Çamlıkaya (İspir/Erzurum) Köyü Çevresinde Yüzeyleyen Kaçkar Batoliti’ne ait Granitoidlerin Petrografik ve Jeokimyasal Özellikleri

Yıl 2022, , 224 - 238, 30.06.2022

Abdullah Sar , Sevcan Kürüm , Hao-yang Lee

https://doi.org/10.29132/ijpas.991777

Cited By: 2

Öz

Pontid Orojenik Kuşağı, Bulgaristan’dan başlayıp, Türkiye-Istranca Bölgesi'nden Küçük Kafkasya'ya kadar uzanan Doğu-Batı uzanımlı dağ kuşağını temsil etmektedir. İnceleme alanı Pontidler’in doğu kesiminde (Kaçkar Batoliti) Çamlıkaya köyü (İspir/Erzurum) ve çevresini kapsamaktadır. İnceleme alanında yüzeyleyen plütonik kayaçlar genel olarak granit ve granodiyoritler ile temsil edilmektedir. İncelenen kayaçlar, bileşimsel olarak kalkalkalen’den şoşonitiğe değişen karakterde ve I-tipi granit özelliğindedir. İlksel mantoya göre normalize edilmiş iz element diyagramlarında, Rb, K, Th, Ba gibi büyük iyon yarıçaplı elementlerde zenginleşme olduğu, Nb, Ti, P ve Ta gibi yüksek alan enerjili elementlerde ise fakirleşme olduğu görülmektedir. Granitik kayaçlarda gözlenen negatif Nb anomalisi yitimle ilişkili magmaların karakteristik özelliğidir. Kondrite göre normalize edilmiş iz element diyagramlarında, hafif nadir toprak elementleri, ağır nadir toprak elementlerine göre daha fazla zenginleşme göstermektedir. Negatif Eu anomalileri görülmektedir. Yüksek Rb/Sr, Nb/Ta, Zr/Hf, Th/U, Th/Ta ve düşük Nb/La gibi iz element oranları bu kayaçların oluşumunda kabuksal kirlenmenin etkin rol oynadığını göstermektedir. İnceleme konusunu oluşturan kayaçlar tektonik ayırtlama diyagramlarında volkanik yay ve çarpışma sonrası bölge alanlarına düşmektedir.

Anahtar Kelimeler

Tüm kayaç jeokimyası, : Çamlıkaya- İspir/Erzurum, Doğu Pontidler, Kaçkar Batoliti

Destekleyen Kurum

Tubitak

Proje Numarası

1059B141800146

Teşekkür

Bu çalışma TÜBİTAK 2214A Doktora Sırası Yurtdışı Araştırma Burs Programı tarafından desteklenmiştir. (Protokol numarası 1059B141800146 )

Petrographic and Geochemical Characteristics of Granitoids of the Kaçkar Batholith Outcropping Around Çamlıkaya (İspir/Erzurum) Region

Öz

Pontid Orogenic Belt, starting from Bulgaria, Turkey-Istranca region extending from the Caucasus represents the East-West trending mountain belt. The study area covers Çamlıkaya village (İspir/Erzurum) and its surroundings in the eastern part of the Pontides (Kaçkar Batholith). Plutonic rocks cropping out in the study area are generally represented by granites and granodiorites. The rocks studied are compositionally varying from calc-alkaline to shoshonitic and have the characteristics of I-type granite. In trace element diagrams normalized to the primary mantle, it is seen that there is enrichment in elements with large ion lithophile elements such as Rb, K, Th, Ba, and depletion in elements with high field strength elements such as Nb, Ti, P and Ta. Negative Nb anomaly observed in granitic rocks is characteristic of subduction-related magmas. In trace element diagrams normalized to chondrite, light rare earth elements show more enrichment than heavy rare earth elements. Negative Eu anomalies are seen. High trace element ratios such as Rb/Sr, Nb/Ta, Zr/Hf, Th/U, Th/Ta and low Nb/La indicate that crustal contamination plays an active role in the formation of these rocks. The studied rocks fall into the volcanic arc and post-collisional zone areas in the tectonic distinction diagrams.

Anahtar Kelimeler

Whole rock geochemistry, Çamlıkaya- İspir/Erzurum, Eastern Pontides, Kaçkar Batholite

Proje Numarası

1059B141800146

Kaynakça

• Borg, L.E. Nyquist, L.E. Wiesmann, H. ve Shih, C.Y. (1997). Constraints on Martian differenti-ation processes from Rb–Sr and Sm–Nd isotopic analyses of the basaltic shergottite QUE94201. Geochimica et Cosmochimica Acta, 61, 4915–4931.
• Boztuğ, D. Wagner, G.A. Erçin, A.İ. Göç, D. Yeğingil, Z. İskenderoğlu, A. Kuruçelik, M.K. Kömür, İ. ve Güngör, Y. (2002). Sphene and zirconfission-track geochronology unravelling subduction- and collisionrelatedmagma surges in the composite Kaçkar Batholith, eastern Black Sea region, Turkey. 1st International Symposium of the Faculty of Mines on Earth Sciences and Engineering, 16–18 May 2002, Istanbul, Turkey, Abstracts, p.121.
• Boztuğ, D. Erçin, A.İ. Kuruçelik, M.K. Göç, D. Kömür, İ. ve İskenderoğlu, A. (2006). Geochemical characteristics of the composite Kaçkar batholith generated in a Neo-Tethyan convergence system, Eastern Pontides, Turkey. Journal of Asian Earth Science, 27, 286–302.
• Boztuğ, D. Jonckheere, R. Wagner, G.A. Erçin, A.I. ve Yeğingil, Z. (2007). Titanite and zircon fission-track dating resolves igneous episodes in the formation of the composite Kaçkar batholith in the Turkish eastern Pontides. International Journal of Earth Science, 96, 875–886.
• Castro, A. Moreno-Ventas, I. ve Dela Rosa, J.D. (1991). H-type (hybrid) granitoids: a proposed revision of the granite-type classification and nomenculature. Earth Science Reviews, 31, 237–253.
• Cavazza W. ve Wezel F.C. (2003). The Mediterranean region—a geological primer. Episodes, 26, 160-168.
• Chappell, B.W. ve White, A.J.R. (1992). I- and S-type granites in the Lachlan Fold Belt. Transition of the Royal Society Edinburgh Earth Science, 83, 1–26.
• Çoğulu, E. (1975) Gümüşhane ve Rize bölgelerinde petrolojik ve jeokronometrik araştırmalar: İstanbul Teknik Üniversitesi yayını, 1034, İstanbul.
• Delaloye, M. Çoğulu, E. ve Chessex, R. (1972). Etude géochronometrique des massifs cristallins de Rize et de Gümüşhane, Pontides Orientales (Turquie). Archives des Sciences Physiques et Naturelles, 25, 43–52.
• Delibaş, O. Moritz, R. Ulianov, A. Chiaradia, M. Saraç, C. Revan, K.M. ve Göç, D. (2016). Cretaceous subduction-related magmatism and associated porphyry-type Cu–Mo prospects in the Eastern Pontides, Turkey: New constraints from geochronology and geochemistry. Lithos, 248-251, 119–137.
• Dokuz, A. (2011). A slab detachment and delamination model for the generation of Carboniferous high- potassium I-type magmatism in the Eastern Pontides, NE Turkey: The Köse composite pluton. Gondwana Research, 19, 926-944.
• Dokuz, A. Karslı, O. Chen, B. ve Uysal, İ. (2010). Sources and petrogenesis of Jurassic granitoids in the Yusufeli area, Northeastern Turkey: Implications for pre- and post-collisional lithospheric thinning of the eastern Pontides. Tectonophysics, 480, 259-279.
• Eby, G.N. (1992). Chemical subdivision of the A-type granitoids: petrogenetic and tectonic implications. Geology, 20, 641–644.
• Elmas, A. (1995). Geology of the Kop Dağı area (Bayburt–Erzurum): evolution of a fore-arc basin (in Turkish). TPJD Bülteni, 6, 19–37.
• Eyüboğlu, Y. Santosh, M. ve Chung, S.L. (2011). Crystal fractionation of adakitic magmas in the crust–mantle transition zone: Petrology, geochemistry and U–Pb zircon chronology of the Seme adakites, Eastern Pontides, NE Turkey. Lithos, 121, 151–166.
• Eyüboğlu, Y. Dudas, F.O. Zhu, D.C. Liu, Z. ve Chatterje, N. (2019). Late Cretaceous I- and A-type magmas in eastern Turkey: Magmatic response to double-sided subduction of Paleo- and Neo-Tethyan lithospheres. Lithos, 326–327, 39–70.
• Green, T.H. (1995). Significance of Nb/Ta as an indicator of geochemical processes in the crust–mantle system. Chemical Geology, 120, 347–359.
• Grove, T.L. ve Donnelly-Nolan. J.M. (1986). The Evolution ol' Young Silisic Lavas at Medicine Lake Volcano, California: Implietvtioos for the Origin of Compositional Gaps inCalc-Alkaline Scries Lavas. Contribıtions to Mineralogy and Petrology, 92, 281-302.
• Hildreth, W. ve Moorbath, S. (1988). Crustal contributions to arc magmatism in the Andes of Central Central Chile. Contributions to Mineralogy and Petrology, 98, 455–489.
• Jung, S. Masberg, P. Mihm, D. ve Hoernes, S. (2009). Partial melting ofdiverse crustal sources — constraints from Sr–Nd–O isotope compositions of quartz diorite–granodiorite– leucogranite associations (Kaoko Belt, Namibia). Lithos, 111, 236–251.
• Karslı, O. İlhan, M. Kandemir, R. Dokuz, A. Aydın, F. Uysal, İ. ve Duygu, L. (2020). Nature of the Early Cretaceous lamprophyre and high-Nb basaltic dykes, NE Turkey: Constraints on their linkage to subduction initiation of Neotethyan oceanic lithosphere. Lithos, 380–381, 105884.
• Kaygusuz, A. Arslan, M. Siebel, W. Sipahi, F. İlbeyli, N. ve Temizel, İ. (2014). LA-ICP-MS zir- con dating, whole-rock and Sr–Nd–Pb–O isotope geochemistry of the Camiboğazı pluton, Eastern Pontides, NE Turkey: implications for lithospheric mantle and lower crustal sources in arc-related, I-type magmatism. Lithos, 192–195, 271–290.
• Ketin, İ. (1966). Anadolu’nun Tektonik Birlikleri. MTA Dergisi, 66,20-34.
• Le Bas, M.J. Le Maitre, R.W. Streckesian, A. ve Zanettin, B. (1986). A chemical classification of volcanic rocks based on the total alkali – slica diagram. Jornal of Petrology, 27, 745-750.
• Lin, I.-J. Chung, S-L. Chu, C-H. Lee, H-Y. Gallet, S. Wu, G. Ji, J. ve Zhang, Y. (2012). Geochemical and Sr\Nd isotopic characteristics of Cretaceous to Paleocene granitoids and volcanic rocks, SE Tibet: petrogenesis and tectonic implications, J. Asian Earth Sci., 53, 131-150.
• McCulloch, M.T. ve Gamble, J.A. (1991). Geochemical and geodynamical constraints on subduction zone magmatism. Earth and Planetary Science Letters, 102, 358–374.
• Okay, A. (2008). Geology of Turkey: A Synopsis. Anschnitt, 21, 19-42.
• Okay, A.I. ve Şahintürk, Ö. (1997). Geology of the Eastern Pontides. In: Robinson, A.G., Regional and Petroleum Geology of the Black Sea and Surrounding Region, AAPG Memoir, 68, 291-310.
• Okay, A.I. (1996). Granulite facies gneisses from the Pulur region, Eastern Pontides. Turkish Journal of Earth Sciences, 5, 55-61.
• Özsayar, T. Pelin, S. ve Gedikoğlu, A. (1981). Artvin Yöresi Yastık Lavlarının Yaşına İlişkin Paleontolojik Veriler: KTÜ Yerbilimleri Dergisi, Trabzon, 2, 1-2.
• Pearce, J.A. (1996). Sources and settings of granitic rocks. Episodes, 19 (4), 120-125.
• Pearce. J.A. Harris, N.B.W. ve Tindle, A.G. (1984). Trace element discrimination diagrams for the tectonic interpretation of granitic rocks. Journal Petrol, 25, 956-983.
• Peccerillo, A. ve Taylor, S.R. (1976). Geochemistry of Eoscene calc-alcalin volcanic rocks in the Kastamonu area, Northern Turkey. Contrib Miner Petrol, 58, 63-81.
• Roberts, M.P. ve Clemens, J.D. (1993). Origin of high-potassium, calc-alkaline, I-type granitoids. Geology, 21, 825–828.
• Robertson, A. H. F. Parlak, O. Ustaömer, T. Taslı, K. İnan, N. Dumitrica, P. ve Karaoğlan, F. (2013). Subduction, ophiolite genesis and collision history of Tethys adjacent to the Eurasian continental margin: new evidence from the Eastern Pontides, Turkey. Geodinamica Acta, 26 (3-4), 230-293.
• Sar, (2020). Erzurum, Artvin ve Rize Bölgesindeki (Doğu Pontidler-Türkiye) Asit Plütonik Kayaçların Petrolojisi. Doktora Tezi, Fırat Üniversitesi, Fen Bilimleri Enstitüsü, Elazığ, s. 228.
• Shellnutt, J.G. Zhou, M.-F. ve Zellmer, G.F. (2009). The role of Fe–Ti oxide crystallization in the formation of A-type granitoids with implications for the Daly gap: An example from the Permian Baima igneous complex, SW China. Chemical Geology, 259, 204–217.
• Shi, W.X. Liao, Q.A. Hu, Y.Q. ve Yang, Z.F. (2010). Characteristics of Mesoproterozoic granites and their geological significances from middle tianshan block, east tianshan district, NW China. Geol. Sci. Technol. Inf. 29, 29e37 (in Chinese with English abstract).
• Sipahi, F. Akpınar, İ. Saydam Eker, Ç. Kaygusuz, A. Vural, A. ve Yılmaz, M. (2017). Formation of the Eğrikar (Gümüşhane) Fe–Cu skarn type mineralization in NE Turkey: U–Pb zircon age, lithogeochemistry, mineral chemistry, fluid inclusion, and O-H-C-S isotopic compositions. Journal of Geochemical Exploration, 182, 32–52.
• Sipahi, F. Kaygusuz, A. Saydam, Ç. Vural, E.A. ve Akpınar, İ. (2018). Late Cretaceous arc igneous activity: the Eğrikar Monzogranite example. International Geology Review, 60, 382–400.
• Smith, E.I. Sánchez, A. Walker, J.D. ve Wang, K. (1999). Geochemistry of mafic magma in the Hurricane Volcanic field, Utah: implications for small- and large- scale chemical variability of the lithospheric mantle. Journal of Geology, 107, 433– 448.
• Streckeisen, A.L. ve Le Maitre. R.W. (1979). Chemical approximation to modal QAPF classification of the igneus rocks. Neus Jahrbuch für Mineralogie, 136, 169-206.
• Sun, S. ve Mc Donough, W.F. (1989). Chemical and isotopic systematic of oceanic basalts. İmplications for mantle compositional processes. In: Saunders, A.D., Norry, M.J. (eds.), Magmatism in the ocean basins, Special Publication 42. Geological Society of London, 312.
• Şengör, A.M.C. ve Yilmaz, Y. (1981). Tethyan evolution of Turkey: a plate tectonic approach. Tectonophysics, 75, 181–241
• Tokel, S. (1995) Magmatic and geochemical evolution of the Pontide segment of the northern Tethys subduction system, Geology of the Black Sea region, Proceedings of the International Symposium on the Geology of the Black Sea Region, September 7–11, 1992, Ankara, edited by A. Erler, T. Ercan, E. Bingöl, and S. Örçen, published by the General Directorate of Mineral Research and Exploration and Chamber of Geological Engineers, Ankara, Turkey, 163–170
• Topuz, G. Altherr, R. Schwarz, W.H. Dokuz, A. ve Meyer, H.P. (2007). Variscan amphibolite-facies rocks from the Kurtoğlu metamorphic complex. Gümüşhane area, Eastern Pontides, Turkey. International Journal of Earth Sciences, 96, 861-873.
• Topuz, G. Altherr, R. Siebel, W. Schwarz, W.H. Zack, T. Hasözbek, A. Barth, M. Satır, M. ve Şen, C. (2010). Carboniferous high-potassium I-type granitoid magmatism in the Eastern Pontides: The Gümüşhane pluton (NE Turkey). Lithos, 116, 92–110.
• Ustaömer, T. ve A. Robetson. (1997). Tectonic-Sedimentary Evolution of the North Tethyan Margin in the Central Pontides of Northern Turkey, in Regional and Petroleum Geology of the Black Sea and Surrounding Region, edited by A. G. Rabinson, AAPG Memoir, 68, 255–290.
• Van de Flierdt, T. Hoernes, S. Jung, S. Masberg, P. Hoffer, E. Schaltegger, U. ve Friedrichsen, H. (2003). Lower crustal melting and the role of open-system processes in the genesis of syn-orogenic quartz diorite–granite–leucogranite associations: constraints from Sr–Nd–O isotopes from the Bandombaai Complex, Namibia. Lithos, 67, 205–226. Whalen, J.B. Currie, K.L. ve Chappell, B.W. (1987). A-type granites: geochemical characteristics, discrimination and petrogenesis. Contributions to Mineralogy and Petrology, 95, 407-419.
• Yılmaz, S. ve Boztuğ, D. (1996). Space and Time Relations of Three Plutonic Phases in the Eastern Pontides, Turkey. International Geology Review, 38,935–956.
• Yilmaz, Y. Tüysüz, O. Yiğitbaş, E. Genç, Ş.C. Şengör, A.M.C. (1997). Geology and Tectonic Evolution of the Pontides. In: Robinson, A.G., (Ed.), Regional and Petroleum Geology of the Black Sea and Surrounding Region. American Association of Petroleum Geologists Memoir, 68, 183–226.