Tectonomagmatic Evolution of Bimodal Plutons in the Central Anatolian Crystalline Complex, Turkey

Crustal homogenization revealed by U–Pb zircon ages and Hf isotope evidence from the Late Cretaceous granitoids of the Agaçören intrusive suite (Central Anatolia/Turkey)

“…The intrusion of granitoids in central Anatolia can be directly related to the closure of the Tethys Ocean (Göncüoglu et al 1997, and these magmatic bodies thus provide key information on the geotectonic evolution of Anatolia and its surrounding area. Existing geochronological data have shown that these granitoids are Late Cretaceous (e.g., Ataman 1972;Göncüoglu 1986;Kadioglu et al 2003;Köksal et al 2004Köksal et al , 2007Ilbeyli et al 2004;Boztug et al 2007a, b, c). Petrogenesis of the central Anatolian granitoids (CAG) has been the subject of numerous geochemical and geochronological studies that have resulted in different models for their evolution (e.g., Göncüoglu and Türeli 1994;Boztug 1998Boztug , 2000Düzgören-Aydin et al 2001;Ilbeyli et al 2004;Ilbeyli 2005;Kadioglu et al 2003Kadioglu et al , 2006Boztug et al 2007a, b, c), ranging from arc to collisional/ post-collisional magmatism.…”

Geological, petrological, and geodynamical characteristics of the Karacaali Magmatic Complex (Kırıkkale) in the Central Anatolian Crystalline Complex, Turkey

“…At the same time, anorthositic magma was formed by differentiation of underplated basaltic magma and accumulation of buoyant plagioclase at the top of deep-seated magma chambers (Figures 10f and 10i). Thermal instability produced convection, mechanical interaction, and hybridization among mafic, anorthositic, and felsic magmas ( Figures 10g and 10j), as suggested by Kadıoğlu et al (2003). It is widely accepted that most continental collisions initiate with the attempted subduction of the continental passive margin, which follows the subducted oceanic lithosphere into the trench (Davies and von Blanckenburg, 1995).…”

“…Kadıoğlu and Dilek (2010) suggested that partial melting of the subduction metasomatized mantle beneath the CACC produced the granitic suites of the Andean-type magmatism. It is mainly debated that the subduction-related characteristics of the CACC magmatics are thought to be the result of northeastward dipping subduction of the oceanic lithosphere of the Inner Tauride basin (in the present coordinate system) (Kadıoğlu et al, 2003(Kadıoğlu et al, ,2006Kadıoğlu and Dilek, 2010). The majority of the CACC plutons have intrusion (emplacement) ages of around the Campanian-Maastrichtian [e.g., Terlemez granitoid around 81.5 ± 1.9 Ma (Yalınız et al, 1999); I-type Baranadağ and A-type Çamsarı granitoids during the Campanian (74.0 ± 2.8 and 74.1 ± 0.7 Ma, respectively, in ].…”

The Nature of the Crustal Structure of the Eastern Anatolian Plateau, Turkey

“…Almost all of the researchers who have studied the central Anatolian granitoids suggest a collisionalrelated genesis [49−51] except [52], who proposed an Andeantype arc-related origin.…”