Investigation of the Boundary between Abderaz and Kalat Formations Based on Calcareous Nannofossils in West Kopet-Dagh (NE IRAN)
نویسندگان
چکیده
منابع مشابه
Calcareous nannofossils from chalky limestone intervals of the Abderaz Formation in the Kopet Dagh range, NE Iran
A biostratigraphic study based on calcareous nannofossils was performed on the chalky limestone from the Abderaz Formation in the Mozduran section (Kopet Dagh basin, NE Iran). Semiquantitative estimates of total nannofossil and single species abundances showed that calcareous nannofossil assemblages are common and their preservation is good. In this study37species have been identified in chalky...
متن کاملOn certain Neocomian – Aptian calcareous algae in the West of Kopet Dagh (NE-Iran) – Systematics and compared biogeography, focusing on Dasycladales
In Western Kopet Dagh, the lower Cretaceous carbonate series contains distinctive assemblages of calcareous algae, chiefly Dasycladales which are primarily studied in this work. Based on the significant presence of certain species, the Zard Formation, assigned to the Valanginian and, in its upper part, to the Hauterivian or base of the Barremian, is subdivided into two intervals, respectively A...
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15 صفحه اولbiostratigraphy and paleaoecology of the lower boundary of neyzar formation based on calcareous nannofossils in dobaradar, kalat and chahchaheh sections
in present study, diversity and relative abundance of calcareous nannofossils of the boundary between abtalkh and neyzar formations in dobaradar, kalat and chahchaheh sections were studied. taxonomical studies of calcareous nannofossils in the studied areas led to identification of 24 species in dobaradar, 27 species in kalat and 32 species in chahchaheh sections. based on identified nannofossi...
متن کاملNannostratigraphy and paleoenvironmental study of the lower boundary of the Kalat Formation in East and West of Kopeh- Dagh, Northeast Iran
This study presents the nannostratigraphy and nannofossil events in the lower boundary of Kalat Formation in the East and West of the Kopeh- Dagh basin. The Kalat Formation comprises of coarse grained detritus limestone with subordinate sandstone intercalations. In the current study, six sections have been chosen in the East and West of the basin which are as follow: Dobaradar section, Kalat se...
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ژورنال
عنوان ژورنال: Open Journal of Geology
سال: 2013
ISSN: 2161-7570,2161-7589
DOI: 10.4236/ojg.2013.33021