Introduction to the Geology of Turkey—A Synthesis

Bozkurt, Erdi̇n; Mittwede, Steven K.

doi:10.1080/00206810109465034

Cited by 107 publications

(59 citation statements)

References 110 publications

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“…The East Anatolian Platform (EAP) represents a continental platform between the northern and southern branches of Neotethys (Bozkurt & Mittwede, 2001). As for the SAB, the EAP represents a sliver of continental crust having drifted-off northern Gondwana, which drifted to the north, which resulted into collision with Eurasia (Adamia et al, 1977;Biju-Duval, Dercourt, & Le Pichon, 1977;Dercourt et al, 1986;Şengün, 2006;Stocklin, 1974;Stöcklin & Bhattarai, 1977).…”

Section: Northeast Anatoliamentioning

confidence: 99%

Linking the NE Anatolian and Lesser Caucasus ophiolites: evidence for large-scale obduction of oceanic crust and implications for the formation of the Lesser Caucasus-Pontides Arc

et al. 2013

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In the Lesser Caucasus and NE Anatolia, three domains are distinguished from south to north: (1) Gondwanian-derived continental terranes represented by the South Armenian Block (SAB) and the Tauride-Anatolide Platform (TAP), (2) scattered outcrops of Mesozoic ophiolites, obducted during the Upper Cretaceous times, marking the northern Neotethys suture, and (3) the Eurasian plate, represented by the Eastern Pontides and the Somkheto-Karabagh Arc. At several locations along the northern Neotethyan suture, slivers of preserved unmetamorphozed relics of now-disappeared Northern Neotethys oceanic domain (ophiolite bodies) are obducted over the northern edge of the passive SAB and TAP margins to the south. There is evidence for thrusting of the suture zone ophiolites towards the north; however, we ascribe this to retro-thrusting and accretion onto the active Eurasian margin during the latter stages of obduction. Geodynamic reconstructions of the Lesser Caucasus feature two north dipping subduction zones: (1) one under the Eurasian margin and (2) farther south, an intra-oceanic subduction leading to ophiolite emplacement above the northern margin of SAB. We extend our model for the Lesser Caucasus to NE Anatolia by proposing that the ophiolites of these zones originate from the same oceanic domain, emplaced during a common obduction event. This would correspond to the obduction of nonmetamorphic oceanic domain along a lateral distance of more than 500 km and overthrust up to 80 km of passive continental margin. We infer that the missing volcanic arc, formed above the intra-oceanic subduction, was dragged under the obducting ophiolite through scaling by faulting and tectonic erosion. In this scenario part of the blueschists of Stepanavan, the garnet amphibolites of Amasia and the metamorphic arc complex of Erzincan correspond to this missing volcanic arc. Distal outcrops of this exceptional object were preserved from latter collision, concentrated along the suture zones.

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Section: Northeast Anatoliamentioning

confidence: 99%

Linking the NE Anatolian and Lesser Caucasus ophiolites: evidence for large-scale obduction of oceanic crust and implications for the formation of the Lesser Caucasus-Pontides Arc

et al. 2013

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“…The papers in this book shed some light on various aspects of this extensional tectonics of the Aegean region, but there are still many contentious issues concerning the origin, timing and evolution of Neogene crustal extension in this broad zone of convergence between Africa and Eurasia (see Taymaz The Aegean region is also characterized by widespread post-collisional magmatism expressed by extensive volcanic sequences, hypabyssal intrusions and granitoid bodies (Fytikas et al 1976(Fytikas et al , 1984Altherr et al 1982;Bingöl et al 1982;Innocenti et al 1984Innocenti et al , 2005Güleç 1991;Seyitoǧlu et al 1992Seyitoǧlu et al , 1997Hetzel et al 1995a This introduction is aimed at presenting a synoptic overview of the regional geology and geophysics based on the existing literature, as well as outlining the results of recent literature on existing controversies about the tectonic and geodynamic evolution of the Aegean region. The geology of this region has been reviewed in a series of recent special publications, providing in-depth coverage of the extant data and models, and readers are referred to these publications for additional information (Robinson 1997;Gourgaud 1998;Bozkurt & Rowbotham 1999a, b;Durand et al 1999;Bozkurt et al 2000;Bozkurt & Mittwede 2001Aksu et al 2002Aksu et al , 2005 …”

Section: Regional Synthesismentioning

confidence: 99%

The geodynamics of the Aegean and Anatolia: introduction

2007

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“…This compressional regime prevails today and is expressed as an active northwest-trending and south-vergent fold-and-thrust belt. Associated west-northwest dextral and east-northeast sinistral transpressional faults parallel the North and East Anatolian Faults, and north-northeast-south-southwesttrending normal structures parallel the main compression direction (Gamkrelidze, 1986;Bozkurt and Mittweide, 2001). These structures control large volcanic edifices, which form a trail that extends into the Greater Caucasus ( fig.…”

Section: Eastern Turkey Lesser Caucasus and Northwestern Iranmentioning

confidence: 99%

“…As shown on the 1:500,000 geologic map of Turkey (General Directorate of Mineral Research and Exploration, 2000), volcanic-dominated successions associated with this back-arc or intraoceanic-arc setting during the Oligocene-middle Miocene are preserved across central-eastern Turkey along a narrow and intermittently exposed east-west arcuate belt (Yılmaz, 1993;Kuşcu and others, 2010;Robertson and Mountrakis, 2006;Bozkurt and Mittweide, 2001). Thus, in contrast to the Oligocene-Miocene postsubduction extensional setting in northern Iran and the Lesser Caucasus, structural relations in the Oligocene-Miocene belt of eastern Turkey show that units were emplaced during a still active subduction-related setting (Kaymakci and others, 2010).…”

Section: Magmatismmentioning

confidence: 99%

“…The Menderes Massif underwent greenschist-to amphibolite-grade metamorphism during the Paleocene-Eocene and the Miocene. The first metamorphic episode is related to collision-related burial associated with thrust-sheet load, and the second one is related to extensionderived exhumation (Bozkurt and Mittweide, 2001). The Central Anatolian Crystalline Complex underwent Late Cretaceous greenschist-to granulite-facies metamorphism during collision between the Anatolide-Tauride and Sakarya Terranes along the Izmir-Ankara-Erzincan Suture (Golonka, 2004), which was followed by orogenic collapse and extension.…”

Section: Tectonic Settingmentioning

confidence: 99%

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Porphyry copper assessment of the Tethys region of western and southern Asia: Chapter V in <i>Global mineral resource assessment</i>

Zürcher¹,

Bookstrom²,

Hammarstrom³

et al. 2015

Scientific Investigations Report

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For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment, visit http://www.usgs.gov or call 1-888-ASK-USGS (1-888-275-8747).For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod.To order this and other USGS information products, visit http://store.usgs.gov.Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted material contained within this report.Suggested citation: Zürcher, L., Bookstrom A.A., Hammarstrom, J.M., Mars, J.C., Ludington, S., Zientek, M.L., Dunlap, P., and Wallis, J.C., with contributions from Drew, L.J., Sutphin, D.M., Berger, B.R., Herrington, R.J., Billa, M., Kuşcu, I., Moon, C.J. ,and Richards, J.P., 2015, Porphyry copper assessment of the Tethys region of western and southern Asia: U.S. Geological Survey Scientific Investigations Report 2010-5090-V, 232 p., and spatial data, http://dx.doi.org/10.3133/sir20105090V. AbstractA probabilistic mineral resource assessment of undiscovered resources in porphyry copper deposits in the

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Introduction to the Geology of Turkey—A Synthesis

Cited by 107 publications

References 110 publications

Linking the NE Anatolian and Lesser Caucasus ophiolites: evidence for large-scale obduction of oceanic crust and implications for the formation of the Lesser Caucasus-Pontides Arc

Linking the NE Anatolian and Lesser Caucasus ophiolites: evidence for large-scale obduction of oceanic crust and implications for the formation of the Lesser Caucasus-Pontides Arc

The geodynamics of the Aegean and Anatolia: introduction

Porphyry copper assessment of the Tethys region of western and southern Asia: Chapter V in <i>Global mineral resource assessment</i>

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