Palynostratigraphy of the Dalichai Formation at Talu section (NE Damghan) based on Dinoflagellate cysts

Boroumand, Z.; Ghasemi- Nejad, E.; Majidifard, M. R.

doi:10.22071/gsj.2013.53825

Document Type : Original Research Paper

Authors

¹ M.SC., Applied Geological Research Center of Iran, Karj, Iran

² Professor, School of Geology, College of Science, University of Tehran, Tehran, Iran

³ Assistant Professor, Research Institute for Earth Sciences, Geological Survey of Iran, Tehran, Iran

https://doi.org/10.22071/gsj.2013.53825

Abstract

The Dalichai Formation at Talu section, 24 kilometers NE of Damghan is studied Palynologically. The Middle Jurassic sediments with a thickness of 168 meters in this section contain grey to green marl and grey marly limestone. A total of 35 samples were collected systematically and 200 palynological sildes were prepared. Forty nine species of dinoflagellate cysts belonging to 30 genera were identified. A few fungal spores and foraminiferal test lining and spores and pollen grain were also recorded. Although, dinoflagellate species are abundant but all the species recorded were concentrated in lower parts of the section (0-110 meters). Two palynozones were identified; Cribroperidinium crispum Total Range Palynozone (Ccr), Dichadogonyaulax sellwoodii Interval palynozone (Dse). A local palynozoneof Ctenidodinium combazii/Ctenidodinium ornatum ornatum Acme Zone were also established in the succession. An age of Bajocian – Late Callovian was proposed for the succession studied.

Keywords

20.1001.1.10237429.1392.22.87.3.9

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Scientific Quarterly Journal of Geosciences

Palynostratigraphy of the Dalichai Formation at Talu section (NE Damghan) based on Dinoflagellate cysts

References

References

Volume 22, Issue 87
December 2013
Pages 3-8

Palynostratigraphy of the Dalichai Formation at Talu section (NE Damghan) based on Dinoflagellate cysts

References

References

Volume 22, Issue 87December 2013Pages 3-8

Volume 22, Issue 87
December 2013
Pages 3-8