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Application of PHREEQC on Analysis of the Genesis of CO_2-Rich Cold Mineral Springs in Wudalianchi

XU Dan(School of Environmental Studies,China University of Geosciences,Wuhan 430074,Hubei)  
The paper analyzed the hydrogeological genesis of springs and used hydrogeochemical simulated software PHREEQC to do a hydrogeochemical simulation.It's considered that magmatic activity formed a large quantity of carbon dioxide,mixed with logical groundwater in deep faults,strong ability to dissolve.The water coursed the mineral in granitic diorite such as feldspars,mica and hornblende partial or complete dissolved,and the substances dissolved into the water formed mineral components.During the rising of the hypogene minerals formed by dissolve granitic diorite,coverged at the intersection of multilevel deep faults.In the process of moved along faults mixed with shallow groundwater continuously,after mixing exposed surface forming mineral springs.Most part of spring was from the shallow groundwater.
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