PALYNOSTRATIGRAPHY OF UPPER TRIASSIC SEDIMENTS IN NORTH OF ALBORZ MOUNTAINS,(GALANDRUD AND PALAND AREA)

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AGHA NABATI SEYED ALI; SAIDI A.; GHASEMINEZHAD EBRAHIM; AHMADZAEH HERAVI M.; DABIRI O.

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Journal: GEOSCIENCES Year:2002 | Volume:11 | Issue:45-46 Page(s): 76-91

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Title

PALYNOSTRATIGRAPHY OF UPPER TRIASSIC SEDIMENTS IN NORTH OF ALBORZ MOUNTAINS,(GALANDRUD AND PALAND AREA)

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Keywords

PALYNOLOGYQ2

UPPER TRIASSICQ4

PALAND AND GALANDRUD SECTIONSQ4

ALBORZ MOUNTAINSQ4

IRANQ2

Abstract

Two sections in north Alborz mountain were selected and palynologically studied. The first one, Paland section, is located approximately 30 km in the south of Zirab city. This sequence is 200 m thick and consists mainly of limestone and shale beds and assigned to the Upper Triass. This study resulted in the identification of a relatively rich assemblage of palynomorphs. The age of Late Triassic (Late Norian- Rhaetian) is attributed to the formation by. The known Dinoflagellates taxa.The second section, Galandrud section is located about 16 km in the south of Ruian city (Alam - Deh). This section attains a thickness of 590m and consists of limestone, shale, sandstone and siltstone beds. Eighty one palynomorph taxa were encountered form a total of 30 samples from the base of the Shemshak Group which were selected and treated in the palynological laboratory of the geological survey of IRAN. The known species were arranged in the following three local bioassemblage zones:Biozone I, Enzonalasporites vigens: occurs in a thickness of 125m, suggesting the Early - Middle Norian age. Biozone II, Vitreisporites pallidus: with 335m thickness represents the Late Norian age. Lastly, Biozone III, Concavisporites kermanense: occurs in a thickness of l30m indicating the Early Rhaetian age. Statistical study of the recorded palynornorphs indicate an open marine environment for the UPPER TRIASSIC sedirnents for this area.

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APA: Copy

AGHA NABATI, SEYED ALI, SAIDI, A., GHASEMINEZHAD, EBRAHIM, AHMADZAEH HERAVI, M., & DABIRI, O.. (2002). PALYNOSTRATIGRAPHY OF UPPER TRIASSIC SEDIMENTS IN NORTH OF ALBORZ MOUNTAINS,(GALANDRUD AND PALAND AREA). GEOSCIENCES, 11(45-46), 76-91. SID. https://sid.ir/paper/31764/en

Vancouver: Copy

AGHA NABATI SEYED ALI, SAIDI A., GHASEMINEZHAD EBRAHIM, AHMADZAEH HERAVI M., DABIRI O.. PALYNOSTRATIGRAPHY OF UPPER TRIASSIC SEDIMENTS IN NORTH OF ALBORZ MOUNTAINS,(GALANDRUD AND PALAND AREA). GEOSCIENCES[Internet]. 2002;11(45-46):76-91. Available from: https://sid.ir/paper/31764/en

IEEE: Copy

SEYED ALI AGHA NABATI, A. SAIDI, EBRAHIM GHASEMINEZHAD, M. AHMADZAEH HERAVI, and O. DABIRI, “PALYNOSTRATIGRAPHY OF UPPER TRIASSIC SEDIMENTS IN NORTH OF ALBORZ MOUNTAINS,(GALANDRUD AND PALAND AREA),” GEOSCIENCES, vol. 11, no. 45-46, pp. 76–91, 2002, [Online]. Available: https://sid.ir/paper/31764/en

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