A SURVEY OF THE THERMODYNAMIC OF EVAPORATE SALTS IN ONE OF THE YAZD PLAYAS BASED ON A GROUND SAMPLING AND REMOTE SENSING

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AKHAVAN GHALIBAF M.

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Paper Information

Journal: Iranian Journal of Crystallography and Mineralogy Year:2008 | Volume:15 | Issue:2 Page(s): 401-412

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Title

A SURVEY OF THE THERMODYNAMIC OF EVAPORATE SALTS IN ONE OF THE YAZD PLAYAS BASED ON A GROUND SAMPLING AND REMOTE SENSING

Author(s)

AKHAVAN GHALIBAF M. | Issue Writer Certificate

Keywords

EVAPORATE SALTSQ3

THERMODYNAMICQ2

SULFATE SALINITY TYPEQ3

Abstract

This study was done in the wet marginal part of the Siahkooh playa (Kevir) in Yazd, Iran, which is located in the northwest of Ardakan. The abundance of Ca and S04 iones led to gypsum crystallization near the water table in the soil. From depth to the soil surface, the CaCO3- CaSO4 , 2H2O -NaCl-H2O-PCO2 soil and water system change to CaSO4, 2H2ONa2SO4- NaCl-H2O. From water table (100 cm under soil surface) to the soil surface, ionic power was decreased and activity coefficient was in crased respectively. Therefore, near ground table, gypsum form and high concentration of Ca iones from gypsum lead to low amounts of exchangeable Na. This influence has been continued up to soil surface to achieve a relative balance. Replacement of Na with Ca on the exchangeable surfaces of soil and existance of SO4 iones formed NaSO4 inerals. The precipitation of 1800ton per hectar natrium salts (sulfatic & coloridic) was estimated with respect to the mean of annual evaporation (roughly 900mm) in the studied site. The result also showed that the seventh bands of Landsat 7 are more important to differentiate between sulfate and chloride salts as well as sodium and calcium salts.

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References

وضعیت ژئومرفولوژی شهر آب (مزد آباد)

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APA: Copy

AKHAVAN GHALIBAF, M.,. (2008). A SURVEY OF THE THERMODYNAMIC OF EVAPORATE SALTS IN ONE OF THE YAZD PLAYAS BASED ON A GROUND SAMPLING AND REMOTE SENSING. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 15(2), 401-412. SID. https://sid.ir/paper/3995/en

Vancouver: Copy

AKHAVAN GHALIBAF M.. A SURVEY OF THE THERMODYNAMIC OF EVAPORATE SALTS IN ONE OF THE YAZD PLAYAS BASED ON A GROUND SAMPLING AND REMOTE SENSING. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2008;15(2):401-412. Available from: https://sid.ir/paper/3995/en

IEEE: Copy

M. AKHAVAN GHALIBAF, an, “A SURVEY OF THE THERMODYNAMIC OF EVAPORATE SALTS IN ONE OF THE YAZD PLAYAS BASED ON A GROUND SAMPLING AND REMOTE SENSING,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 15, no. 2, pp. 401–412, 2008, [Online]. Available: https://sid.ir/paper/3995/en

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