Tracking the uplift of the Bolkar Mountains (south-central Turkey): evidence from apatite fission track thermochronology

Karaoğlan, Fatih

doi:10.3906/yer-1504-17

Cited by 16 publications

(10 citation statements)

References 76 publications

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“…Our AMS data suggest that the deposition of the redbeds of the Aktoprak Formation, in the late Oligocene [ Blumenthal , ; Meijers et al , ], occurred during continued Bolkar folding, consistent with the molasse‐type sedimentary facies. Apatite fission track ages of 23–16 Ma from the Horoz granite [ Karaoglan , ] exposed in the vertical limb of the Bolkar anticline indicate that the exhumation continued during Miocene times, following the initial onset of contraction associated with Bolkar folding and uplift. The Bolkar anticline is restricted to the area south of the Ulukışla basin, bordered in the east by the Ecemiş fault.…”

Section: Tectonic Interpretation Of the Ulukışla Basinmentioning

confidence: 99%

Kinematics of a former oceanic plate of the Neotethys revealed by deformation in the Ulukışla basin (Turkey)

et al. 2016

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Kinematic reconstruction of modern ocean basins shows that since Pangea breakup a vast area in the Neotethyan realm was lost to subduction. Here we develop a first‐order methodology to reconstruct the kinematic history of the lost plates of the Neotethys, using records of subducted plates accreted to (former) overriding plates, combined with the kinematic analysis of overriding plate extension and shortening. In Cretaceous‐Paleogene times, most of Anatolia formed a separate tectonic plate—here termed “Anadolu Plate”—that floored part of the Neotethyan oceanic realm, separated from Eurasia and Africa by subduction zones. We study the sedimentary and structural history of the Ulukışla basin (Turkey); overlying relics of this plate to reconstruct the tectonic history of the oceanic plate and its surrounding trenches, relative to Africa and Eurasia. Our results show that Upper Cretaceous‐Oligocene sediments were deposited on the newly dated suprasubduction zone ophiolites (~92 Ma), which are underlain by mélanges, metamorphosed and nonmetamorphosed oceanic and continental rocks derived from the African Plate. The Ulukışla basin underwent latest Cretaceous‐Paleocene N‐S and E‐W extension until ~56 Ma. Following a short period of tectonic quiescence, Eo‐Oligocene N‐S contraction formed the folded structure of the Bolkar Mountains, as well as subordinate contractional structures within the basin. We conceptually explain the transition from extension, to quiescence, to shortening as slowdown of the Anadolu Plate relative to the northward advancing Africa‐Anadolu trench resulting from collision of continental rocks accreted to Anadolu with Eurasia, until the gradual demise of the Anadolu‐Eurasia subduction zone.

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Section: Tectonic Interpretation Of the Ulukışla Basinmentioning

confidence: 99%

Kinematics of a former oceanic plate of the Neotethys revealed by deformation in the Ulukışla basin (Turkey)

et al. 2016

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“…The Central Taurus Mountains were created by northsouth compression of a carbonate platform in the Neo-Tethys Ocean between the African-Arabian and Eurasia plates beginning in the Middle Cretaceous (Biju-Duval et al, 1977;Livermore and Smith, 1984;Yazgan and Chessex, 1991;Bozkurt, 2001). After this period, the African plate was subducted to the north, while the Central Taurus mountains were exposed to compression, thickening, and uplift in five different periods during the Late Eocene-Early Oligocene, as (1), Middle Miocene (2), Late Miocene (3), Pliocene (4), and Early Pleistocene-present day (5) (Akay and Uysal, 1988;Schildgen et al, 2014;Karaoğlan, 2016). Additionally, stream profiles show that the Central Taurus underwent a multistage uplift instead of a continuous uplift (Altın, 2012;Schildgen et al, 2012).…”

Section: Orientation Of Depressions and Tectonic And Geomorphologic Evolutionmentioning

confidence: 99%

“…In the Early Oligocene, the African-Arabian plate was subducted under the Anatolian plate, causing northsouth compression, and the Central Taurus rose above sea level for the first time (Şengör and Yılmaz, 1981;Akay and Uysal, 1988;Jaffey and Robertson, 2001;Karaoğlan, 2016) (Figure 8a). In the Middle Miocene period, the N25°E striking, left-lateral strike-slip Ecemiş Fault Zone was created separating the Central and Eastern Taurus (Koçyiğit and Beyhan, 1998).…”

Section: Orientation Of Depressions and Tectonic And Geomorphologic Ementioning

confidence: 99%

“…After this period, the African plate was subducted to the north, while the Central Taurus mountains were exposed to compression, thickening, and uplift in five different periods during the Late Eocene-Early Oligocene, as (1), Middle Miocene (2), Late Miocene (3), Pliocene (4), and Early Pleistocene-present day (5) (Akay and Uysal, 1988;Schildgen et al, 2014;Karaoğlan, 2016). Additionally, stream profiles show that the Central Taurus underwent a multistage uplift instead of a continuous uplift (Altın, 2012;Schildgen et al, 2012).…”

Section: Orientation Of Depressions and Tectonic And Geomorphologic Ementioning

confidence: 99%

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Karstic depressions on Bolkar Mountain plateau, Central Taurus (Turkey):distribution characteristics and tectonic effect on orientation

Öztürk¹,

Şimşek²,

Utlu³

et al. 2017

Turkish J Earth Sci

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This study investigates the spatial distribution characteristics of karstic depressions that developed on a 2558 km 2 plateau with gently sloping in neritic (reef) limestones in the western section of the Bolkar Mountains. The 30,132 karstic depressions identified are located at elevations between 1315 and 2525 m, while 31°/km 2 slope and 5.6 km/km 2 drainage density are limited to the spatial distribution of depressions. In the central section of the study area at the anticlinal surface, maximum density (99 depressions/km 2 ) is reached between elevations of 1930 and 2080 m. The orientation of depressions is predominantly NE-SW. However, in the same area, the orientation of depressions also varies from ENE-WSW toward NE-SW from west to east. The left-lateral strike-slip Ecemiş Fault was effective in the formation of these orientations, with a NE-SW orientation close to the fault and ENE-WSW orientation farther away from the fault.

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“…Bu dönemden sonra, Afrika levhasının kuzeye doğru hareketi esnasında Orta Toroslar sıkışmaya ve yükselmeye maruz kalmıştır (Akay ve Uysal, 1988;Schildgen vd., 2014;Karaoğlan, 2016). Üst Eosen-Alt Oligosen'de Afrika-Arap Plaklarının Anadolu plakasının altına dalması kireçtaşlarının kuzeydoğu-güneybatı yönlü sıkışmasına ve Orta Toroslar'ın karalaşmasına neden olmuştur (Şengör ve Yılmaz, 1981;Akay ve Uysal, 1988;Doğan, 2002;Karaoğlan, 2016). Bu tektonik süreç altında araştırma…”

Section: Introductionunclassified

Geyik Dağı üzerindeki dolin ve uvalaların morfotektonik önemi

Şimşek

Öztürk²,

Turoğlu

2019

Türk Coğrafya Dergisi

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Karbonatlı anakayanın çözünmesi sonucunda oluşan dolin ve uvalalar (karstik depresyonlar) Toros Dağları'ndaki yüksek karstik alanların hakim yerşekillerindendir. Bu şekillerin oluşumu, yoğunluğu, şekil geometrisi ve dağılım deseni üzerinde yapısal unsurların büyük etkisi bulunur. Özellikle dolinlerin yönelimi üzerinde sıkışma, gerilme ve makaslamaya dayalı tektonik deformasyon yapılarının doğrultuları belirleyici olur. Bu araştırmada Geyik Dağı kütlesi üzerinde tektonizmanın dolin yoğunluğu, geometrisi ve dağılışlarında nasıl bir etkiye sahip olduğunun ortaya konulması amaçlanmıştır. 1/25000 harita ölçeğinde tespit edilen tüm karstik şekiller coğrafi bilgi sistemleri ortamında poligon olarak sayısallaştırılmıştır. Ardından her şekle ait 7 farklı parametreden oluşan veri seti oluşturulmuştur. 1x1 km'lik gridler aracılığıyla dolin yoğunluğunun ve 2.5x2.5 km'lik gridler aracılığıyla dolin yöneliminin alansal dağılışı ortaya konulmuştur. Topografya haritalarından gerçekleştirilen sayısallaştırma işlemi sonucunda 2.108 km 2 'lik alan içerisinde toplam 25.599 dolin ve uvala tespit edilmiştir. Kütle üzerinde karstik şekillerin yoğunluğu maksimum 145 adet/km 2 'ye kadar ulaşmaktadır. Tüm depresyonların uzun eksenlerinin yönelimleri dağın ve tektonik hatların genel uzanımına paralel olarak KB-GD doğrultusundadır. Tüm haritalar ve tektonik yapılar arasındaki ilişkilere göre bindirme faylarının yoğunluk üzerinde, yanal ve düşey atımlı fayların depresyonların şekilleri üzerinde daha fazla etkili olduğunu gösterir.

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Tracking the uplift of the Bolkar Mountains (south-central Turkey): evidence from apatite fission track thermochronology

Cited by 16 publications

References 76 publications

Kinematics of a former oceanic plate of the Neotethys revealed by deformation in the Ulukışla basin (Turkey)

Kinematics of a former oceanic plate of the Neotethys revealed by deformation in the Ulukışla basin (Turkey)

Karstic depressions on Bolkar Mountain plateau, Central Taurus (Turkey):distribution characteristics and tectonic effect on orientation

Geyik Dağı üzerindeki dolin ve uvalaların morfotektonik önemi

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