Writers : Ghavicjel- Syooki,M.; Khosravi,M. E.
Refference : Geosciences Scientific Quarterly Journal,No.:14,P.:2
Publishing Year : 1373

Abstract :

A thick lower Paleozoic - succession is well- developed at Tang.e- Zakeen in Kuh-e- Faraghan, approximately 103 K m northern Bandar Abbas city. The successIon has been visited by several geologists in the past decades. However neither a complete stratigraphic column nor a detailed study has been done on this succession. Thus, it was measured and sampled for detaited study by author and M. E. Khosravl, in 1985. This succession is 807m Thick and mainly consists of clastic sediments and subordinate limestones. So far, this successics, has been used to be called `Sllurian Shales'. In this study, the use of Silurlan Shales is dropped, Insl$ad, the Seyahou and Sarchahan formations are Introduced, respectively for the upper Ordovician and lower Silurian of this succession In the Zagros basin.
The name of Seyahou formation originates from the Seyahou village where is located approximately 80 K m northern Bandar Abbas city. The type section of this formation is at Tang-e- Zakeen in Kuh-e- Faraghan, where is located 23 K m northern Seyahou village. At type locality, the whole thickness of lower Paleozoic succession is 807 m that from this thIckness, 741 m belongs to the Seyahou formation and the rest is the Sarchahan formation. The Seyahou formation has also surface exposure at Kuh-e- Surmeh and Zard- Kuh, respectively with a thickness of 58m and 70m. Ukewise, thIs formation is present In some exploration wells such as Kuh-e- Siah no. 1, Zlrreh no.1 and Kabir- Kuh no.1, Darang no. 1, respectively with a thickness of 117m,156m,100m,and 250m.

Subject List : Stratigraphy