Geochemistry and Pb Isotopes from the Jan Mayen Fracture Zone and the Extinct Aegir Ridge

Sayıt, Kaan
Hanan, Bb
Ito, G
Howell, Sm
Vogt, Pr
Breivik, Aj
Mjelde, R
Pedersen, Rb


Geochemistry and Zircon U-Pb Dates of Felsic-Intermediate Members of the Late Cretaceous Yuksekova Arc Basin: Constraints on the Evolution of the Bitlis-Zagros Branch of Neotethys (Elazig, E Turkey)
Ural, Melek; Sayıt, Kaan; KORALAY, OSMAN ERSİN; Göncüoğlu, Mehmet Cemal (2021-08-01)
During the Late Cretaceous in the Eastern Mediterranean, the northern branch of the southern Neotethys was closed by multiple northward subductions. Of these, the most northerly located subduction created the Baskil continental arc at around 82-84 Ma. The more southerly and intra-oceanic subduction, on the other hand, produced an arc-basin system, the Yuksekova Complex, as early as the late Cenomanian-early Turonian. The abundant and relatively well-studied basaltic rocks of this complex were intruded by dy...
Geochemistry and U-Pb ages from the Kosdag Metavolcanics in the southern Central Pontides (Turkey): Complementary data for early Late Cretaceous island arc development in the Northern Neotethys
BERBER, Faruk; Sayıt, Kaan; Göncüoğlu, Mehmet Cemal (2021-01-01)
The Kosdag Metavolcanics (KMs) in the southern Central Pontides are exposed between the Izmir-Ankara-Erzincan Suture Belt in the south and the Sakarya Composite Terrane in the north. They comprise an approximately 40-km-long tectonic unit, bounded by the splays of the North Anatolian Transform Fault in the north and the Kizilca Thrust in the south. The basement of the unit mainly consists of metabasalts, metaandesites, and metarhyolites, with well-developed blastomylonitic textures, which are interlayered b...
Berber, Faruk; Sayıt, Kaan; Department of Geological Engineering (2021-12-27)
The Kösdağ Metavolcanics (KM) in the southern Central Pontides crops out between the Izmir-Ankara-Erzincan Suture Zone (IAESZ) in the south and the Sakarya Composite Terrane in the north. The unit is represented by a low-grade metamorphic assemblage including meta-basics, meta-intermediates, and meta-felsics, interlayered with recrystallized limestone, mudstone, and chert. While the unit is bounded to the north by the North Anatolian Fault Zone (NAFZ), the Dikmen Formation stratigraphically overlie the unit...
Geochemistry and apatite U–Pb geochronology of alkaline gabbros from the Nodoushan plutonic complex, Sanandaj–Sirjan Zone, Central Iran: Evidence for Early Palaeozoic rifting of northern Gondwana
Alavijeh, Badieh Shahsavari; Rashidnejad‐omran, Nematollah; Toksoy Köksal, Fatma; Chew, David; Szopa, Krzysztof; Ghalamghash, Jalil; Aleksandra, Gaweda (2019-07-01)
Geochemistry and Petrology of the Kösedağ metavolcanic rocks Sakarya Composite Terrane Northern Turkey
Berber, Faruk; Göncüoğlu, Mehmet Cemal; Sayıt, Kaan (2015-08-21)
Central Pontides in Northern Turkey is a key area, comprising variably metamorphosed and deformed low-grade metavolcanic rocks. In this study we report the geochemical characteristics of the Kösedağ metavolcanics (KMV), and infer their tectonomagmatic evolution. The KMV include blastomylonitic volcanic rocks covered by the Cretaceous clastics and carbonates. The chemical composition of the KMV ranges from basalt, andesite to dacite. The evolved magma compositions reflect fractionation of plagioclase, Fe-Ti ...
Citation Formats
K. Sayıt et al., “Geochemistry and Pb Isotopes from the Jan Mayen Fracture Zone and the Extinct Aegir Ridge,” presented at the AGU, California, Amerika Birleşik Devletleri, 2011, Accessed: 00, 2022. [Online]. Available: