Taxonomic study of spongy spumellarian Radiolaria with three and four coplanar spines or arms from the middle Carnian (Late Triassic) of the Köseyahya nappe (Elbistan, SE Turkey) and other Triassic localities

Dumitrică, Paulian; Tekin, U. Kagan; Bedi, Yavuz

doi:10.1007/s12542-012-0161-1

Cited by 18 publications

(5 citation statements)

References 17 publications

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“…In the Pelitören section, the sample (12-TC-303A) taken from the basal part of the section yielded Spongotortilispinus tortilis ( Figure 6), some of them (P. nazarovi, Nodotetrasphaera cive and Annulotri-assocampe sulovensis) disappear close to the end of middle Carnian based on the recent studies in SE Turkey (Dumitrica, Tekin, & Bedi, 2010, 2013a, 2013bTekin & Bedi, 2007a. Three taxa (Canoptum cucurbita, C. inornatum and C. levis) are crucial to determine the upper limit of the age of the sample ( Figure 6).…”

Section: Radiolarian Assemblages From the Pelitören Regionmentioning

confidence: 94%

“…Thus, radiolarian fauna of sample 12-TC-303B is well correlative to the fauna obtained from the Mersin mélange (Kozur, Moix, & Ozsvart, 2007a, 2007cMoix et al, 2007) corresponding to Spongotortilispinus moixi Zone indicating the early Late Carnian age ( Figure 6). Although Kozur et al (2009) defined the Elbistanium gracile Zone for the earliest Late Carnian, subsequently Dumitrica et al (2013b) suggested that the age of the Elbistanium gracile Zone is latest Middle Carnian based on the conodont data ( Figure 6). Based on these facts, the age of the sample 12-TC-303B should correspond to the early Late Carnian including its earliest part.…”

Section: Radiolarian Assemblages From the Pelitören Regionmentioning

confidence: 99%

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Middle-Late Triassic radiolarian cherts from the Arkotdağ mélange in northern Turkey: implications for the life span of the northern Neotethyan branch

et al. 2012

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Moderately to well-preserved, relatively diverse Middle and Late Triassic radiolarian assemblages have been obtained from the chert slide-blocks within the Late Cretaceous mélange of the IntraPontide Suture Zone at the Pelitören village to the NE of Kastamonu-Araç in northern Central Anatolia. In this locality, chert slide-blocks are tectonically overlain by metamorphic sole of the serpentinized peridotites belonging to the IntraPontide ophiolites. The oldest radiolarian assemblages, with the middle Late Anisian and late Early Ladinian ages, were found in green cherts in a pebbly mudstone. They are underlain by a larger slide-block composed of an alternation of radiolarian cherts and mudstones with late Early and early Late Carnian radiolarians. Another slide-block with cherts and mudstones between the sub-ophiolitic amphibolite and the Carnian cherts includes the late Early to early Middle Norian radiolarian assemblages. These new data reveal that the IntraPontide basin was already open during the Middle to Late Triassic time and deep enough for radiolarian cherts to deposit. Moreover, it suggests that the IntraPontide Ocean is contemporaneous with a number of inferred Paleo-and Neotethyan oceanic basins in SE Europe and NW Anatolia, which were proposed in copious tectonic models.

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Section: Radiolarian Assemblages From the Pelitören Regionmentioning

confidence: 94%

Section: Radiolarian Assemblages From the Pelitören Regionmentioning

confidence: 99%

Middle-Late Triassic radiolarian cherts from the Arkotdağ mélange in northern Turkey: implications for the life span of the northern Neotethyan branch

et al. 2012

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“…9 sections a, b) and Area 4B, Nurhak Dağı). The type section is located 750 m south of Köseyahya (near Burmakaya Tepe) (Tekin and Bedi, 2007a, b;Dumitrica et al, 2013). There, the succession begins in the Middle Carnian, as dated by radiolarians, with alternations of fine-grained sandstone, calcareous siltstone, marl, mudstone and micritic limestones.…”

Section: Late Triassic-late Cretaceous Neritic-pelagic (Köseyahya) Th...mentioning

confidence: 99%

Late Palaeozoic-Neogene sedimentary and tectonic development of the Tauride continent and adjacent Tethyan ocean basins in eastern Turkey: New data and integrated interpretation

Robertson

Parlak

Ustaömer

et al. 2021

Journal of Asian Earth Sciences

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“…An assignment to the Ladinian is indicated by Triassocampe scalaris Dumitrică, Kozur & Mostler which last occurs in this stage (Tekin 1999). The associated genus Paurinella was supposed to make its last occurrence in the Ladinian (O'Dogherty et al 2009a(O'Dogherty et al , 2010 but has been proven to range up to the late Early Carnian Tetraporobrachia haeckeli Zone (Dumitrică et al 2013).…”

Section: Sample L52mentioning

confidence: 99%

“…This sample contains several genera (Dumitricasphaera, Triassocingula, and Xiphothecaella) that first occur in the Ladinian and continue at least to the Late Carnian (O'Dogherty et al 2009a(O'Dogherty et al , 2010. Angulopaurinella, which last occurs in the late Early Carnian (see Dumitrică et al 2013) is associated. Canesium?…”

Section: Sample L295mentioning

confidence: 99%

Erosion of a Jurassic ophiolitic nappe-stack as indicated by exotic components in the Lower Cretaceous Rossfeld Formation of the Northern Calcareous Alps (Austria)

Krische¹,

Goričan²,

Gawlick³

2014

Geologica Carpathica

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Abstract:The microfacies and biostratigraphy of components in mass-flow deposits from the Lower Cretaceous Rossfeld Formation of the Northern Calcareous Alps in Austria were analysed. The pebbles are classified into six groups: 1) Triassic carbonates (uppermost Werfen to basal Gutenstein Formations), 2) Upper Jurassic to lowermost Cretaceous carbonates (Oberalm Formation and Barmstein Limestone), 3) contemporaneous carbonate bioclasts (?Valanginian to ?Hauterivian), 4) siliceous pebbles (radiolarites, ophicalcites, siliceous deep-sea clays, cherts), 5) volcanic and ophiolitic rock fragments and 6) siliciclastics such as quartz-sandstones and siltstones. The radiolarites show three age groups: Ladinian to Early Carnian, Late Carnian/Norian and Late Bajocian to Callovian. The Middle Triassic radiolarites are interpreted as derived from the Meliata facies zone or from the Neotethys ocean floor, whereas the Late Triassic radiolarites give evidence of the sedimentary cover of the Neotethys ocean floor. During late Early to early Late Jurassic, the Triassic to Early/Middle Jurassic passive margin of the Neotethys attained a lower plate position and became obducted by the accreted ocean floor of the Neotethys Ocean. The accreted ocean floor was contemporaneously eroded and resedimented in different deep-water basins in front of the nappe-stack. These basin fills were subsequently incorporated in the orogen forming mélanges in this complex ophiolitic nappe-stack. The Middle Jurassic radiolarites are interpreted as the matrix of these mélanges. Together with the volcanic and ophiolitic material the siliceous rocks were eroded from this ophiolitic nappe-stack in Early Cretaceous times and brought by a fluvial system to the Rossfeld Basin within the Tirolic realm of the Northern Calcareous Alps. The different fining-upward sequences in the succession of the Lower Cretaceous Rossfeld Formation can be best explained by sea-level fluctuations and decreasing tectonic activity in the Jurassic orogen.

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Taxonomic study of spongy spumellarian Radiolaria with three and four coplanar spines or arms from the middle Carnian (Late Triassic) of the Köseyahya nappe (Elbistan, SE Turkey) and other Triassic localities

Cited by 18 publications

References 17 publications

Middle-Late Triassic radiolarian cherts from the Arkotdağ mélange in northern Turkey: implications for the life span of the northern Neotethyan branch

Middle-Late Triassic radiolarian cherts from the Arkotdağ mélange in northern Turkey: implications for the life span of the northern Neotethyan branch

Late Palaeozoic-Neogene sedimentary and tectonic development of the Tauride continent and adjacent Tethyan ocean basins in eastern Turkey: New data and integrated interpretation

Erosion of a Jurassic ophiolitic nappe-stack as indicated by exotic components in the Lower Cretaceous Rossfeld Formation of the Northern Calcareous Alps (Austria)

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