PALAEOECOLOGY OF THE GEIRUD FORMATION AT THE GARMABDAR STRATIGRAPHIC SECTION NORTHEAST TEHRAN

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HASHEMI SEYED HOSSEIN; TABE F.

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Journal: Iranian Journal of Geology Year:2009 | Volume:3 | Issue:9 Page(s): 3-14

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Information Journal Paper

Title

PALAEOECOLOGY OF THE GEIRUD FORMATION AT THE GARMABDAR STRATIGRAPHIC SECTION NORTHEAST TEHRAN

Author(s)

HASHEMI SEYED HOSSEIN | TABE F. | Issue Writer Certificate

Keywords

GEIRUD FORMATIONQ2

NORTHEAST TEHRANQ2

PALAEOECOLOGYQ3

PALYNOMORPHSQ3

PLANT MEGAFOSSILSQ2

Abstract

The Upper Devonian strata of GEIRUD FORMATION consist primarily of conglomerates, quartzites, sandstones, siltstones, shales carbonates and are widely distributed in the central Alborz Mountains. Diverse and variously preserved fauna including crustaceans, fish, goniatites, brachiopods in association with land-derived mega- and microfossils (terrestrial PALYNOMORPHS) are present in the GEIRUD FORMATION at Garmabdar, NORTHEAST TEHRAN. Acritarchs (sensu lato) are diverse and more abundant than spores. The marine PALYNOMORPHS such as prasinophyte phycomata, acritarchs, scolecodonts, and chitinozoans together with the associated terrestrial elements show an open marine, near shore depositional setting for the GEIRUD FORMATION deposits at the studied section; this generally corroborates the available faunal evidence. The associated megflora is poorly diversified and indifferently preserved and are identifiable only at supra-generic level. Geminospora lemurata is quantitatively one of the most important species, being distributed throughout the palyniferous section. It is inferred that the contemporaneous coastal vegetation was relatively diverse, and is most likely dominated by fern allies (including Rhyniopsida, Lycophyta, and Equisetopsida) and archaeopterid progymnosperms.

Cites

PALYNOSTRATIGRAPHY OF THE DEVONIAN STRATA OF SOUTHWESTERN SHAHRUD

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APA: Copy

HASHEMI, SEYED HOSSEIN, & TABE, F.. (2009). PALAEOECOLOGY OF THE GEIRUD FORMATION AT THE GARMABDAR STRATIGRAPHIC SECTION NORTHEAST TEHRAN. IRANIAN JOURNAL OF GEOLOGY, 3(9), 3-14. SID. https://sid.ir/paper/129518/en

Vancouver: Copy

HASHEMI SEYED HOSSEIN, TABE F.. PALAEOECOLOGY OF THE GEIRUD FORMATION AT THE GARMABDAR STRATIGRAPHIC SECTION NORTHEAST TEHRAN. IRANIAN JOURNAL OF GEOLOGY[Internet]. 2009;3(9):3-14. Available from: https://sid.ir/paper/129518/en

IEEE: Copy

SEYED HOSSEIN HASHEMI, and F. TABE, “PALAEOECOLOGY OF THE GEIRUD FORMATION AT THE GARMABDAR STRATIGRAPHIC SECTION NORTHEAST TEHRAN,” IRANIAN JOURNAL OF GEOLOGY, vol. 3, no. 9, pp. 3–14, 2009, [Online]. Available: https://sid.ir/paper/129518/en

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