Paleontology and paleoecology of coralline algal assemblages from the Early–Middle Miocene deposits in NW of the Zagros basin, Iran

Roozpeykar, Asghar; Maghfouri-Moghaddam, Iraj; Yazdi, Mehdi; Yousefi-Yegane, Bizhan

doi:10.1007/s13146-019-00509-z

Cited by 6 publications

(9 citation statements)

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“…The dominance of a sparitic matrix or sparry cement in the identified algal grainstone facies and the abundance of bioclasts and skeletal grains http://dx.doi.org/10.18268/BSGM2022v74n2a020122 point to a shoal environment (in an inner ramp) in a high-energy water zone above the fair-weather wave base during the Aquitanian (Flügel, 2010;Sadeghi et al, 2011;Vescogni et al, 2014;Roozpeykar et al, 2019b).…”

Section: Coralline Red Algaementioning

confidence: 99%

“…Usually, the occurrence of coralline red algae in a grainstone facies is related to nutrient influx due to encroachment of siliciclastics (Erlich et al, 1990(Erlich et al, , 1993Roozpeykar et al, 2019a). For instance, Ghosh and Sarkar (2013) have reported a grainstone facies comprising an algal association of Corallina, Lithothamnion, and Spongites from Pliocene reef and back-reef shelf environments as well as a melobesioid coralline algal assemblage of Phymatolithon, Mesophyllum, and Lithothamnion from a coralline algal boundstone in a Pliocene fore-reef environment.…”

Section: Coralline Red Algaementioning

confidence: 99%

“…For instance, Ghosh and Sarkar (2013) have reported a grainstone facies comprising an algal association of Corallina, Lithothamnion, and Spongites from Pliocene reef and back-reef shelf environments as well as a melobesioid coralline algal assemblage of Phymatolithon, Mesophyllum, and Lithothamnion from a coralline algal boundstone in a Pliocene fore-reef environment. Roozpeykar et al (2019aRoozpeykar et al ( , 2019b have studied a coralline red algae-rich grainstone in a Miocene shoal environment in the Zagros Basin and have reported non-geniculate (dominant Spongites and reworked melobesioids) and geniculate algae (Corallina).…”

Section: Coralline Red Algaementioning

confidence: 99%

“…Mainly, non-geniculate coralline red algae were dominant in the Miocene paleoenvironments, whereas, geniculate corallines were subordinate (e.g. Ghosh, 2002;Rösler et al, 2015;Coletti et al, 2018;Roozpeykar et al, 2019a).…”

Section: Introduction 1 Introductionmentioning

confidence: 99%

“…(C) Geological map of the studied area (redrawn and modified from Zahedi, 1978 andRahiminejad et al, 2020). Roozpeykar et al, 2019a). This paper focuses on the paleoecological aspects of Lower Miocene coralline red algae from the Qom Formation and contributes data from the algal-rich Cenozoic carbonates of Iran.…”

Section: Introduction 1 Introductionmentioning

confidence: 99%

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Paleoecology of Lower Miocene coralline red algae-rich grainstone facies in the Qom Formation (Vartun section, central Iran)

Rahiminejad¹,

Yazdi²,

Ghosh³

2022

BSGM

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In this paleoecological study we focused on coralline red algae-rich shoal grainstone facies in the Lower Miocene (Aquitanian) carbonates of the Qom Formation in the Vartun section in central Iran. The identified coralline red algae are mainly non-geniculate, although very rare geniculate forms of corallines were also recognized in thin section analysis. The identified algae are represented by Melobesioideae (Lithothamnion cf. valens, Lithothamnion cf. rovereoti, Lithothamnion cf. peleense, and Lithothamnion spp.), Mastophoroideae (Neogoniolithon sp., Spongites spp., and Spongites cf. fruticulosus), Sporolithon spp. (Sporolithon spp. and Sporolithon cf. airoldii), and geniculate coralline (Corallina). The algal taxa mainly display fruticose and lumpy growth forms. The dominance of the former is consistent with high water energy in the identified shoal environment. The presence of Lower Miocene algae indicates that deposition of carbonates took place in warm tropical to subtropical waters in a euphotic marine environment during the Aquitanian. Likewise, high water energy and sediment agitation resulted in taphonomic features such as fragmentation, abrasion, and disarticulation.

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Section: Coralline Red Algaementioning

confidence: 99%