PALYNOMORPHS - BASED PALAEOECOLOGICAL IMPLICATIONS OF THE SHEMSHAK FORMATION, AT THE KHOSHYEILAGH SECTION, NORTHEASTERN SHAHRUD

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SAJADI FERESHTEH; HAKIMI TEHRANI Z.

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Paper Information

Journal: JOURNAL OF STRATIGRAPHY AND SEDIMENTOLOGY RESEARCHES Year:2010 | Volume:25 | Issue:2 (37) Page(s): 65-86

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Title

PALYNOMORPHS - BASED PALAEOECOLOGICAL IMPLICATIONS OF THE SHEMSHAK FORMATION, AT THE KHOSHYEILAGH SECTION, NORTHEASTERN SHAHRUD

Author(s)

SAJADI FERESHTEH | HAKIMI TEHRANI Z. | Issue Writer Certificate

Keywords

PALAEOECOLOGYQ2

PALYNOMORPHSQ2

SHEMSHAK FONNATIONQ3

SHAHRUDQ1

EASTERN ALBORZQ2

Abstract

PALAEOECOLOGY of the Shemshak Fonnatian (Rhaetian-Middle Jurassic) at the Khoshyeilagh section north of Ghoznavi Village was studied by using PALYNOMORPHS and organic matter contents. This section with a thickness of 1280m consists of shale, sandatone and coal layers. A total of 67 samples contain diverse and well-preserved PALYNOMORPHS such as spores, pollen grains, opaque and transparent AOM, opaque phytoclasts, phytoplankton (dinofelagellate cysts), woody debris (plant tissue) were collected. Seventy three species of spores (47 genera) and 17 species of pollen (12 genera) are identified. Inferred natural relationships of the miospores imply derivation from a diverse parental flora of Filicopsida, Bryopsida, Lycopsida, Coniferopsida, Cycadopsida and Sphenopsida growing under wann humid conditions during the Rhaetian - Middle Jurassic. The abundance of Ricciisporites tuberculatus testifies a wet and moist condition when the Shemshak Formation was deposited. The high abundance of equi-dimensional and sorted phytoclasts (up to %98) accompanied with well-preserved terrestrial PALYNOMORPHS (spore and pollen) indicates accumulation in a moderate or high level of energy with an aerobic deltaic condition. However, occurrence of rare marine PALYNOMORPHS testifies intermittent marine incursions.

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References

THERMAL MATURITY, QUALITY AND TYPE OF THE ORGANIC MATTER IN THE SHALES OF THE SILICICLASTIC SHEMSHAK FORMATION, CENTRAL AND EASTERN ALBORZ RANGE, NORTHERN IRAN

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APA: Copy

SAJADI, FERESHTEH, & HAKIMI TEHRANI, Z.. (2010). PALYNOMORPHS - BASED PALAEOECOLOGICAL IMPLICATIONS OF THE SHEMSHAK FORMATION, AT THE KHOSHYEILAGH SECTION, NORTHEASTERN SHAHRUD. JOURNAL OF STRATIGRAPHY AND SEDIMENTOLOGY RESEARCHES, 25(2 (37)), 65-86. SID. https://sid.ir/paper/157014/en

Vancouver: Copy

SAJADI FERESHTEH, HAKIMI TEHRANI Z.. PALYNOMORPHS - BASED PALAEOECOLOGICAL IMPLICATIONS OF THE SHEMSHAK FORMATION, AT THE KHOSHYEILAGH SECTION, NORTHEASTERN SHAHRUD. JOURNAL OF STRATIGRAPHY AND SEDIMENTOLOGY RESEARCHES[Internet]. 2010;25(2 (37)):65-86. Available from: https://sid.ir/paper/157014/en

IEEE: Copy

FERESHTEH SAJADI, and Z. HAKIMI TEHRANI, “PALYNOMORPHS - BASED PALAEOECOLOGICAL IMPLICATIONS OF THE SHEMSHAK FORMATION, AT THE KHOSHYEILAGH SECTION, NORTHEASTERN SHAHRUD,” JOURNAL OF STRATIGRAPHY AND SEDIMENTOLOGY RESEARCHES, vol. 25, no. 2 (37), pp. 65–86, 2010, [Online]. Available: https://sid.ir/paper/157014/en

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