Yıl 2018, Cilt , Sayı 157, Sayfalar 121 - 152 2018-12-15

Mineral chemistry, whole-rock geochemistry and petrology of Eocene I-type shoshonitic plutons in the Gölköy area (Ordu, NE Turkey)
Gölköy yöresi (Ordu, KD Türkiye) Eosen yaşlı I-tipi şoşonitik plütonların mineral kimyası, tüm-kayaç jeokimyası ve petrolojisi

İrfan TEMİZEL [1] , Emel ABDİOĞLU YAZAR [2] , Mehmet ARSLAN [3] , Abdullah KAYGUSUZ [4] , Zafer ASLAN [5]

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The Eocene intermediate to felsic plutons are widespread in varying sizes and compositions throughout the Eastern Pontides Orogenic Belt in NE Turkey. Of these, two monzonitic bodies (namely the Eriko Tepe and Göl Tepe Plutons) in the Gölköy (Ordu) area, extend nearly in the orientation of NW-SE and E-W and were emplaced into the Upper Cretaceous and/or Eocene volcanic and sedimentary rocks. Petrographically, the studied monzonitic plutons are compositionally fine to medium grained monzonite, monzodiorite and subordinate quartz-monzonite. They consist of plagioclase (An35-67), K-feldspar (Or61-96), quartz, clinopyroxene (Wo28-49En35-51Fs10-25), biotite (Mg#: 0.53-0.73) ± hornblende (Mg#: 0.65-0.82), Fe-Ti oxide with monzonitic, poikilitic, perthitic, rare antirapakivi and graphic textures. Mineral thermobarometer estimations imply that the plutons were crystallized in P-T conditions of mid to shallow crustal levels. Petrochemically, these monzonitic plutons show post-collisional, I-type, metaluminous (A/CNK=0.76-0.93) and shoshonitic features. The whole-rock major oxide and trace element variations suggest that fractionational crystallization played a significant role in the evolution of these monzonitic plutons. The primitive mantle-normalized trace element patterns of the studied plutons are similar to each other with enrichment in large ion lithophile elements, Th, Ce and negative Nb and Ti anomalies. Moreover, the chondrite-normalized rare earth element plots of the plutons show moderately enriched concave-shaped patterns (LaN/LuN=9.3-12.6) with negative Eu anomalies (EuN/Eu*=0.69-0.84), all of which imply plagioclase and clinopyroxene ± hornblende fractionations during their evolution. The geochemical data suggest that the monzonitic plutons have evolved from parental magmas derived from the melts of enriched lithospheric mantle in a post-collisional setting.

Doğu Pontidler Orojenik Kuşağı’nda (KD Türkiye), farklı boyut ve bileşimlere sahip Eosen yaşlı ortaç-felsik plütonlar yaygın olarak yüzeyleme vermektedir. Bunlardan, Eriko Tepe ve Göl Tepe Plütonları yaklaşık KB-GD ve D-B uzanımlı olup, Üst Kretase ve /veya Eosen volkanik ve sedimanter kayaçlar içerisine yerleşmiştir. Petrografik olarak; incelenen plütonlar, ince-orta taneli monzonit, monzodiyorit ve yer yer kuvars monzonit bileşimlidir. İncelenen Plütonlara ait kayaçlar, plajiyoklas (An35-67), K-feldispat (Or61-96), kuvars, klinopiroksen (Wo28-49En35-51Fs10-25), biyotit (Mg#: 0.53-0.73) ± hornblend (Mg#: 0.65-0.82), Fe-Ti oksit içermekte olup, monzonitik, poikilitik, pertitik, nadiren antirapakivi ve grafik doku gösterirler. Mineral termobarometre hesaplamaları, plütonların orta-sığ kabuk derinliklerindeki P-T koşullarında kristallendiğini ifade etmektedir. Petrokimyasal olarak; incelenen monzonitik plütonlar çarpışma sonrası, I-tipi, metalümin (A/CNK=0.76-0.93) ve şoşonitik karakterlidirler. Tüm-kayaç ana oksit ve iz element değişimleri, monzonitik plütonların gelişiminde fraksiyonel kristallenmenin önemli rol oynadığına işaret etmektedir. İncelenen plütonların ilksel mantoya normalize iz element diyagramları, birbirine benzer büyük iyon yarıçaplı litofil element, Th, Ce zenginleşmesi ve negatif Nb ve Ti anomalileri göstermektedir. Ayrıca, kondrite normalize nadir toprak element dağılımları, orta derecede zenginleşmiş konkav şekilli (LaN/LuN=9.3-12.6) ve negatif Eu anomalisi (EuN/Eu*=0.69-0.84) göstermekte olup, plütonların gelişimlerinde plajiyoklas ve klinopiroksen ± hornblend ayrımlaşmasını yansıtmaktadır. Elde edilen tüm jeokimyasal verilere göre, incelenen monzonitik plütonların çarpışma sonrası ortamda oluştukları ve zenginleşmiş litosferik manto ergiyiklerinden türeyen ana magmalardan itibaren geliştikleri ileri sürülebilir.

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Birincil Dil en
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Dergi Bölümü Makaleler
Yazarlar

Orcid: 0000-0002-6293-8649
Yazar: İrfan TEMİZEL (Sorumlu Yazar)
Kurum: KARADENİZ TEKNİK ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ, JEOLOJİ MÜHENDİSLİĞİ BÖLÜMÜ
Ülke: Turkey


Orcid: orcid.org/0000-0001-5196-8060
Yazar: Emel ABDİOĞLU YAZAR
Kurum: Karadeniz Teknik Üniversitesi, Mühendislik Fakültesi, Jeoloji Müh. Bölümü, Trabzon
Ülke: Turkey


Orcid: orcid.org/0000-0003-0816-4168
Yazar: Mehmet ARSLAN
Kurum: Karadeniz Teknik Üniversitesi, Mühendislik Fakültesi, Jeoloji Müh. Bölümü, Trabzon
Ülke: Turkey


Orcid: orcid.org/0000-0002-6277-6969
Yazar: Abdullah KAYGUSUZ
Kurum: GÜMÜŞHANE ÜNİVERSİTESİ, MÜHENDİSLİK VE DOĞA BİLİMLERİ FAKÜLTESİ, JEOLOJİ MÜHENDİSLİĞİ BÖLÜMÜ
Ülke: Turkey


Orcid: orcid.org/0000-0002-3418-4368
Yazar: Zafer ASLAN
Kurum: Balıkesir Üniversitesi, Mühendislik ve Mimarlık Fakültesi, Jeoloji Mühendisliği Bölümü, Balıkesir, Türkiye
Ülke: Turkey


Bibtex @araştırma makalesi { bulletinofmre371623, journal = {Maden Tetkik ve Arama Dergisi}, issn = {0026-4563}, eissn = {2651-3048}, address = {Maden Tetkik Arama Genel Müdürlüğü}, year = {2018}, volume = {}, pages = {121 - 152}, doi = {10.19111/bulletinofmre.371623}, title = {Mineral chemistry, whole-rock geochemistry and petrology of Eocene I-type shoshonitic plutons in the Gölköy area (Ordu, NE Turkey)}, key = {cite}, author = {TEMİZEL, İrfan and ASLAN, Zafer and ARSLAN, Mehmet and ABDİOĞLU YAZAR, Emel and KAYGUSUZ, Abdullah} }
APA TEMİZEL, İ , ABDİOĞLU YAZAR, E , ARSLAN, M , KAYGUSUZ, A , ASLAN, Z . (2018). Mineral chemistry, whole-rock geochemistry and petrology of Eocene I-type shoshonitic plutons in the Gölköy area (Ordu, NE Turkey). Maden Tetkik ve Arama Dergisi, (157), 121-152. DOI: 10.19111/bulletinofmre.371623
MLA TEMİZEL, İ , ABDİOĞLU YAZAR, E , ARSLAN, M , KAYGUSUZ, A , ASLAN, Z . "Mineral chemistry, whole-rock geochemistry and petrology of Eocene I-type shoshonitic plutons in the Gölköy area (Ordu, NE Turkey)". Maden Tetkik ve Arama Dergisi (2018): 121-152 <http://dergipark.gov.tr/bulletinofmre/issue/33397/371623>
Chicago TEMİZEL, İ , ABDİOĞLU YAZAR, E , ARSLAN, M , KAYGUSUZ, A , ASLAN, Z . "Mineral chemistry, whole-rock geochemistry and petrology of Eocene I-type shoshonitic plutons in the Gölköy area (Ordu, NE Turkey)". Maden Tetkik ve Arama Dergisi (2018): 121-152
RIS TY - JOUR T1 - Mineral chemistry, whole-rock geochemistry and petrology of Eocene I-type shoshonitic plutons in the Gölköy area (Ordu, NE Turkey) AU - İrfan TEMİZEL , Emel ABDİOĞLU YAZAR , Mehmet ARSLAN , Abdullah KAYGUSUZ , Zafer ASLAN Y1 - 2018 PY - 2018 N1 - doi: 10.19111/bulletinofmre.371623 DO - 10.19111/bulletinofmre.371623 T2 - Maden Tetkik ve Arama Dergisi JF - Journal JO - JOR SP - 121 EP - 152 VL - IS - 157 SN - 0026-4563-2651-3048 M3 - doi: 10.19111/bulletinofmre.371623 UR - http://dx.doi.org/10.19111/bulletinofmre.371623 Y2 - 2017 ER -
EndNote %0 Maden Tetkik ve Arama Dergisi Mineral chemistry, whole-rock geochemistry and petrology of Eocene I-type shoshonitic plutons in the Gölköy area (Ordu, NE Turkey) %A İrfan TEMİZEL , Emel ABDİOĞLU YAZAR , Mehmet ARSLAN , Abdullah KAYGUSUZ , Zafer ASLAN %T Mineral chemistry, whole-rock geochemistry and petrology of Eocene I-type shoshonitic plutons in the Gölköy area (Ordu, NE Turkey) %D 2018 %J Maden Tetkik ve Arama Dergisi %P 0026-4563-2651-3048 %V %N 157 %R doi: 10.19111/bulletinofmre.371623 %U 10.19111/bulletinofmre.371623
ISNAD TEMİZEL, İrfan , ABDİOĞLU YAZAR, Emel , ARSLAN, Mehmet , KAYGUSUZ, Abdullah , ASLAN, Zafer . "Gölköy yöresi (Ordu, KD Türkiye) Eosen yaşlı I-tipi şoşonitik plütonların mineral kimyası, tüm-kayaç jeokimyası ve petrolojisi". Maden Tetkik ve Arama Dergisi / 157 (Aralık 2018): 121-152. http://dx.doi.org/10.19111/bulletinofmre.371623