سال انتشار: ۱۳۸۷

محل انتشار: همایش بین المللی ژئولیت ایران

تعداد صفحات: ۵

نویسنده(ها):

Kamaladdin Bazargani-Guilani – Department of Geology, University of Tehran, Tehran 14155-6455, Iran
Mohammad Sadegh Rabbani – Department of Chemistry, University of Tehran, Tehran 14155-6455, Iran
Parisa Youssefey – Department of Geology, University of Tehran, Tehran 14155-6455, Iran

چکیده:

The minerals identified in the Sahr-e-Rey region, in order of their relative time of formations, are
primary calcite, tetranatrolite, analcime, natrolite, mesolite, stilbite, secondary calcite and quartz. The
formation of zeolites begins with a sodium zeolite of low Si/Al ratio content. They continue to form with
gradual increase of calcium and Si/Al ratio contents and terminate with secondary calcite or sometimes with
silica. There has been found some similarities between the sequence of formation of zeolites in amygdales
and veins of Shahr-e-Rey and Kuh-e-Aradeh. The analcime formula of the study region,
Na15.6Al15.2Si32.7O9610.6 H2O, shows that it has a hydrothermal origin