Relationship Between The Temperature And Hydiothermal Activities In The Lalejin, Ghahavand and Chardoli area

Category Environmetal Geology
Group GSI.IR
Location The 25 Symposium of Geosciences
Author Amiri, M-H.Ali rezai- Gh-Asadian
Holding Date 02 July 2007



     In the Lalejin, Ghahavand and Chardoli area that are located in the north of Hamedan province, some of water wells are gaseous and their equipments are corroded during a short period. So, annually the Farmers are sustained a very loss. Whenas, The heat can to catalyze the corrosion process. therefore, It was endeavoured to evaluate the existence or absence of a heat source and  its provenance in these area. For this aim, amount of temperature, depth of wells, and Geographical characteristics of ۲۹ gaseous well ring was recorded by field investigation with help of G.P.S apparatus and thermometer. Furthermore, ۱۶ samples of well´s water were taken and analyzed in the laboratory. Then, amount of free carbon dioxide was estimated by using of standard  Nomographs. data of temperature, depth, free carbon dioxide and correlations of them were evaluated by using of SPSS program. . High amount of free carbon dioxide shows that gaseous hydrothermal solutions are active in these area. Results of different statistic tests that was carried out in this study show that there is a significant difference between awerage of water temperature in these area, that a part of it is arisen of temperature gradient and  its other part is arisen of semihot internal activities of earth.


Keywords: Temperature, Groundwater, Hydrothermal solutions, Gaseous wells, Hamedan.                       


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