Major Problems of Western Anatolian Geology

Yılmaz, Yücel

doi:10.1002/9781118944998.ch6

Cited by 9 publications

(2 citation statements)

References 278 publications

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“…Late Triassic (215–201 Ma) eclogites and blueschists are known from the Lower Karakaya Complex in northwest Turkey (Okay et al, 2002; Okay & Monié, 1997; Topuz et al, 2018); the new ages extend the subduction into the Jurassic (Figure 9). Late Cretaceous subduction‐accretion is well known from other parts of the İzmir‐Ankara suture (e.g., Rojay, 2013; Sarifakioglu et al, 2014; Yılmaz, 2017). There is comparatively less data on Jurassic subduction‐accretion; Çelik et al (2011) describe amphibolites from the ophiolitic mélange north of Ankara with Jurassic Ar‐Ar amphibole ages (two samples, 177 and 167 Ma).…”

Section: Discussionmentioning

confidence: 99%

İzmir‐Ankara Suture as a Triassic to Cretaceous Plate Boundary—Data From Central Anatolia

et al. 2020

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The İzmir-Ankara suture represents part of the boundary between Laurasia and Gondwana along which a wide Tethyan ocean was subducted. In northwest Turkey, it is associated with distinct oceanic subduction-accretion complexes of Late Triassic, Jurassic, and Late Cretaceous ages. The Late Triassic and Jurassic accretion complexes consist predominantly of basalt with lesser amounts of shale, limestone, chert, Permian (274 Ma zircon U-Pb age) metagabbro, and serpentinite, which have undergone greenschist facies metamorphism. Ar-Ar muscovite ages from the phyllites range from 210 Ma down to 145 Ma with a broad southward younging. The Late Cretaceous subduction-accretion complex, the ophiolitic mélange, consists of basalt, radiolarian chert, shale, and minor amounts of recrystallized limestone, serpentinite, and greywacke, showing various degrees of blueschist facies metamorphism and penetrative deformation. Ar-Ar phengite ages from two blueschist metabasites are ca.

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Section: Discussionmentioning

confidence: 99%

İzmir‐Ankara Suture as a Triassic to Cretaceous Plate Boundary—Data From Central Anatolia

et al. 2020

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“…This compression then formed the North and East Anatolian transform faults, which were defined in the Anatolian Plate and began escaping westward. The Pontides and the Taurides were formed during this period (Yılmaz, 2017).…”

Section: Geological Setting Of the Ereğli̇‐ulukişla Basinmentioning

confidence: 99%

Late Eocene to Late Miocene palaeoecological and palaeoenvironmental dynamics of the Ereğli‐Ulukışla Basin (Southern Central Anatolia)

et al. 2020

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The Ereğli‐Ulukışla Basin which is the focus of this study is situated at the south‐eastern edge of the Central Anatolian Cenozoic basins (Tuzgölü, Haymana, Çankırı‐Çorum, and Sivas), and is divided into two sub‐basins, the Aktoprak (AT) and Hacıbekirli‐Tepeköy (HT). These sub‐basins mainly comprise a stratigraphically discontinuous and laterally variable series, represented by ‘fluvio‐lacustrine’ siliciclastic and carbonate sediments deposited over a wide range of environments, including meandering and braided rivers, coastal fluvial and fan deltas, mixed carbonate‐siliciclastic shores, dry lake flats, and coal‐bearing swamps. In the Ereğli‐Ulukışla Basin, higher palaeotopographic conditions existed in the AT because of the uplift of the Central Anatolian Plateau during late Middle Miocene (Serravallian)‐early Late Miocene (Tortonian) and the subsequent uplift of the Taurus Mountains in the latest Miocene (Messinian) as deduced in the Tepeköy region (northeast) of the HT sub‐basin. Diversity and abundance of archaic pollen (Normapolles) in the pollen biostratigraphy decreased from the Eocene to Oligocene, while forms with advanced angiosperm morphology (post‐Normapolles), were observed with the increase in post‐Normapolles during the Miocene. The dominance of woody angiosperms in the pollen assemblages, and increasing variety and abundance of ‘open herbs’ and shrub pollen from the Early Miocene to Late Miocene defines an important change in flora. Furthermore, the palaeoclimatic conditions changed from humid‐subtropical to warm‐temperate during the sediment deposition in the Ereğli‐Ulukışla Basin. Recurrent arid phases during the Late Miocene are indicated by the deposition of reddish caliche conglomerates in broad dry lake flats (HT), and evaporites in local playa lakes (AT), respectively.

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Miocene uplift and exhumation history of northwestern Anatolia (Turkey): Implications from apatite (U-Th)/He thermochronology of syn-extensional plutons

Altunkaynak

Ünal

Sunal

et al. 2021

Journal of Asian Earth Sciences

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Major Problems of Western Anatolian Geology

Cited by 9 publications

References 278 publications

İzmir‐Ankara Suture as a Triassic to Cretaceous Plate Boundary—Data From Central Anatolia

İzmir‐Ankara Suture as a Triassic to Cretaceous Plate Boundary—Data From Central Anatolia

Late Eocene to Late Miocene palaeoecological and palaeoenvironmental dynamics of the Ereğli‐Ulukışla Basin (Southern Central Anatolia)

Miocene uplift and exhumation history of northwestern Anatolia (Turkey): Implications from apatite (U-Th)/He thermochronology of syn-extensional plutons

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