Yıl: 2010 Cilt: 19 Sayı: 1 Sayfa Aralığı: 101 - 122 Metin Dili: Türkçe İndeks Tarihi: 29-07-2022

Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction

Öz:
Ezine-Çanakkale civarında yüzeylenen Miyosen yaşlı Kestanbol granitoyidi, Batı Anadolu’da, Anatolid-Torid Platformu’nun geç Kretase’de çarpışmasıyla oluşan, çarpışma sonrası granitoyidlerden bir tanesidir. Erken Miyosen’de başlayan çarpışma sonrası magmatizma, alkalinden-kalkalkaline değişen özelliklerde olup, bölgesel tektonik kontrollü olarak, plütonizma ve volkanizma birlikte eşyaşlı olarak oluşmaktadır. Kestanbol granitoyidi bölgesel metamorfik temel kayaçlar içerisine sokulum yapmış ve volkanik-volkano-klastik sedimanter kayaçlarla örtülmüştür. Buna ilaveten plütonun batı ve doğu kesimleri büyük faylarla sınırlanır. Pluton eşyaşlı mafik ve felsik magmaların karışım ürünleri olan mafik magmatik enklavlar içerir ve sık sık felsik ve mafik dayklarla kesilir. Kestanbol granitoyidi quvars monzonitik bileşimdedir ancak bu kayaçların enklavları monzonit, monzodiyorit ve kuvars monzodiyorit bileşimdedir. MME-Ana kaya çiftleri, antirapakivi, bıçağımsı biyotit, iğnemsi apatit, süngerimsihücremsi plajiyoklaz ve çivi başlarına benzeyen yamalar içeren plajiyoklaz dokusu gibi bazı özel ‘mixing’ dokuları içermektedirler. Her iki kayaç grubu da mineralojik benzerliklerin yanısıra birbirleriyle bazı etkileşimler ve benzerlikler sergilemektedir. Buna karşın, majör ve iz element davranışları bakımından farklılıklar sunmaktadırlar. Felsik ve mafik damar kayaçlarının mineralojik-petrografik özellikleri felsik ana kayaçlara ve mafik MME’lara benzerler. Mineral kimyası sonuçlarına göre plajiyoklazlar albit-labrador ($An_{8-50}$), amfiboller magnezyo-hornblend ve biyotitler Mg-biyotit bileşimindedirler. Kestanbol granitoyidi amfibol minerallerinin Mg/Mg+$Fe^{+2}$ = 0.55–0.87 değeri, MME’lardaki Mg/Mg+$Fe^{+2}$ = 0.55–0.74 değeri ile benzerdir. Biyotitlerin $FeO^t$/MgO oranı ise, 1.01 ve 1.55 arasındadır. Bu kayaçlar çarpışma sonrası kökenli, subalkalin, metaluminalı, yüksek K-‘lu kalk-alkalin karakterlidir ve eşyaşlı felsik ve mafik magmaların değişik oranda ve değişik magma ortamlarında karışması ile oluşmuşlardır.
Anahtar Kelime:

Konular: Jeoloji

Kestanbol granitoyidi ve mafik mikrogranüler enklavlarının (Ezine Çanakkale) mineral ve tüm –kayaç Jeokimyası: felsik ve mafik magma etkileşiminin kanıtları

Öz:
The Miocene Kestanbol granitoid, in Ezine-Çanakkale, Turkey, is one of post-collision granitoids of western Anatolia, which have been related to the the late Cretaceous collision between the Anatolide-Tauride platform and the Pontides. Magmatism began during the early Miocene, with coeval alkaline to calc-alkaline plutonism and volcanism, controlled by the regional tectonic evolution. The Kestanbol pluton intruded regionally metamorphosed basement rocks. Volcanic and volcano-clastic sedimentary rocks overlie the pluton, which is bounded in the west and east by major faults. The pluton is frequently cut by felsic and mafic dykes and includes mafic microgranular enclaves (MMEs) that are mixing products of coeval felsic and mafic magmas. The Kestanbol granitoid is quartz monzonitic but the MMEs include monzonite, monzodiorite, and quartz monzodiorite. There are some special mixing textures such as antirapakivi, blade-shaped biotite, acicular apatite, spongy-cellular plagioclase and spike-zoned plagioclase in MME-host rock pairs. MME and host rock pairs display mineralogical similarities and they indicate some interactions and parallel evolution with each other. However, they have distinct major and trace element behaviour. The mineralogical and petrographical properties of the felsic and mafic dykes resemble the felsic host rocks and MMEs respectively. The results of the mineral chemistry showed that plagioclases are albite-labradorite ($An_{8-50}$), amphiboles are magnesiohornblende and biotites are Mg-biotites in MME-host rock pairs. The amphibole compositions of the Kestanbol granitoid and its MMEs are somewhat similar (Mg/Mg+$Fe^{+2}$ = 0.55–0.87 and 0.55–0.74). The $FeO^t$/MgO ratio of biotites in these rocks is between 1.01 and 1.55. These rocks are post-collisional, subalkaline, metaluminous and high-K calc-alkaline, I-type in character, and derived from hybrid magma that originated from the mixing of coeval mafic and felsic magmas in different ratios and at different depths.
Anahtar Kelime:

Konular: Jeoloji
Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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APA YILMAZ ŞAHİN S, ÖRGÜN TUTAY Y, GÜNGÖR Y, GÖKER A, GÜLTEKİN A, KARACIK Z (2010). Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction. , 101 - 122.
Chicago YILMAZ ŞAHİN SABAH,ÖRGÜN TUTAY YÜKSEL,GÜNGÖR Yıldırım,GÖKER A. Feti,GÜLTEKİN Ali Haydar,KARACIK ZEKİYE Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction. (2010): 101 - 122.
MLA YILMAZ ŞAHİN SABAH,ÖRGÜN TUTAY YÜKSEL,GÜNGÖR Yıldırım,GÖKER A. Feti,GÜLTEKİN Ali Haydar,KARACIK ZEKİYE Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction. , 2010, ss.101 - 122.
AMA YILMAZ ŞAHİN S,ÖRGÜN TUTAY Y,GÜNGÖR Y,GÖKER A,GÜLTEKİN A,KARACIK Z Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction. . 2010; 101 - 122.
Vancouver YILMAZ ŞAHİN S,ÖRGÜN TUTAY Y,GÜNGÖR Y,GÖKER A,GÜLTEKİN A,KARACIK Z Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction. . 2010; 101 - 122.
IEEE YILMAZ ŞAHİN S,ÖRGÜN TUTAY Y,GÜNGÖR Y,GÖKER A,GÜLTEKİN A,KARACIK Z "Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction." , ss.101 - 122, 2010.
ISNAD YILMAZ ŞAHİN, SABAH vd. "Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction". (2010), 101-122.
APA YILMAZ ŞAHİN S, ÖRGÜN TUTAY Y, GÜNGÖR Y, GÖKER A, GÜLTEKİN A, KARACIK Z (2010). Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction. Turkish Journal of Earth Sciences, 19(1), 101 - 122.
Chicago YILMAZ ŞAHİN SABAH,ÖRGÜN TUTAY YÜKSEL,GÜNGÖR Yıldırım,GÖKER A. Feti,GÜLTEKİN Ali Haydar,KARACIK ZEKİYE Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction. Turkish Journal of Earth Sciences 19, no.1 (2010): 101 - 122.
MLA YILMAZ ŞAHİN SABAH,ÖRGÜN TUTAY YÜKSEL,GÜNGÖR Yıldırım,GÖKER A. Feti,GÜLTEKİN Ali Haydar,KARACIK ZEKİYE Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction. Turkish Journal of Earth Sciences, vol.19, no.1, 2010, ss.101 - 122.
AMA YILMAZ ŞAHİN S,ÖRGÜN TUTAY Y,GÜNGÖR Y,GÖKER A,GÜLTEKİN A,KARACIK Z Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction. Turkish Journal of Earth Sciences. 2010; 19(1): 101 - 122.
Vancouver YILMAZ ŞAHİN S,ÖRGÜN TUTAY Y,GÜNGÖR Y,GÖKER A,GÜLTEKİN A,KARACIK Z Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction. Turkish Journal of Earth Sciences. 2010; 19(1): 101 - 122.
IEEE YILMAZ ŞAHİN S,ÖRGÜN TUTAY Y,GÜNGÖR Y,GÖKER A,GÜLTEKİN A,KARACIK Z "Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction." Turkish Journal of Earth Sciences, 19, ss.101 - 122, 2010.
ISNAD YILMAZ ŞAHİN, SABAH vd. "Mineral and Whole-rock geochemistry of the Kestanbol granitoid (Ezine-Çanakkale) and its mafic microgranular enclaves in northwestern Anatolia: evidence of felsic and mafic magma interaction". Turkish Journal of Earth Sciences 19/1 (2010), 101-122.