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Comparative petrogenetic investigation of Composite Kaçkar Batholith granitoids in Eastern Pontide magmatic arc—Northern Turkey
Earth, Planets and Space volume 56, pages429–446(2004)
The Pontides are an east-west trending orogenic belt which is subdivided into west, middle and eastern sectors according to their different tectonostratigraphy. The Eastern Pontides are represented by west-east-trending tectonic zones resulted from a common Mesozoic-Tertiary history, comprises dominantly of magmatic rocks. The magmatic belt in the Eastern Pontides includes a large batholith, termed the Composite Kaçkar Batholith (CKB) in which there are various granitic facies. The emplacement of CKB occurred in pulses between the Early Cretaceous and Eocene period during the development of the eastern Pontide magmatic arc and following collisional events. The members of the CKB are Dereli-Şebinkarahisar (Giresun) in the west, southern Araklı (Trabzon) in the middle and Kaçkar Mountain and its surrounding area (Rize) in the east. The plutons ranging from syenite through monzonite to granite are typically medium-high K calc-alkaline rarely tholeiitic and metaluminous I-type. The studied members of the CKB intrudes into the Late Cretaceous arc volcanics and are determined to be Late Cretaceous-Eocene (75.7 ± 1.55; 41.2 ± 0.89) in K-Ar age. The tectono-magmatic setting of the granitoids has been interpreted as an arc-related granitic suite, a post-collisional granitic suite and a post-orogenic granitic suite. Some plutons including mafic magmatic enclaves (MME) and K-feldspar megacrystals suggest magma mixing/mingling. HFS and LIL element geochemistry of the granitic intrusions also suggest that fractional crystallization, magma mixing/mingling and crustal contamination played an important role in the evolution of the CKB. All the data mentioned above show that the granitoids in the three different regions may have been derived from an arc, developed in response to the northward subduction of the northern branch of neo-Tethyan oceanic crust beneath the Eurasian plate in Late Cretaceous and a collision between the Pontide arc and the Anatolide-Tauride platform in Paleocene.
Batchelor, B. and P. Bowden, Petrogenetic interpretation of granitoid rock series using multicationic parameters, Chemical Geology, 48, 43–55, 1985.
Bergantz, G. W., Underplating and partial melting: implications for melt generation and extraction, Science, 245, 1093–1095, 1989.
Bonin, B., A. Azzouni-Sekkal, F. Bussy, and S. Ferrag, Alcali-calcic and alkaline post-orogenic (PO) granite magmatism: petrologic constraints and geodynamic settings, Lithos, 45, 45–70, 1998.
Boztuğ, D., İ. A. Erçin, D. Göç, M. Er, A. İskenderoğlu, M. K. Kuruçelik, and İ. Kömür, Petrogenesis of the composite Kaçkar batholith along a north-south geotraverse between Ardeşen (Rize) and İspir (Erzurum) towns, eastern Black Sea region, Turkey, Fourth International Turkish Geology Symposium (ITGS IV), 24–28 September 2001, Adana/Turkey, Abstracts, p. 210, 2001.
Boztuğ, D., R. Jonckheere, G. A. Wagner, S. Yılmaz Şahin, and Z. Yeğingil, Apatite fission-track ages provide uplift rates and time-temperature paths for the exhumation of Eastern Black Sea plutons in the Dereli-Şabinkarahisar area, S Giresun, NE Turkey, 1st International Symposium of the Faculty of Mines (İTÜ) on Earth Sciences and Engineering, 16–18 May 2002, Istanbul, Turkey, Abstracts, p. 116, 2002a.
Boztuğ, D., G. A. Wagner, A. İ. Erçin, D. Göç, Z. Yeğingil, A. İskenderoğlu, M. K. Kuruçelik, İ. Kömür, and Y. Güngör, Sphene and zircon fission-track geochronology unravelling subduction-and collisionrelated magma surges in the composite Kaçkar Batholith, Eastern Black Sea region, Turkey, 1st International Symposium of the Faculty of Mines (İTÜ) on Earth Sciences and Engineering, 16–18 May 2002, Istanbul, Turkey, Abstracts, p. 121, 2002b.
Brown, G. C., R. S. Thorpe, and P. C. Webb, The geochemical characteristics of granitoids in contrasting arcs and comments on magma sources, J. Geol. Soc. London, 141, 413–426, 1984.
Chappell, B. W., Aluminium saturation in I- and S-type granites and the characterization of fractionated haplogranites, Lithos, 46, 535–551, 1999.
Chen, B., B. Jahn, and C. Wei, Petrogenesis of Mesozoic granitoids in the Dabie UHP complex, Central China: trace element and Nd−Sr isotopic evidence, Lithos, 60, 67–88, 2002.
× oğulu, H. E., Gümüşhane ve Rize bölgelerinde petrolojik ve jeokronolojik araştırmalar, İstanbul Teknik Ü niversitesi Yayını, v. 1034, 112 pp, 1975.
Debon, F. and P. Le Fort, A chemical-mineralogical classification of common plutonic rocks and associations, Transactions of the Royal Society of Edinburg: Earth sciences, 73, 135–149, 1983.
Dewey, J. F., R.M. Shackleton, C. Chang, and Y. Sun, The tectonic evolution of the Tibetian Plateau, Philos. Trans. R. Soc. London, Ser., A327, 379–413, 1988.
Didier, J. and B. Barbarin, The different types of enclaves in granites-Nomenclature, in Enclaves and Granite Petrology, edited by J. Didier and B. Barbarin, Developments in Petrology 13, Elsevier, 19–23, 1991.
Elmas, A., Geology of the Kop Dağı area (Bayburt, Erzurum): evolution of a fore-arc basin (in Turkish), Türkiye Petrol Jeologları Derneği Bülteni, v. 6, p. 19–37, 1995.
Gedikoğlu, A., Harşit granite complex and neighboring rocks (Giresun-Doğankent), Habilatation thesis, Black Sea technical University, Trabzon, Turkey, 161 pp., 1978.
Govindaraju, K., 1989 Compilation of working values and sample description for 272 geostandards, Geostandards Newsletter, 13, 1–113, 1989.
Güngör, Y., Kaçkar granitoyidi orta kesiminin mineralojik-petrografik ve litojeokimyasal incelenmesi, İstanbul Ü niv., Fen Bilimleri Enst., Doktora tezi, 171s, 1997 (unpublished).
Güngör, Y., D. Boztuğ, and O. Yılmaz, Kaçkar Batoliti Altıparmak Dağı-Soğanlı Dağı arası kesiminin petrografik, jeokimyasal ve petrojenik incelenmesi, Yerbilimleri 30, s. 637–663, 1997.
Hibbard, M. J., Textural anatomy of twelve magma-mixed granitoid systems, in Enclaves and Granite Petrology, edited by J. Didier and B. Barbarin, Developments in Petrology 13, Elsevier, pp. 431–444, 1991.
Hibbard, M. J., Petrography to Petrogenesis, 587 pp., Prentice Hall, 1995.
Irvine, T. N. and W. R. A. Baragar, A guide to the chemical classification of common volcanic rocks, Canadian Journal of Earth Sciences, 8, 523–548, 1971.
Kazmin, V. G., A. A. Schreider, and A. A. Bulychev, Early stages of evolution of the Black Sea, Geological Soc. London, Special Publ., 173, 235–249, 2000.
Maniar, P. D. and P. M. Piccoli, Tectonic discrimination of granitoids, Geol. Soc. of America Bull., 101, 635–643, 1989.
Mason, B. and C. B. Moore, Principles of Geochemistry, 344 pp., John Wiley and Sons, Hong Kong, 1982.
Moore, W. J., E. McKee, and Ö. Akıncı, Chemistry and geochronology of plutonic rocks in he Pontide mountains, Northern Turkey, in European Copper Deposits, Belgrade, pp. 209–216, 1980.
Okay, A. I. and Ö. Şahintürk, Geology of the Eastern Pontides, in Regional and Petroleum Geology of the Black Sea and Surrounding Region, edited by A. G. Robinson, AAPG Memoir, 68, pp. 291–311, 1997.
Peccerillo, A. and S. R. Taylor, Geochemistry of Eocene calc-alkaline rocks from the Kastamonu area, northern Turkey, Contrib. Mineral. Petrol., 58, 63–81, 1976.
Pelin, S., Geological study of the area southeast of Alucra (Giresun), with special reference to its petroleum potential, Karadeniz Teknik Ü niversitesi, Yerbilimleri Dergisi, Jeoloji, v. 1, pp. 15–20, 1977 (in Turkish).
Şengör, A. M. C. and Y. Yılmaz, Tethyan evolution of Turkey: A plate tectonic approach, Tectonophysics, 75, 181–241, 1981.
Shand, S. J., Eruptive Rocks, p. 488, Thomas Murby and Co., London, 1947.
Taner, M. F., Etude geologique et petrographique de la region de Güneyce, İkizdere, située au sud de Rize (Pontides orientales, Turquie), Ph.D these no. 1788, Geneve, 180 pp., 1977.
Tokel, S., 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, 1995.
Topuz, G., R. Altherr, A. Kalt, M. Satır, O. Werner, and W. H. Scwarz, Aluminous granulites from the Pulur complex, NE Turkey: a case of partial melting, efficient melt extraction and crystallization, Lithos, 2004 (in press).
Ustaömer, T. and A. Robetson, 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, pp. 255–290, 1997.
Wilson, M., Igneous Petrogenesis, 456 pp., Unwin Hyman, London, 1989.
Yılmaz, A., S. Adamia, A. Chabukiani, T. Chkhotua, K. Erdoğan, S. Tuzcu, and M. Karabıyıkoğlu, Structural correlation of the southern Transcaucasus (Georgia)—eastern Pontides (Turkey), in Tectonics and Magmatism in Turkey and Surrounding Area, edited by E. Bozkurt, J. A. Winchester, and J. D. A. Piper, Geological Society of London Special Publications, 173, 171–182, 2000.
Yılmaz, S., Dereli-Şebinkarahisar (Giresun güneyi) arası granitoyid plütonlarının karşılaştırmalı incelenmesi, Doktora Tezi, Cumhuriyet Ü niv., Fen Bilimleri Enstitüsü, 310 s, 2 Ek, Sivas, 1995 (unpublished).
Yılmaz, S. and D. Boztuğ, Space and time relations of three plutonic phases in the Eastern Pontides, Turkey, Int. Geology Review, 38, 935–956, 1996.
Yılmaz Şahin, S., Petrogenesis of Some Shallow-Seated Granitoids from the Eastern Black Sea Plutonism in the South of Araklı Region, East Trabzon, Northern Turkey, 1st International Symposium of the Faculty of Mines (İTÜ) on Earth Sciences and Engineering, 16–18 May 2002, Istanbul, Turkey, Abstracts, p. 117, 2002.
Yılmaz Şahin, S., Transition from arc- to post-collision extensional setting revealed by K−Ar dating and Petrology: An Example from the granitoids of the Eastern Pontide Igneous Terrain, Araklı-Trabzon, NE Turkey, Geological Journal, 2004 (submitted).
Yılmaz, Y., O. Tüysüz, E. Yiğitbaş, Ş. C. Genç, and A. M. C. Şengör, Geology of tectonic evolution of the Pontides, in Regional and Petroleum Geology of the Black Sea and Surrounding Region, edited by A. G. Robinson, AAPG Memoir, 68, 183–226, 1997.
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Şahin, S.Y., Güngör, Y. & Boztuğ, D. Comparative petrogenetic investigation of Composite Kaçkar Batholith granitoids in Eastern Pontide magmatic arc—Northern Turkey. Earth Planet Sp 56, 429–446 (2004). https://doi.org/10.1186/BF03352496
- arc magmatism
- Eastern Pontides