ＮａＣｌ－ＣＯ２－Ｈ２Ｏ体系及其边界体系（ＮａＣｌ－Ｈ２Ｏ和ＣＯ２－Ｈ２Ｏ）的相关系、热力学性质和状态方程式，特别是利用人工流体包裹体技术和分子动力学模拟取得的新成果；高温高压电解质稀水溶液的电导测定；以ＨＫＦ模型为基础，热水溶液中不同物种的标准偏摩尔热力学性质和高温高压有关物理化学参数的估算；热水溶液中的物种形成（热液流体中的矿物溶解度测定、电势测量和谱学研究）；水和热水溶液结构的红外和拉曼谱学研究；水和热水溶液的传输性质（粘度和导热系数）。
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| 关 键 词： | 热水溶液 相关系 电解质溶液 化学元素的物种形成 热力学和传输性质 |
GEOCHEMISTRY OF HYDROTHERMAL SOLUTIONS |
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| Zeng Yishan.GEOCHEMISTRY OF HYDROTHERMAL SOLUTIONS[J].Earth Science Frontiers,1996,3(3):89-95. |
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| Authors: | Zeng Yishan |
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| Abstract: | The geochemical aspects and their recent progresses in experimental and theoretical studies of hydrothermal solutions are briefly described: the thermodynamic properties, equation of state, dielectric constant, conductivity and dissociation equilibrium of water at high pressures and temperatures; the phase relations and equations of state for the NaCl CO 2 H 2O system and its component systems (NaCl H 2O and CO 2 H 2O), especially some new results obtained by synthetic fluid inclusion techniques and molecular dynamics simulation; the electrical conductances of dilute electrolyte solutions at elevated temperatures and pressures; the estimation of standard partial molal thermodynamic properties and relevant physicochemical parameters of various species in aqueous solutions at elevated temperatures and pressures based on the HKF model; speciation in hydrothermal solutions (mineral solubility determination, potentiometric and spectroscopic study of hydrothermal fluids); infrared absorption and Raman spectroscopic studies of the structure of water and hydrothermal solutions; the transport properties (viscosity and heat conductivity) of hydrothermal solutions. |
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| Keywords: | hydrothermal solution phase relation electrolyte aqueous solution speciation of chemical elements thermodynamic and transport properties |
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