Karakaya Karmaşığı içerisindeki bazik volkanitlerin jeokimyasalözelliklerinin yeniden değerlendirilmesi

Date

2009-01-01

Author

Sayıt, Kaan
Göncüoğlu, Mehmet Cemal

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The Karakaya Complex, which lies within the pre-Liassic basement of the Sakarya Composite Terrane extending on a belt from the Biga Peninsula to northeastern Anatolia, comprises various types of volcanic rocks whose ages, origins and geochemical features have been interpreted in different ways. The geochemical data acquired from the previous studies on these volcanic rocks are here re-evaluated in order to unravel the petrology and geochemistry of the Karakaya Complex. The tectonic discrimination diagrams based on the relatively immobile elements indicate that the volcanic rocks within the Karakaya Complex constitute three main groups. These are alkali basalts, subalkali basalts and transitional basalts between alkali and sub-alkali basalts. In the tectonomagmatic discrimination diagrams, these basic volcanic rocks display mostly a within-plate affinity, although a small portion reflects midoceanic ridge and island arc characteristics. In spite of the geodynamic interpretations that have been suggested so far, there is no consensus on the tectonic settings. This is mainly due to insufficient rare-earth element data and limited correlation. Thus a detailed geochemical discrimination and reliable geodynamic interpretation should be based on a better assessment of the ages of different volcanic rocks from different subunits of the Sakarya Composite Terrane and on more detailed geochemical data including rare earth elements and isotopes

Subject Keywords

Karakaya karmaşığı, Jeodinamik, Jeokimya, Volkanik kayalar, Karakaya complex, Geochemistry, Geodynamics, Volcanic rocks

URI

https://hdl.handle.net/11511/71266

Journal

Yerbilimleri

Collections

Department of Geological Engineering, Article

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Citation Formats

K. Sayıt and M. C. Göncüoğlu, “Karakaya Karmaşığı içerisindeki bazik volkanitlerin jeokimyasalözelliklerinin yeniden değerlendirilmesi,” Yerbilimleri, pp. 181–191, 2009, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/71266.