ریز دیرینه شناسی رسوبات کرتاسه زیرین در برش تیوان

The Tirgan Formation with the Early Cretaceous age with 84 m thickness is located continues on the ShurijehFormation also under the Sarcheshmeh Formation. In this article, according to the microscopic studies and investigations, 32 genuses and 34 specious of the benthic foraminifera as well as 9 genus and 9 specious are determined. According to these studies the age of the Tirgan Formation in the Tivan stratigraphic section can beconsider as the Early Cretaceous (Barremian-Early Aptian).

کلیدواژه ها:

Barremian-Early Aptian ، Tirgan Formation ، Early Cretaceous ، Kopet-dagh