| A Study on the Dissolution Kinetics of Basalt—Water Interaction under Different pH Conditions I：Release of Elements and pH Neutralization Effect |
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| 引用本文： | 党志,侯英.A Study on the Dissolution Kinetics of Basalt—Water Interaction under Different pH Conditions I：Release of Elements and pH Neutralization Effect[J].中国地球化学学报,1993,12(2):183-191. |
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| 作者姓名： | 党志 侯英 |
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| 作者单位： | [1]InstituteofGeochemistry,AcademiaSinica,Guiyang550002 [2]InstituteofGeochemistry,AcademiaSinica,Guiyang55 |
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| 摘 要： | Experimental research on the chemical weathering of alkaline-olivine basalt from Huangyi Mountain,Kuandain County,Liaoning.Province and olivine basalt from Dayangke,Mingxi County,Fujian Province has shown that the acidity of the solution tends to become neutral regardless of what the acidity of the starting solution would be during basalt0-water interaction.We call this phenome-non“pH neutralized Effect”.The dissolved species in the solution were determined and unreacted and reacted sample-surface chemical components involved or uninvolved in reaction were analyzed using X-ray photoelectron spectroscopy(XPS).The results revealed two different mechanisms of dissolution of basalt in acidic and basic solutions.
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| 关 键 词： | 玄武岩 水 铁 氧化反应 PH值 溶解动力学 中和反应 |
A study on the dissolution kinetics of basalt-water interaction under different pH conditions I: Release of elements and pH neutralization effect |
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| Dang Zhi,Hou Ying.A study on the dissolution kinetics of basalt-water interaction under different pH conditions I: Release of elements and pH neutralization effect[J].Chinese Journal of Geochemistry,1993,12(2):183-191. |
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| Authors: | Dang Zhi Hou Ying |
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| Institution: | (1) Academia Sinica, Institute of Geochemistry, Guiyang, 550002 Guizhou |
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| Abstract: | Experimental research on the chemical weathering of alkalineolivine basalt from Huangyi Mountain, Kuandain County, Liaoning
Province and olivine basalt from Dayangke, Mingxi County, Fujian Province has shown that the acidity of the solution tends
to become neutral regardless of what the acidity of the starting solution would be during basaltwater interaction. We call
this phenomenon “pH neutralized effect”. The dissolved species in the solution were determined and unreacted and reacted samplesurface
chemical components involved or uninvolved in reaction were analyzed using X-ray photoelectron spectroscopy (XPS). The results
revealed two different mechanisms of dissolution of basalt in acidic and basic solutions. |
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| Keywords: | basalt water iron oxidation-reduction reaction |
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