Kıtasal çarpışma Bazalt Doğu Anadolu Taşlıçay Kabuksal kirlenme
Van Yüzüncü Yıl Üniversitesi Bilimsel Araştırma Projeleri Başkanlığı
2010-FBE-YL 145
This study aimed to determine the petrographic and geochemical features of the Plio-Quaternary Gözucu (Taşlıçay-Ağrı) volcanics. These volcanics have subalkaline, calc-alkaline, high-K-series and shoshonitic features and are composed of basalt, andesite, trachyandesite, trachydacite and dacites. The Gözucu volcanics exhibit enrichment in light rare earth elements (LREE) and large ion lithophile elements (LILE) while showing depletion in heavy rare earth elements (HREE) and high field strength elements (HFSE). The average Sr and Ba values of Gözucu volcanics are close to continental crust values (Sr-379 ppm Ba-639 ppm), which means that these rocks were contaminated by the continental crust during formation. Low Nb/La (5.13 ppm) and high Ba/Rb (16.75 ppm) ratios indicate that the contribution of sediments was more than that of fluids during the contamination process of the Gözucu volcanics. Positive and negative trends of major and trace elements in the variation diagrams indicate fractional crystallization and a single mantle source. The Gözucu volcanics occurred with a partial melting of the spinel-rich lithospheric mantle source with 0.1-3% partial melting in the continental arc environment after the collision.
Continental collision Basalt Eastern Anatolia Taşlıçay Crustal contamination
2010-FBE-YL 145
Birincil Dil | Türkçe |
---|---|
Konular | Yer Bilimleri ve Jeoloji Mühendisliği (Diğer) |
Bölüm | Makaleler - Articles |
Yazarlar | |
Proje Numarası | 2010-FBE-YL 145 |
Yayımlanma Tarihi | 10 Şubat 2020 |
Gönderilme Tarihi | 23 Mayıs 2019 |
Kabul Tarihi | 16 Eylül 2019 |
Yayımlandığı Sayı | Yıl 2020 Cilt: 63 Sayı: 2 |
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