Microfacies analysis and depositional environment of the Qom Formation in the Jazeh area (South of Kashan)

رخساره‌های رسوبی

مقاله 4، دوره 2، شماره 1، شهریور 1388   

نوع مقاله: بدون عنوان

شناسه دیجیتال (DOI): 10.22067/sed.facies.v2i1.823

نویسنده

محمدی محمدی^*

چکیده

Sediments of the Qom Formation in the Jazeh area, south of Kashan, are Ropelian - Chatian in age and have a thickness of 299 meters. It consists of medium to thick bedded and massive limestone, shale and marl. They overlie on the Eocene volcanic rocks with unconformity and its upper boundary is covered by alluvium. 230 samples have been collected and thin section was prepared. Based on petrographical studies of depositional textures, and fauna, 10 microfacies have been identified that were deposited in open marine and lagoon subenvironments. Based on microfacies analysis and field observation, Qom Formation in the study area is deposited on an open shelf.

کلیدواژه‌ها

university of Isfahan؛ department of geology