سال انتشار: ۱۳۸۷

محل انتشار: همایش بین المللی ژئولیت ایران

تعداد صفحات: ۶

نویسنده(ها):

Kamaladdin Bazargani-Gullanl – Department of Geology, University of Tehran, Tehran 14155-6455, Iran
Mohammad Sadegh Rabbani – Depanment of Chemistry, University of Tehran, Tehran 14155-6455, Iran
Mohammad Parchekani – Depanment of Chemistry, University of Tehran, Tehran 14155-6455, Iran

چکیده:

Volcanic rocks at the east Robat-Karim, 10 km south-west of Tehran, contain varieties of amygdale,
vein, veinlet and patchy zeolites. The identified zeolites are analcime, tetranatrolite, natrolite, stilbite,
scolecite, mesolite, laumontite, mordenite heulandite/clinoptilolite and phillipsite. Smectite, chlorite, opal,
quartz and calcite are usually accompanied with these zeolites. We report laumontite, phillipsite and
mordenite, for the first time, in amygdales in the Central Iran. Based on the evidences such as occurrences
oftetranatrolite, chlorite, veins and intense alteration of host rocks, chlorite coating of amygdales; it is
concluded that the zeolites are formed hydrothermally in the east Robat-Karim volcanic rocks.