U-Pb zircon geochronology of northern metamorphic massifs in the Biga Peninsula (NW Anatolia-Turkey): new data and a new approach to understand the tectonostratigraphy of the region

Tunç, İsmail Onur; Yi̇ği̇tbaş, Erdi̇nç; Şengün, Fırat; Wazeck, Jana; Hofmann, Mandy; Linnemann, Ulf

doi:10.1080/09853111.2013.877242

Cited by 25 publications

(10 citation statements)

References 19 publications

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“…It was detected that the primary depositional age of Çamlıca metamorphics, which had been dated as Paleozoic by previous investigators (Akartuna and Atan, 1978), was Late Ediacaran and/or Early Paleozoic (Tunç et al, 2002) as a result of studies carried out in their equivalences in Biga Peninsula.…”

Section: Resultsmentioning

confidence: 89%

“…In this investigation, 1/25.000 detailed geological and 1/100.000 scaled revision studies were performed throughout the island and significant contributions were made for the geology of the island by new findings obtained. Within this scope; It was detected that the primary depositional age of Çamlıca metamorphics, which had been dated as Paleozoic by previous investigators (Akartuna and Atan, 1978), was Late Ediacaran and/or Early Paleozoic (Tunç et al, 2002) as a result of studies carried out in their equivalences in Biga Peninsula.…”

Section: Resultsmentioning

confidence: 96%

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The GEOLOGY of GÖKÇEADA (ÇANAKKALE)

Sarı¹,

Türkecan²,

Dönmez³

et al. 2015

Bull.Min.Res.Exp.

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The geology and especially the magmatic rocks of Gökçeada, which is the biggest island of Turkey and located at 20 km's west of Biga Peninsula, constitute the subject of this study. Late Ediacaran/Early Paleozoic aged Çamlıca metamorphics which crop out with a tectonic uplift in a narrow area in northwest of Gökçeada are the oldest rocks of the island. Early Eocene aged Karaağaç Formation which is formed by submarine fan deposits unconformably overlies Çamlıca metamorphics. As for the Dağiçitepe volcanic member which is formed by rhyolitic lavas, tuff and tuffites emplaced into Karaağaç Formation cutting Çamlıca metamorphics is the oldest volcanic unit of the study area. On Karaağaç Formation, Koyunbaba Formation has unconformably been deposited which consists of Middle Eocene shallow marine sediments. Then it has conformably been overlain by Soğucak Formation which consists of SE-NW extending reefal limestone. Middle-Upper Eocene aged Ceylan Formation which conformably overlies the Soğucak Formation and the early Oligocene aged Mezardere Formation which conformably overlies Ceylan Formation have been deposited due to turbiditic currents in deep marine environment. Late Eocene(?) -Oligocene aged subvolcanics which cut Mesozoic and Eocene units and emplaced into Eocene aged sedimentary units in the form of crypto dome and dome form the recent rigid topography of the study area and are the second magmatic phase called the "Gökçeada Domes". Diorite-monzonites porphyry which crystallized in lower zones of subvolcanics on the other hand constitutes Mutludere intrusion. In eastern and southern parts of Gökçeada, Late Oligocene Gökçeada ignimbrites are located which are observed in the form of pumice flows on Mezardere Formation. These ignimbrites are then overlain by Early Miocene aged Kesmekaya volcanics which are formed by blocky ash flows. Middle Miocene aged Eşelek volcanics consisting of lava and pyroclastics with composition basaltic andesite and andesite are observed on a large area in east of Gökçeada. Upper Miocene aged Çanakkale Formation which is generally formed by the intercalation of poor consolidated conglomerate, sandstone, siltstone and marl crops out in narrow regions at east, southeast and south of Gökçeada. Quaternary alluvial deposits and debris composed of loose, unconsolidated sand, silt and other sediments unconformably overlie all previous units and complete the succession. Main tectonic structures of Gökçeada are formed by right lateral oblique faults which developed in Neo-tectonic period.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 96%

The GEOLOGY of GÖKÇEADA (ÇANAKKALE)

Sarı¹,

Türkecan²,

Dönmez³

et al. 2015

Bull.Min.Res.Exp.

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“…Ivanov and Kopp 1969;Papadopoulos et al 1989;Magganas et al 1991;Magganas 2002). Although in different proportions, probability density distributions of detrital zircon U-Pb ages of the CRB ) and the Çamlıca-Kemer complex (Tunç et al 2014) indicate mutual age populations at 580-560 and 370-290 Ma. Meinhold and Kostopolous (2013) pointed out to a strong Rhodopean/Strandja affinity for the (meta-)sediments of the eastern CRB.…”

Section: Geological Affinities Between the Rhodope Zone And The Biga mentioning

confidence: 93%

“…Detrital zircons from sediments of the CRB of Greece show a polymodal age distribution with a major population at 370-290 Ma and minor populations at 2,100-1,780, 655-545 and 520-450 Ma Meinhold and Kostopolous 2013). Tunç et al (2014), although in different proportions, have recently determined the same population density in sediments of the CRB of NW Turkey.…”

Section: Geological Backgroundmentioning

confidence: 96%

The Rhodope Zone as a primary sediment source of the southern Thrace basin (NE Greece and NW Turkey): evidence from detrital heavy minerals and implications for central-eastern Mediterranean palaeogeography

Caracciolo

Critelli

Cavazza

et al. 2014

Int J Earth Sci (Geol Rundsch)

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a common origin of tectonic units exposed in NW Turkey (Biga Peninsula) with those of NE Greece and SE Bulgaria (Rhodope region). The entire region displays (1) common extensional signatures, consisting of comparable granitoid intrusion ages, and a NE-SW sense of shear (2) matching zircon age populations between the metapelitic and metamafic rocks of the Circum-Rhodope Belt (NE Greece) and those of the Çamlica-Kemer complex and Çetmi mélange exposed in NW Turkey. Detrital heavy mineral abundances from Eocene-Oligocene sandstones of the southern Thrace basin demonstrate the influence of two main sediment sources mostly of ultramafic/ophiolitic and low-to medium-grade metamorphic lithologies, plus a third, volcanic source limited to the late Eocene-Oligocene. Detrital Cr-spinel chemistry is used to understand the origin of the ultramafic material and to discriminate the numerous ultramafic sources exposed in the region. Compositional and stratigraphic data indicate a major influence of the metapelitic source in the eastern part (Gallipoli Peninsula) during the initial stages of sedimentation with increasing contributions from metamafic sources through time. On the other hand, the western and more external part of the southern Thrace margin (Gökçeada, Samothraki and Limnos) displays compositional signatures according to a mixed provenance from the metapelitic and metamafic sources of the Circum-Rhodope Belt (Çamlıca-Kemer complex and Çetmi mélange). Tectonic restoration and compositional signatures provide constraints on the Palaeogene palaeogeography of this sector of the central-eastern Mediterranean region.Abstract Detrital heavy mineral analysis coupled with a regional geological review provide key elements to reevaluate the distribution of the Rhodope metamorphic zone (SE Europe) in the region and its role in determining the evolution of the Thrace basin. We focus on the Eocene-Oligocene sedimentary successions exposed in the southern Thrace basin margin to determine the dispersal pathways of eroded crustal elements, of both oceanic and continental origins, as well as their different contributions through time. Lithological aspects and tectonic data coupled with geochemistry and geochronology of metamorphic terranes exposed in the area point to Electronic supplementary material The online version of this article (

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“…However, the geology is dominated by magmatic rocks, occupying large areas. Late Ediacaran/Early Paleozoic Çamlıca metamorphic rocks (Okay et al, 1990;Tunç et al, 2002) are the oldest rocks of the island and consist of sericiticschist, chloritic-schist, slate and marble. Lower Eocene Karaağaç formation that is composed of submarine fan deposits unconformably overlies the Çamlıca metamorphics.…”

Section: Regional Geologymentioning

confidence: 99%

Geochemical Features and Petrogenesis of Gökçeada Volcanism, Çanakkale, NW Turkey

Şen¹,

Sarı²,

Şen³

et al. 2019

Bulletin of the Mineral Research and Exploration

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Gökçeada Island, which is situated west of Biga Peninsula, has widespread magmatism with variable ages. Lower-Middle Eocene Dağiçitepe volcanics are the oldest volcanic unit in the island and consist of lavas, tuff-tuffites. They are influenced by alteration and almost all minerals, except quartz, are transformed into other minerals. Lower Oligocene Gökçeada andesitic lava/ domes exhibiting hypocrystalline porphyric texture, are the products of NE-SW trending domes/ cryptodomes. The phenocrysts assemblages consist of plagioclase, hornblende, clinopyroxene ± biotite and quartz. Middle Miocene Eşelek volcanics, which occur as lavas and pyroclastic rocks, exhibit hypocrystalline porphyric and intersertal textures. They are composed of plagioclase, hornblende and clinopyroxene crystals. Rhyolitic Dağiçitepe volcanics and andesitic Gökçeada lava/domes have calc-alkaline, andesitic Eşelek volcanics have tholeiitic character. They have geochemical features similar to subduction-related magmas. Lower-Middle Eocene Dağiçitepe volcanics are the products of syn-collisional magmas that have undergone processes of crustal contamination due to thickened crust. Whereas, Lower Oligocene Gökçeada andesitic lava/domes are the products of post-collisional magmas and were derived from metasomatized lithospheric mantle. Middle Miocene Eşelek volcanics were also derived from lithospheric mantle but, the mantle source generating Eşelek volcanics were relatively depleted over time. Geochemical data demonstrate the decreasing role of subduction signature and crustal contamination during the genesis and evolution of Gökçeada volcanics from Lower-Middle Eocene to Middle Miocene.

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U-Pb zircon geochronology of northern metamorphic massifs in the Biga Peninsula (NW Anatolia-Turkey): new data and a new approach to understand the tectonostratigraphy of the region

Cited by 25 publications

References 19 publications

The GEOLOGY of GÖKÇEADA (ÇANAKKALE)

The GEOLOGY of GÖKÇEADA (ÇANAKKALE)

The Rhodope Zone as a primary sediment source of the southern Thrace basin (NE Greece and NW Turkey): evidence from detrital heavy minerals and implications for central-eastern Mediterranean palaeogeography

Geochemical Features and Petrogenesis of Gökçeada Volcanism, Çanakkale, NW Turkey

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