Results 121 to 130 of about 654 (163)
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Two echinoid species from the early Aptian (Early Cretaceous) of the Kopet-Dagh Basin, NE Iran
Zootaxa, 2019Two echinoid species from the Sarcheshmeh Formation, early Aptian, Lower Cretaceous, of the Kopet-Dagh Basin, NE Iran, are described: a phymosomatoid specimen of Tetragramma sp., and the spatangoid echinoid Miotoxaster collegnii (Sismonda, 1844). This is the first report of echinoids from the Sarcheshmeh Formation from northeastern Iran.
Nils, Schlüter +4 more
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A Cenomanian-Turonian drowning unconformity on the eastern part of Kopet-Dagh basin, NE Iran
Arabian Journal of Geosciences, 2015A Cenomanian-Turonian interval in the Mozduran pass section, eastern part of Kopet-Dagh basin (NE of Iran), was measured and studied in order to interpret the biostratigraphy and paleoecology (based on distribution of planktonic foraminifera). This section consists of 52.5-m light and gray marl and coincides with the Aitamir and Abderaz formation ...
Behnaz Kalanat +3 more
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Arabian Journal of Geosciences, 2020
An integrated petrographical, geochemical, and mineralogical investigation reveals the wide variation in the mineral chemical composition of glauconites within the Albian-Cenomanian Aitamir Formation. Bounded between a black shale (Sanganeh Formation) below and chalky limestone (Abderaz Formation) above the Aitamir Formation represents an inner shelf ...
Mahdi Jafarzadeh +4 more
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An integrated petrographical, geochemical, and mineralogical investigation reveals the wide variation in the mineral chemical composition of glauconites within the Albian-Cenomanian Aitamir Formation. Bounded between a black shale (Sanganeh Formation) below and chalky limestone (Abderaz Formation) above the Aitamir Formation represents an inner shelf ...
Mahdi Jafarzadeh +4 more
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The ammonite family Deshayesitidae in the Kopet Dagh Basin, north-east Iran
Cretaceous Research, 2004The Iranian part of the Kopet Dagh Basin is located in the north-east of Iran where sedimentation continued throughout Jurassic–Cenozoic times. The ammonite content of the Sarcheshmeh and Sanganeh formations (Lower Cretaceous) has been studied. The following forms are recorded for the first time from the basin: Deshayesites cf.
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Source and diagenesis of Middle Jurassic marine mudstones, Kopet-Dagh Basin, NE Iran
2015Middle Jurassic fluvio-deltaic and turbiditic mudstones of the Kashafrud Formation, are important hydrocarbon sources in the gas-rich Kopet-Dagh Basin, northeast Iran. Clay mineral assemblages are important for interpretation of sediment provenance and for understanding burial diagenetic cementation in sandstones.
Poursoltani, Mehdi Reza +1 more
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Journal of Petroleum Geology, 1993
Detailed petrologic, sedimentologic and geohistory analyses have been carried out on the Neocomian (Lower Cretaceous) Shurijeh Formation in the eastern part of the Kopet‐Dagh Basin, NE Iran. The results of these analyses show that the diagenetic history of Shurijeh sandstones was affected by their depositional settings, and the subsequent subsidence of
R. Moussavi‐Harami, R. L. Brenner
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Detailed petrologic, sedimentologic and geohistory analyses have been carried out on the Neocomian (Lower Cretaceous) Shurijeh Formation in the eastern part of the Kopet‐Dagh Basin, NE Iran. The results of these analyses show that the diagenetic history of Shurijeh sandstones was affected by their depositional settings, and the subsequent subsidence of
R. Moussavi‐Harami, R. L. Brenner
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Soil-parent material relationship in a mountainous arid area of Kopet Dagh basin, North East Iran
CATENA, 2017Abstract The effects of parent rock types on soil evolution in arid areas were studied in a sequence of soils, derived from different lithologies in the Kopet Dagh basin (Northeastern Iran) using micromorphology, clay mineralogy, magnetic susceptibility and physico-chemical properties.
Hossein Tazikeh +4 more
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Cretaceous Research, 2018
Abstract Biostratigraphy, using foraminifera and echinoids, plus high-resolution carbon isotope stratigraphy of the upper Maastrichtian–Danian interval in the western part of the Kopet-Dagh Basin in northeast Iran are outlined. Our study of shallow-marine carbonate platform deposits of the Kalat Formation, rich in larger benthic foraminifera ...
Yadolah Ezampanah +5 more
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Abstract Biostratigraphy, using foraminifera and echinoids, plus high-resolution carbon isotope stratigraphy of the upper Maastrichtian–Danian interval in the western part of the Kopet-Dagh Basin in northeast Iran are outlined. Our study of shallow-marine carbonate platform deposits of the Kalat Formation, rich in larger benthic foraminifera ...
Yadolah Ezampanah +5 more
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Arabian Journal of Geosciences, 2017
Salpingoporella species from algal bearing of Barremian-Aptian limestones in the Kopet Dagh basin (NE of Iran) are described. Different species (S. cemi, S. hasi, S. heraldica, S. hispanica, S. milovanovici, S. muehlmbergi, S. parapiriniae, S. piriniae, S. cf. biokovensis, S. steinhauseri, S.
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Salpingoporella species from algal bearing of Barremian-Aptian limestones in the Kopet Dagh basin (NE of Iran) are described. Different species (S. cemi, S. hasi, S. heraldica, S. hispanica, S. milovanovici, S. muehlmbergi, S. parapiriniae, S. piriniae, S. cf. biokovensis, S. steinhauseri, S.
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Paleogene Molluscan Communities in the Kopet-Dagh Basin, NE Iran
Paleontological Journal, 2021A. Salahi, A. Ghaderi
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