Petrological characteristics of Late Cretaceous volcanic rocks of Demirören (Gümüşhane, NE Turkey) region
Keywords:
Eastern pontides, Gümüşhane, late cretaceous, whole-rock geochemistry, petrography, Demirören volcanic rocks
Abstract
Subduction-related Late Cretaceous volcanic rocks are widely observed in the northern zone of the Eastern Pontides, while their distribution in the southern zone is minimal. In this study, the petrographic and geochemical properties of Late Cretaceous volcanic rocks outcropping in Demirören (Gümüşhane) and its surroundings in the southern zone of the Eastern Pontides were investigated. These rocks are composed of basaltic andesite and andesite, and the main minerals are plagioclase, alkali feldspar, hornblende, biotite and minor augite. Volcanic rocks have calc-alkaline character and have medium to high-K content. They are enriched with light rare earth elements (LREE) and large ion lithophile elements (LILE) and depleted in high-field strenght elements (HFSE). The chondrite normalized rare earth element distributions are low to moderately enriched (LaN/LuN=3-12) and are concave in shape. Fractional crystallization played a major role in the development of the rocks. All data indicate that the origin magma of volcanic rocks may be derived from the partial melting of a subcontinental lithospheric mantle (SCLM), whih was enriched by fluids from a subduction of oceanic crust.
References
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[2] Arslan M, Temizel I, Abdioǧlu E, Kolayli H, Yücel C, Boztuǧ D, Şen C. 40Ar-39Ar dating, whole-rock and Sr-Nd-Pb isotope geochemistry of post-collisional Eocene volcanic rocks in the southern part of the Eastern Pontides (NE Turkey): Implications for magma evolution in extension-induced origin. Contributions to Mineralogy and Petrology 2013; 166:113–142.
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[4] Vural A, Kaygusuz A. Petrology of the Paleozoic Plutons in Eastern Pontides: Artabel Pluton (Gümüşhane, NE Turkey). Journal of Engineering Research and Applied Science 2019; 8:1216–1228.
[5] Temizel İ, Arslan M, Yücel C, Yazar EA, Kaygusuz A, Aslan Z. U-Pb geochronology, bulk-rock geochemistry and petrology of Late Cretaceous syenitic plutons in the Gölköy (Ordu) area (NE Turkey): Implications for magma generation in a continental arc extension triggered by slab roll-back. Journal of Asian Earth Sciences 2019; 171:305–320.
[6] Temizel I, Arslan M, Yücel C, Abdioğlu Yazar E, Kaygusuz A, Aslan Z. Eocene tonalite–granodiorite from the Havza (Samsun) area, northern Turkey: adakite-like melts of lithospheric mantle and crust generated in a post-collisional setting. International Geology Review 2020; 62:1131–1158.
[7] Sipahi F, Saydam Eker Ç, Akpınar İ, Gücer MA, Vural A, Kaygusuz A, Aydurmuş T. Eocene magmatism and associated Fe-Cu mineralization in northeastern Turkey: a case study of the Karadağ skarn. International Geology Review 2021:1–26.
[8] Vural A, Akpınar İ, Kaygusuz A, Sipahi F. Petrological characteristics of Eocene volcanic rocks around Demirören (Gümüşhane, NE Turkey). Journal of Engineering Research and Applied Science 2021; 10:1703–1716.
[9] Vural A, Sipahi F. Demirören (Gümüşhane) Fe-skarn yatağının Jeolojik, Jeokimyasal ve kayaç kimyası, köken özellikleri açısından incelenmesi. Gümüşhane, Türkiye: 2016.
[10] Sipahi F, Akpınar İ, Saydam Eker Ç, Kaygusuz A, Vural A, Yılmaz M. 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 2017; 182:32–52.
[11] Vural A. Evaluation of soil geochemistry data of Canca Area (Gümüşhane, Turkey) by means of Inverse Distance Weighting (IDW) and Kriging methods-preliminary findings. Bulletin Of The Mineral Research and Exploration 2018; 158:10–20.
[12] Vural A, Erdoğan M. Eski Gümüşhane Kırkpavli Alterasyon Sahasında Toprak Jeokimyası. Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi 2014; 4:1–15.
[13] Vural A, Ersen F. Geology, mineralogy and geochemistry of manganese mineralization in Gumushane, Turkey. Journal of Engineering Research and Applied Science 2019; 8:1051–1059.
[14] Çamur MZ, Güven İH, Er M. Geochemical characteristics of the eastern Pontide volcanics: an example of multiple volcanic cycles in arc evolution. Turkish Journal of Earth Sciences 1996:123–144.
[15] Arslan M, Tüysüz N, Korkmaz S, Kurt H. Geochemistry and petrogenesis of the eastern Pontide volcanic rocks, Northeast Turkey. Chemie Der Erde Geochemistry 1997; 57:157–187.
[16] Özsayar T, Pelin S, Gedikoğlu A. Doğu Pontidlerde Kretase. KTÜ Yer Bilimleri Dergisi 1981; 1:65–114.
[17] Boztuǧ D, Erçin AI, Kuruçelik MK, Göç D, Kömür I, Iskenderoǧlu A. Geochemical characteristics of the composite Kaçkar batholith generated in a Neo-Tethyan convergence system, Eastern Pontides, Turkey. Journal of Asian Earth Sciences 2006; 27:286–302.
[18] Kaygusuz A, Siebel W, Şen C, Satir M. Petrochemistry and petrology of I-type granitoids in an arc setting: The composite Torul pluton, Eastern Pontides, NE Turkey. International Journal of Earth Sciences 2008; 97:739–764.
[19] Karslı O, Dokuz A, Uysal I, Aydin F, Chen B, Kandemir R, Wijbrans J. Relative contributions of crust and mantle to generation of Campanian high-K calc-alkaline I-type granitoids in a subduction setting, with special reference to the Harşit Pluton, Eastern Turkey. Contributions to Mineralogy and Petrology 2010; 160:467–487.
[20] Eyuboglu Y, Santosh M, Bektas O, Ayhan S. Arc magmatism as a window to plate kinematics and subduction polarity: Example from the eastern Pontides belt, NE Turkey. Geoscience Frontiers 2011; 2:49–56.
[21] Aydınçakır E, Kaygusuz A. Geç Kretase Yaşlı Dağbaşı (Araklı, Trabzon) Volkanitlerinin Petrografik ve Jeokimyasal Özellikleri, KD Türkiye. Gümüşhane Üniversitesi, Fen Bilimleri Enstitüsü Dergisi 2012; 2:123–142.
[22] Özdamar Ş. Geochemistry and geochronology of late Mesozoic volcanic rocks in the northern part of the Eastern Pontide Orogenic Belt (NE Turkey): Implications for the closure of the Neo-Tethys Ocean. Lithos 2016; 248–252:240–256.
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Published
2021-12-31
How to Cite
Vural, A., Kaygusuz, A., & Akpinar, I. (2021). Petrological characteristics of Late Cretaceous volcanic rocks of Demirören (Gümüşhane, NE Turkey) region. Journal of Engineering Research and Applied Science, 10(2), 1828-1842. Retrieved from http://www.journaleras.com/index.php/jeras/article/view/260
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