Year 2019, Volume 28, Issue 1, Pages 60 - 84 2019-01-15

Geochronological and geochemical constraints and origin of the Tavşanlı Zone plutonic rocks (NW Turkey)

Metin BAĞCI [1] , Mehmet DEMİRBİLEK [2] , Nurdane İLBEYLİ [3] , Ahmet YILDIZ [4] , Yaşar KİBİCİ [5]

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  In the Tavşanlı Zone, the Eocene magmatism led to NW-SE trending plutons located just south of the İzmir-Ankara-Erzincan Suture Zone in Turkey. The Middle Eocene-aged Günyüzü Intrusive Complex (Karacaören, Tekören, Dinek, Kadıncık) is one of these plutonic rocks and has metaluminous to peraluminous, medium-K calc-alkaline to shoshonitic and mainly I-type granite characteristics. The plutonic rocks consist of mainly granodiorite and granite, and their mafic microgranular enclaves are widespread in these rocks. Mineral assemblages in the host rocks and enclaves also are quite similar (quartz, plagioclase, K-feldspar, biotite, and hornblende), but the latter are more enriched in mafic minerals. The enclaves have disequilibrium textures such as oscillatory zoning and resorbed rims, indicating magma mixing/mingling. In the chondrite-normalized REEs patterns of the plutonic rocks are moderately fractionated and have small negative Eu anomalies. They are enriched in LILEs and LREEs relative to HFSEs, showing characteristics of subductionrelated granitoids. The enclaves also have similar geochemical characteristics, indicating equilibration between the mafic and felsic magmas. Whole-rock geochemical data show that the parental magmas in the Günyüzü area were produced by partial melting from mafic crustal rocks and also magma mixing/mingling from enriched lithospheric mantle. Slab break-off is the likely mechanism for the initiation of the postcollisional magmatism in the Tavşanlı Zone.

Tavşanlı zone, granite, granodiorite, metaluminous, peraluminous, I-type, Rb-Sr geochronology
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Primary Language en
Subjects Engineering
Journal Section Articles

Orcid: 0000-0002-1056-2854
Author: Metin BAĞCI

Orcid: 0000-0003-2749-5560
Author: Mehmet DEMİRBİLEK

Orcid: 0000-0002-0557-8771
Author: Nurdane İLBEYLİ

Orcid: 0000-0002-9077-0628
Author: Ahmet YILDIZ

Orcid: 0000-0002-6331-8521
Author: Yaşar KİBİCİ

Bibtex @research article { tbtkearth513031, journal = {Turkish Journal of Earth Sciences}, issn = {1300-0985}, eissn = {1303-619X}, address = {TUBITAK}, year = {2019}, volume = {28}, pages = {60 - 84}, doi = {}, title = {Geochronological and geochemical constraints and origin of the Tavşanlı Zone plutonic rocks (NW Turkey)}, key = {cite}, author = {BAĞCI, Metin and DEMİRBİLEK, Mehmet and İLBEYLİ, Nurdane and YILDIZ, Ahmet and KİBİCİ, Yaşar} }
APA BAĞCI, M , DEMİRBİLEK, M , İLBEYLİ, N , YILDIZ, A , KİBİCİ, Y . (2019). Geochronological and geochemical constraints and origin of the Tavşanlı Zone plutonic rocks (NW Turkey). Turkish Journal of Earth Sciences, 28 (1), 60-84. Retrieved from
MLA BAĞCI, M , DEMİRBİLEK, M , İLBEYLİ, N , YILDIZ, A , KİBİCİ, Y . "Geochronological and geochemical constraints and origin of the Tavşanlı Zone plutonic rocks (NW Turkey)". Turkish Journal of Earth Sciences 28 (2019): 60-84 <>
Chicago BAĞCI, M , DEMİRBİLEK, M , İLBEYLİ, N , YILDIZ, A , KİBİCİ, Y . "Geochronological and geochemical constraints and origin of the Tavşanlı Zone plutonic rocks (NW Turkey)". Turkish Journal of Earth Sciences 28 (2019): 60-84
RIS TY - JOUR T1 - Geochronological and geochemical constraints and origin of the Tavşanlı Zone plutonic rocks (NW Turkey) AU - Metin BAĞCI , Mehmet DEMİRBİLEK , Nurdane İLBEYLİ , Ahmet YILDIZ , Yaşar KİBİCİ Y1 - 2019 PY - 2019 N1 - DO - T2 - Turkish Journal of Earth Sciences JF - Journal JO - JOR SP - 60 EP - 84 VL - 28 IS - 1 SN - 1300-0985-1303-619X M3 - UR - Y2 - 2018 ER -
EndNote %0 Turkish Journal of Earth Sciences Geochronological and geochemical constraints and origin of the Tavşanlı Zone plutonic rocks (NW Turkey) %A Metin BAĞCI , Mehmet DEMİRBİLEK , Nurdane İLBEYLİ , Ahmet YILDIZ , Yaşar KİBİCİ %T Geochronological and geochemical constraints and origin of the Tavşanlı Zone plutonic rocks (NW Turkey) %D 2019 %J Turkish Journal of Earth Sciences %P 1300-0985-1303-619X %V 28 %N 1 %R %U
ISNAD BAĞCI, Metin , DEMİRBİLEK, Mehmet , İLBEYLİ, Nurdane , YILDIZ, Ahmet , KİBİCİ, Yaşar . "Geochronological and geochemical constraints and origin of the Tavşanlı Zone plutonic rocks (NW Turkey)". Turkish Journal of Earth Sciences 28 / 1 (January 2019): 60-84.