Tectonic setting of some Paleozoic metamorphics in northern Anatolia

In northern Anatolia along the Izmir-Ankara-Erzurum Suture, the low-grade metamorphics display strong protolithologic similarities. However, the classification of these metamorphics with respect to ' their prototithological stratigraphy, internal organization, age and boundary relations are still not clear due to limited number of metamorphic studies. Amasya region in NW Central Anatolia is selected and studied to shed some light onto the metamor-phic problem in northern Anatolia. TectonostratigraphicaUy, three distinctly different metamorphic rock assemblages are differentiated on the basis of their internal organizations and protolithologies, as bottom to top; 1) grayish-black schists with quartz boudins and veins, 2) green schists, 3) green schists with marble blocks and/or boudins. The lower unit is originally a clastic sequence, made of shales, sandstones, cherts and calcareous clas-tics. It is t.ectonically overlain by green schists protoliths of which are volcanic and carbonate rocks. The upper unit, composed of huge mar-ble blocks and/or lenses embedded within a volcanic sequence. The protoliths of greenschist facies metamorphics are interpreted as a magmatic arc-related basinal being metamorphosed by regional dynamothermal metamorphism during pre-Permian. These meta-morphics can protolithologically be correlated with Agvanis and Yenise-hir low-grade metamorphics which all are believed to be in Carboniferous age.
H.Ü. yerbilimleri


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Ahmed, Nouman; Yılmaz, İsmail Ömer; Department of Geological Engineering (2016)
The Yılanlı Formation of Upper Devonian to Lower Carboniferous succession of the Zonguldak region were measured from Gökgöl section near Zonguldak city, NW Turkey. The studied section dominantly consists of limestone of grey – dark grey color with thin to thick beds of black shale and claystone. A variety of lithofacies identified in the studied section including limestone, dolomite, shale, claystone and mudstone. Nine microfacies are identified as grainstone, packstone, wackstone, mudstone, bindstone, ruds...
TOPRAK, V; Göncüoğlu, Mehmet Cemal (1993-12-01)
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Tectono-stratigraphy of the Cankiri Basin: Late Cretaceous to early Miocene evolution of the Neotethyan Suture Zone in Turkey
Kaymakcı, Nuretdin; White, Stanley H.; van Dijk, Paul M. (2009-01-01)
The Cankiri Basin straddles the Izmir-Ankara-Erzincan Suture Zone which demarcates the former position of the northern branch of the Neotethys. It includes more than 3 km of pre-Middle Miocene in-fill related to late Cretaceous to pre-Middle Miocene evolution of the region. The basin has developed on the upper Cretaceous subduction complex and arc related basins of the Neotethys Ocean. The basin fill includes an upper Cretaceous forearc sequence overlain by Paleocene with a local unconformity. The upper Cre...
Granitoid rocks of the southern Menderes Massif (southwestern Turkey): field evidence for Tertiary magmatism in an extensional shear zone
Bozkurt, Erdin (2004-02-01)
Recent field campaign in the southern Menderes Massif in southwestern Turkey revealed that the socalled 'core of the massif comprises two distinct types of granitoid rocks: an orthogneiss (traditionally known as augen gneisses) and leucocratic metagranite, where the latter is intrusive into the former and the structurally overlying 'cover' schists. These differ from one another in intensity of deformation, degree of metamorphism and kinematics. The orthogneiss display penetrative top-to-the-N-NNE fabrics fo...
Citation Formats
F. B. Rojay, “Tectonic setting of some Paleozoic metamorphics in northern Anatolia,” H.Ü. yerbilimleri, pp. 109–118, 1997, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/84933.