Abstract
Palynological investigation about 120 samples from 460m thick outcrop section of late Paleocene to early Oligocene of the Pabdeh Formation, southwestern in Iran yield 55 species of dinoflagellate results to defined 7 biozone. The quantities of marine palynomorph elements are indicated of open marine at this time, but a low increase number of spore and pollen in some of the sample indicated the condition for growth forest are suitable that consequent increase the harm climate and humidity. The species are common with different latitude and most of them cosmopolitan. Thermal maturity index measurement indicates oil prone in most of the samples. Keywords : Pabdeh Formation; Dinoflagellatecyst; Paleogene; Palynostratigraphy; Thermalmaturity.
Highlights
The first studies on fossil dinoflagellates from Western Iran were made by Zahiryin 1982 (Zahiri, 1982)
Later on more studies conducted on palynostratigraphy of some parts of the Zagros basin (e.g. Ghasemi-Nejad et al.,2006, Rabbani et al, 2013)
As the Pabdeh Formation which is lithologically made up of shale, calcareous shale and limestone, is a relatively known source rock in the Zagros basin, palynological studies on these strata could help to establish a stratigraphic framework for the formation to be further investigated in terms of potential for petroleum generation
Summary
The first studies on fossil dinoflagellates from Western Iran were made by Zahiryin 1982 (Zahiri, 1982). Previous Studies: There is afew record of dinoflagellate cysts from the Pabdeh Formation of the Zagros basin in the published literature (e.g. Rabbani et al, 2013). Based on the composition of the assemblages recorded seven dinoflagellate cyst zones are differentiated ranging in age from late Paleocene to early Oligocene.
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