Geçityaka Köyü (Tunceli) Çevresindeki Elazığ Magmatik Kompleksi’ne Ait Kayaçların Petrografik ve Jeokimyasal Özellikleri

Yıl 2022, , 680 - 694, 31.05.2022

Abdullah Sar , Mustafa Eren Rizeli , Mehmet Ali Ertürk

https://doi.org/10.31202/ecjse.993333

Öz

Bu çalışmada Tunceli ili Geçityaka köyü ve çevresindeki Elazığ Magmatik Kompleksi’ne ait kayaçların petrografik ve jeokimyasal özellikleri incelenmiştir. İnceleme konusunu oluşturan kayaçlar, granit, granodiyorit, kuvars monzonit ve monzodiyoritler ile temsil edilmektedir. Petrografik incelemelere göre kayaçlarda granitik, porfirik, porfirik holokristalen ve poiklitik dokular hâkimdir. Tüm kayaç jeokimyasal verilerine göre, inceleme konusunu oluşturan magmatitler I tipi granit karakterinde ve toleyitikten şoşonitiğe kadar değişen bileşimsel dağılımlar göstermektedir. İlksel mantoya ve kondrite göre normalize edilmiş spider diyagramlarında büyük iyon yarıçaplı elementler ve hafif nadir toprak elementleri, yüksek alan enerjili elementler ve ağır nadir toprak elementlerine oranla daha fazla zenginleşmiştir. İncelenen magmatik kayaçların tektonik ortamı için volkanik yay granitleri/çarpışma sonrası alan önerilmektedir.

Anahtar Kelimeler

Elazığ magmatik kompleksi, jeokimya, petrografi, Tunceli

Teşekkür

Petrografi çalışmaları kapsamında ince kesitlerin hazırlanmasında emeği geçen Fırat Üniversitesi Jeoloji Mühendisliği Bölümü, laboratuvar personeline teşekkür ederiz.

Petrographic and Geochemical Characteristics of the Rocks Belonging to the Elazig Magmatic Complex in the Geçityaka region (Tunceli)

Öz

In this study, the petrographic and geochemical properties of the rocks belonging to the Geçityaka province (Tunceli) and the surrounding Elazığ Magmatic Complex were investigated. The rocks that are the subject of the study are represented by granite, granodiorite, quartz monzonite and monzodiorite. According to petrographic examinations, granitic, porphyric, porphyric holocrystalline and polyclitic textures are dominant in the rocks. According to the geochemical data of the whole rock, the magmatites that are the subject of the study show I type granite character and compositional distributions ranging from tholeiitic to shoshonitic. In spider diagrams normalized to the primitive mantle and chondrite, large ion lithophile elements and light rare earth elements are more enriched than high field strength elements and heavy rare earth elements. The tectonic environment of the rocks that are the subject of the study fall into the volcanic arc granites/post-collision zone areas.

Anahtar Kelimeler

Elazığ magmatic complex, geochemistry, petrography, Tunceli

Kaynakça

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