Geochemical characteristics and age of metamorphic sole rocks within a Neotethyan ophiolitic mélange from Konya region (central southern Turkey)

Daşçı, Hatice Tuğba; Parlak, Osman; Nurlu, Nusret; Billor, Zeki

doi:10.1080/09853111.2014.979532

Cited by 14 publications

(5 citation statements)

References 82 publications

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“…Recently, Candan et al (2016) reported a zone of Carboniferous metagranites with ages ranging from 331 to 315 Ma. They interpreted these as products of a south-dipping Palaeo-Tethyan subduction zone, an interpretation that corroborates the earlier model by Şengör et al (1980) and Şengör and Yılmaz (1981), although Candan et al (2016) think that the Palaeo-Tethyan subduction had ceased by the late Permian, a conclusion which contradicts the presence of granitoids in the Menderes (and also in the Rhodope-Pontide and Sakarya Continent as mentioned above) with ages between 246 and 235 Ma (Dannat, 1997;Koralay et al 2001;Erdin Bozkurt, written communication, 25th May 2018).…”

Section: The Bolkardağı Unitsupporting

confidence: 77%

The phanerozoic palaeotectonics of Turkey. Part I: an inventory

Şengör¹,

Lom

Sunal³

et al. 2019

Med. Geosc. Rev.

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Section: The Bolkardağı Unitsupporting

confidence: 77%

The phanerozoic palaeotectonics of Turkey. Part I: an inventory

Şengör¹,

Lom

Sunal³

et al. 2019

Med. Geosc. Rev.

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“…They comprise the Hatip ophiolitic mélange including harzburgite blocks (locally with high-grade metamorphic sole rocks) and the Ҫayırbağ ophiolite of Late Cretaceous age. Recently obtained 40 Ar/ 39 Ar data from amphibolites of the metamorphic sole yielded ages ranging from 87.04 ± 0.36 to 84.66 ± 0.30 Ma and were interpreted to date the timing of metamorphism (Daşçı et al 2015). Overall, the autochthonous and allochthonous rocks in the study area were overprinted by multi-phase Alpine deformation (e.g.…”

Section: Corals and Fusulinids From Limestone Blocks Yielded Late Sil...mentioning

confidence: 86%

Evolution of the Palaeotethys in the Eastern Mediterranean: a multi-method approach to unravel the age, provenance and tectonic setting of the Upper Palaeozoic Konya Complex and its Mesozoic cover sequence (south-central Turkey)

Löwen

Meinhold

Arslan

et al. 2019

International Geology Review

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Thirteen siliciclastic sediments from the Upper Palaeozoic Konya Complex and its Mesozoic cover were studied by a multi-method approach combining thin-section petrography, bulkrock geochemistry, mineral chemistry of rutile, and U-Pb geochronology of detrital zircons.Provenance sensitive data of samples from the Upper Palaeozoic Halıcı Formation indicate sediment supply from mainly low-to medium-grade metamorphosed sedimentary rocks of felsic character, while the contribution from volcanic rocks was rare. The detrital zircon record of sediments from the Halıcı Formation documents sediment supply from different sources and excludes a similar provenance. Some samples show great similarities with Palaeozoic sandstones from the cover sequence of the Saharan Metacraton and the Arabian-Nubian Shield, while the other samples indicate a provenance that must be sought in units with a southern Eurasian affinity. The upper limit for sediment deposition in the Halıcı Formation is mostly constrained by Early Palaeozoic zircon populations; however, sediment accumulation in Pennsylvanian-Cisuralian time is more likely, contemporaneously with the Upper Palaeozoic succession on the Karaburun Peninsula (western Turkey). The provenance of sediments from the Upper Triassic Ardıçlı Formation remains enigmatic, but the source should be sought nonetheless in units close to the depositional site. In any case, detrital zircon age spectra and compositional data exclude recycling of underlying rock units (i.e. Halıcı Formation). Overall, our new provenance data reveal great similarities between the Konya Complex and comparable units (Chios, Karaburun) but also highlight distinct differences in terms of sediment composition and provenance.

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“…It is generally accepted that metamorphic soles form at the beginning of intraoceanic subduction, representing small pieces of a down-going oceanic slab, which are afterwards detached from the upper part of the subducting slab, accreted below the hot upper plate mantle wedge, metamorphosed and obducted together with ophiolites on the continental margin (Daşçi et al, 2014;Soret et al, 2019).…”

Section: Origin Of the Metamorphic Sole Amphibolite In Banovina Ophio...mentioning

confidence: 99%

Geochemistry and Petrography of Metamorphic Sole Amphibolites From the Slatina Quarry, Mt. Zrinska Gora, Croatia

Putak Juriček,

Garašić

2024

MGPB

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The investigated Mt. Zrinska Gora amphibolites are a part of the metamorphic sole of the Banovina ophiolite complex. Mineral composition and other petrographic characteristics of amphibolites and adjacent peridotite were investigated by polarised microscopy and chemical analyses of rocks were obtained by a combination of inductively coupled plasma mass and emission spectrometry. The main minerals in these garnet-bearing amphibolites are amphibole and plagioclase with accessory garnet, sphene, spinel, opaque mineral ± clinopyroxene ± quartz ± actinolite ± zoisite-clinozoisite ± prehnite ± pumpelyite and ± clay minerals. Kelyphitic corona is developed around garnet. The amphibolites have nematoblastic, nematogranoblastic, porphyroblastic and porphyroclastic textures and homogenous to foliated structures. The presence of clinopyroxene in some of the investigated amphibolites points to their possible formation under P‒T conditions of upper amphibolite facies. The greenschist facies retrograde metamorphism and subsequent surface weathering of amphibolites is also evident. The chemical composition of rocks indicates that protoliths of most amphibolites were tholeiitic basalts, initially formed in island arcs and the adjoining back-arc basins. During the intraoceanic subduction in Jurassic Neotethys Ocean basalts/basaltic tuffs of island arc tholeiite affinity and back-arc basin basalts, positioned on the top of the down-going oceanic slab, were welded to the base of the hot over-riding mantle wedge, metamorphosed to amphibolite rocks and obducted together with ophiolites on the Adria continental margine. The new described amphibolite type having peridotite protolith characteristics originated as the consequence of the hydration of the bottom part of the overlying mantle wedge.

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Geochemical characteristics and age of metamorphic sole rocks within a Neotethyan ophiolitic mélange from Konya region (central southern Turkey)

Cited by 14 publications

References 82 publications

The phanerozoic palaeotectonics of Turkey. Part I: an inventory

The phanerozoic palaeotectonics of Turkey. Part I: an inventory

Evolution of the Palaeotethys in the Eastern Mediterranean: a multi-method approach to unravel the age, provenance and tectonic setting of the Upper Palaeozoic Konya Complex and its Mesozoic cover sequence (south-central Turkey)

Geochemistry and Petrography of Metamorphic Sole Amphibolites From the Slatina Quarry, Mt. Zrinska Gora, Croatia

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