The Control of Sea-Level Changes on Sedimentation in the Mut Basin: Late Serravallian-Early Tortonian Incised Valley-Fill

Ilgar, Ayhan; Esirtgen, Tolga; Hakyemez, Aynur; ÇULHA, Gönül; DEMİRKAYA, Serap

doi:10.19111/bulletinofmre.543268

Cited by 2 publications

(1 citation statement)

References 58 publications

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“…Relative sea level fall in the late Serravallian period led to the shoaling of the basin, migration of the reefal limestones of Mut formation on to Köselerli formation in basinward direction and to crop out on the basin margin. Thus, incised valleys, larger than a river channel, were formed upon the reefal limestone of Mut formation (Ilgar et al, 2019). In late Serravallian-early Tortonian period, sedimentary facies of Dağpazarı formation were deposited in this incised valley (Figure 2).…”

Section: Regional Geology and Stratigraphymentioning

confidence: 96%

Oligocene molasse sedimentation in Central Taurides: Records of the onset of extensional tectonic regime

Ilgar

Esirtgen

Bozkurt

et al. 2020

Bulletin of the Mineral Research and Exploration

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The lacustrine units have been deposited in the Ermenek, Bucakkışla, Korucuk and Çamlıyayla basins in the Central Taurides since early Oligocene. In this study, structural features and stratigraphical properties of Oligocene basins have been described in detail and the lacustrine units have been dated. Regional geological interpretations have been made by using tectono-stratigraphic and age data of the basins. Lacustrine Oligocene sedimentation in these basins, which were opened on the tectonic units of Taurides due to normal faults, constitute the first records of the sedimentation occurring under the extensional tectonic regime after the orogeny of the Central Taurides. All the pre-Oligocene units that had been emplaced in the region due to a north-south compressional movement in the Central Taurides, continued to be compressed until the end of Eocene, and completed their orogenic development as napped structures. The bedrock units, reaching the maximum elevation, have been subjected to "orogenic collapse" due to the strain or gravity forces as a result of an interruption or termination of the compression which lasted until the end of Eocene. Thus, "orogenic collapse" basins have started to be formed in the Central Taurides since Oligocene. The orogeny and the compressional tectonic regime forming the Taurides lasted until late Miocene in the Eastern Taurides. On the other hand, extensional basin formation since early Oligocene on the Taurus units, which had been emplaced in the region due to nappe tectonics, indicates that a new tectonic period has started in the Central Taurides.

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Section: Regional Geology and Stratigraphymentioning

confidence: 96%

Oligocene molasse sedimentation in Central Taurides: Records of the onset of extensional tectonic regime

Ilgar

Esirtgen

Bozkurt

et al. 2020

Bulletin of the Mineral Research and Exploration

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Strontium Isotopic, Ostracod fauna, and Paleoenvironmental Features of the Late Miocene Sequence in Mut/Dağpazarı Region (Southern Turkey)

ŞAFAK,

SONSUN,

NURLU

2023

Hittite Journal of Science and Engineering

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The Dağpazarı village in the Mut (Mersin-S Turkey) region served as the main subject of the study and from the research area, 2 measured stratigraphic sections have been obtained. By analyzing the ostracod fauna of the Dağpazarı, Ballı and Mut Formations in these portions and using strontium isotope chemostratgraphic dating, the Middle-Late Miocene period in the area was thoroughly examined. The upper levels of the Mut/Köselerli formations, which are Burdigalian and Serravallian, mark the beginning of the Miocene succession in the research region. The Dağpazarı formation, which includes plentiful silty-clay, Ostrea fossiliferous, and lignite layers, is unconformably deposited just above these levels. This formation contains the following ostacode types; Bairdia subdeltoidea, C. glypta, Cytheridea acuminata acuminata, Acanthocythereis hystrix, Krithe monosteracensis, Neomonoceratina mouliana, Hemicyprideis sp., Cistacythereis caelatura, Cyherella terguemi, T. prava, K. langhiana, A. ulicznyi, Pokornyella deformis minor, Loxoconcha alata, Tenedocythere salebrosa. Furthermore, the planktonic foraminifera species are; O. universa, Globigerinoides trilobus, Glb. ruber, Orbulina bilobata, Glb. sacculifer, O. suturalis, and the formation includes abundant bryozoa, echinoid spines, gastropods such as Terebralia at distinct levels and fish otolith. The formation, which dates from the late Serravallian to the early Tortonian, exhibits the shallow reef character that continued to develop in the late Miocene. The formation consists of dark green, bulbous weathered claystone, Bairdia subdeltoidea and Ostrea which are reduced in size at the levels that pass into hard clayey sandstone, abundant benthic foraminifera with abundant echinide spines. The formation is made up of benthic foraminifera, hard clayey sandstone, and weathered dark green claystone with a lot of echinide spines. Ostrea and Bairdia subdeltoidea are also present. The superior section of the examined succession finishes with silty, hard, clayey limestone and light-colored limestone bands. The level, the Tırtar7Ballı formation, which is compatible with the Dağpazarı formation, indicates the top of a recent reef formation in the Tortonian. Ostracod species such as Aurila pigadiana, Thalmannia hodgii, Buntonia sublatissima dertonensis, Bairdia subdeltoidea, Aurila sp. B Bassiouni have been defined. The limestones furthermore include abundant benthic foraminifera and echinoid spines. The ratio of 87Sr/86Sr analyzed from the carbonate sample obtained from the Dağpazarı formation is 0.708920. The age of the Dağpazarı formation was calculated as 8.7 Ma based on these isotope data.

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The Control of Sea-Level Changes on Sedimentation in the Mut Basin: Late Serravallian-Early Tortonian Incised Valley-Fill

Cited by 2 publications

References 58 publications

Oligocene molasse sedimentation in Central Taurides: Records of the onset of extensional tectonic regime

Oligocene molasse sedimentation in Central Taurides: Records of the onset of extensional tectonic regime

Strontium Isotopic, Ostracod fauna, and Paleoenvironmental Features of the Late Miocene Sequence in Mut/Dağpazarı Region (Southern Turkey)

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