Üst Manto Kökenli Geç Kretase Yaşlı Elazığ Magmatik Kayaçlarının Sr-Nd İzotop Bileşimi ve Petrojenetik Özellikleri

Sevcan Kürüm; Ayşe Kübra Murat

doi:10.29132/ijpas.1037368

Araştırma Makalesi

Üst Manto Kökenli Geç Kretase Yaşlı Elazığ Magmatik Kayaçlarının Sr-Nd İzotop Bileşimi ve Petrojenetik Özellikleri

Yıl 2022, , 117 - 142, 30.06.2022

Sevcan Kürüm , Ayşe Kübra Murat

https://doi.org/10.29132/ijpas.1037368

Öz

Geç Kretase yaşlı Elazığ Magmatitleri, Elazğ yakın D-GD’sunda plütonik ve volkanik kayaçlarla temsil edilir. Granit/granodiyorit ve diyorit bileşimindeki plütonik kayaçlara kıyasla, çok daha geniş yayılımlı olan volkanik kayaçlar, kristal ve litik tüf bileşimli piroklastik kayaçlar ile lavlardan oluşmuştur. Piroklastik kayaçlarla ardalanmalı olarak bulunan lavlar andezit, bazalt, bazaltik andezit, spilitik bazalt, dasit ve riyolit bileşimlidir. SiO2 içeriğine göre, bazikten asidik bileşime kadar değişen plütonik (48.13-73.40) ve volkanik (51.47-74.84) kayaçlar, element içerikleri bakımından birbirleriyle genel olarak uyumludur. Subalkali özellikli ve büyük iyon yarıçaplı element ve hafif nadir toprak elementler bakımından farklı oranlarda zenginleşme gösteren tüm kayaçlar Nb, Ta ve Ti bakımından belirgin negatif anomali göstermeleri ile yitimle ilişkili kayaçların jeokimyasal özelliğini yansıtmaktadır. Bu kayaçlar 87Sr/86Sr(i) (0.704170 - 0.700165) ve 143Nd/144Nd(i) izotop (0.512669 - 0.512896) değerlerine göre tüketilmiş manto bölgesini işaret ederken, elementlerin diyagramlardaki dağılımları bu kayaçların, volkanik yay ortamında, yitim etkisi ile oluşmuş sıvılarla beraber, sediman ergiyikleri ile metasomatize edilmiş ve yitimle zenginleşmiş, litosferik kaynak kökenli ergiyikten oluştuğunu göstermektedir. Ancak tüm kayaçların değişken ergime koşulları ve farklı oranlardaki kısmı ergimelerine karşın, bu kayaçların kökeninde kabuksal kirlenmenin önemli etken olduğu görülür.

Anahtar Kelimeler

Elazığ Magmatitleri, kabuksal kirlenme, litosferik kaynak, Sr-Nd izotop jeokimyası, yitim zonu

Destekleyen Kurum

Fırat Üniversitesi

Proje Numarası

FÜBAP-MF-16. 45

Kaynakça

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Sr-Nd Isotope Composition and Petrogenetic Properties of Upper Mantle Originated Late Cretaceous Elazığ Magmatic Rocks

Yıl 2022, , 117 - 142, 30.06.2022

Sevcan Kürüm , Ayşe Kübra Murat

https://doi.org/10.29132/ijpas.1037368

Öz

Late Cretaceous aged Elazığ magmatites are represented by plutonic and volcanic rocks in the near E-SE of Elazığ. Compared to plutonic rocks in granite/granodiorite and diorite composition, volcanic rocks are much more widely distributed and consist of pyroclastic rocks with crystalline and lithic tuff composition and lavas. The lavas intercalated with pyroclastic rocks are composed of andesite, basalt, basaltic andesite, spilitic basalt, dacite and rhyolite. Plutonic (48.13-73.40) and volcanic (51.47-74.84) rocks, varying from basic to acidic in composition according to their SiO2 content, are generally compatible with each other in terms of elemental content. All rocks are subalkaline and show enrichment at different rates in terms of large ion radius elements and light rare earth elements. These rocks show distinct negative anomalies in terms of Nb, Ta and Ti and reflect the geochemical characteristics of subduction-related rocks. While these rocks indicate the depleted mantle region according to the 87Sr/86Sr(i)(0.704170 - 0.700165) and 143Nd/144Nd(i)isotope values (0.512669 - 0.512896), the distributions of the elements in the diagrams indicate that these rocks are together with the liquids formed by the subduction effect in the volcanic arc environment, shows that it is composed melt of the lithospheric origin metasomatized by sediment melts and enriched by subduction. However, despite the variable melting conditions and partial melting of all rocks at different rates, it is seen that crustal contamination is an important factor in the origin of these rocks.

Anahtar Kelimeler

Crustal contamination, Elazığ Magmatites, lithospheric source, Sr-Nd isotope geochemistry, subduction zone

Proje Numarası

FÜBAP-MF-16. 45

Kaynakça

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Toplam 97 adet kaynakça vardır.

Ayrıntılar

Birincil Dil	Türkçe
Konular	Mühendislik
Bölüm	Makaleler
Yazarlar	Sevcan Kürüm 0000-0001-6121-5564 Ayşe Kübra Murat Bu kişi benim 0000-0003-2011-2037
Proje Numarası	FÜBAP-MF-16. 45
Yayımlanma Tarihi	30 Haziran 2022
Gönderilme Tarihi	16 Aralık 2021
Kabul Tarihi	19 Nisan 2022
Yayımlandığı Sayı	Yıl 2022

Kaynak Göster

APA	Kürüm, S., & Murat, A. K. (2022). Üst Manto Kökenli Geç Kretase Yaşlı Elazığ Magmatik Kayaçlarının Sr-Nd İzotop Bileşimi ve Petrojenetik Özellikleri. International Journal of Pure and Applied Sciences, 8(1), 117-142. https://doi.org/10.29132/ijpas.1037368
AMA	Kürüm S, Murat AK. Üst Manto Kökenli Geç Kretase Yaşlı Elazığ Magmatik Kayaçlarının Sr-Nd İzotop Bileşimi ve Petrojenetik Özellikleri. International Journal of Pure and Applied Sciences. Haziran 2022;8(1):117-142. doi:10.29132/ijpas.1037368
Chicago	Kürüm, Sevcan, ve Ayşe Kübra Murat. “Üst Manto Kökenli Geç Kretase Yaşlı Elazığ Magmatik Kayaçlarının Sr-Nd İzotop Bileşimi Ve Petrojenetik Özellikleri”. International Journal of Pure and Applied Sciences 8, sy. 1 (Haziran 2022): 117-42. https://doi.org/10.29132/ijpas.1037368.
EndNote	Kürüm S, Murat AK (01 Haziran 2022) Üst Manto Kökenli Geç Kretase Yaşlı Elazığ Magmatik Kayaçlarının Sr-Nd İzotop Bileşimi ve Petrojenetik Özellikleri. International Journal of Pure and Applied Sciences 8 1 117–142.
IEEE	S. Kürüm ve A. K. Murat, “Üst Manto Kökenli Geç Kretase Yaşlı Elazığ Magmatik Kayaçlarının Sr-Nd İzotop Bileşimi ve Petrojenetik Özellikleri”, International Journal of Pure and Applied Sciences, c. 8, sy. 1, ss. 117–142, 2022, doi: 10.29132/ijpas.1037368.
ISNAD	Kürüm, Sevcan - Murat, Ayşe Kübra. “Üst Manto Kökenli Geç Kretase Yaşlı Elazığ Magmatik Kayaçlarının Sr-Nd İzotop Bileşimi Ve Petrojenetik Özellikleri”. International Journal of Pure and Applied Sciences 8/1 (Haziran 2022), 117-142. https://doi.org/10.29132/ijpas.1037368.
JAMA	Kürüm S, Murat AK. Üst Manto Kökenli Geç Kretase Yaşlı Elazığ Magmatik Kayaçlarının Sr-Nd İzotop Bileşimi ve Petrojenetik Özellikleri. International Journal of Pure and Applied Sciences. 2022;8:117–142.
MLA	Kürüm, Sevcan ve Ayşe Kübra Murat. “Üst Manto Kökenli Geç Kretase Yaşlı Elazığ Magmatik Kayaçlarının Sr-Nd İzotop Bileşimi Ve Petrojenetik Özellikleri”. International Journal of Pure and Applied Sciences, c. 8, sy. 1, 2022, ss. 117-42, doi:10.29132/ijpas.1037368.
Vancouver	Kürüm S, Murat AK. Üst Manto Kökenli Geç Kretase Yaşlı Elazığ Magmatik Kayaçlarının Sr-Nd İzotop Bileşimi ve Petrojenetik Özellikleri. International Journal of Pure and Applied Sciences. 2022;8(1):117-42.

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