Geochemical and petrological features of Carboniferous granites from the Güneydere (Bayburt) area

Öz

Middle-Late Carboniferous granitic rocks are widely observed in larger outcrops in the Eastern Pontide orogenic belt of the Eastern Sakarya Zone. This tectonic belt is an important part of the Anatolian plate in terms of containing igneous rocks with a wide age and composition range. This study presents new petrochemical-petrological data on Carboniferous granites in the Güneydere and surrounding area of Bayburt (NE Turkey). The granitic rocks, which include an area of approximately 5 km, represent the pre-Jurassic basement in the study area. Besides, they are unconformably overlain by Early - Middle Jurassic volcano-clastics units and Late Jurassic - Early Cretaceous limestones. They mainly consist of granite, granite porphyry and aplite, to a lesser extent granodiorite and quartz monzonite. Rocks have high SiO2 contents (60.43-75.51%) and high K calc-alkali to shoshonitic affinities and have been derived from an I-type source. The granitic rocks are metalumine-peralumine in character and are similar to post-collisional volcanic arc granitoids. Whole-rocks major and trace element trends show that plagioclase, hornblende, biotite, apatite, and Fe-Ti oxide mineral fractionations play an important role in the formation of the rocks. It has been revealed that fractional crystallization and assimilation±magma mixing processes play a role in the development of granites. Also, the saturation temperatures calculated from the whole-rock zircon values reflect lower initial magma temperatures. All results obtained indicate that parental magma of studied granitic rocks have evolved from lower/middle crust-derived melts as a result of partial melting and differentiated and emplaced in the continental magma chamber.

Anahtar Kelimeler

• Eastern Black Sea
• Güneydere
• Petrochemistry
• Carboniferous granites
• Turkey

Güneydere (Bayburt) civarında yüzeylenen Karbonifer yaşlı granitlerin jeokimyasal ve petrolojik karakteristikleri

Öz

Orta-Geç Karbonifer yaşlı granitik kayaçlar Doğu Sakarya Zonu’nun Doğu Pontid orojenik kuşağında geniş alanlarda dağılım sergilemektedir. Bu tektonik kuşak, geniş yaş ve bileşim aralığında magmatik kayaçları içermesi bakımından da Anadolu levhasının önemli bir parçası konumundadır. Bu çalışma, Bayburt’un (KD Türkiye) Güneydere ve yakın civarında yüzeyleme veren Karbonifer yaşlı granitik kayaçlarda yeni petrokimyasal-petrolojik veriler sunmaktadır. Yaklaşık 5 km bir alanda yüzeyleme veren granitler, çalışma alanında Jura öncesi temel birimleri temsil etmektedir. Bununla birlikte, Erken-Orta Jura yaşlı volkano-klastik ve volkanik birimler ve Geç Jura-Erken Kretase yaşlı kireçtaşları tarafından uyumsuz olarak üzerlenmektedir. Birim başlıca granit, granit porfir ve aplit, daha az oranda ise granodiyorit ve kuvarslı monzonit türü kayaçlardan meydana gelmektedir. Kayaçlar yüksek SiO2 içeriklerine (%60.43-75.51) ve yüksek K’lu kalk-alkaliden şoşonitiğe kadar uzanan bir bileşime sahip olup I-tipi bir kaynaktan itibaren türemiştir. Granitik kayaçlar matalümin-peralümün karakterli olup çarpışma sonrası volkanik yay granitoyidleri ile benzerlik göstermektedir. Tüm-kayaç ana ve iz element trendleri, kayaçların oluşumunda plajiyoklaz, hornblend, biyotit, apatit ve Fe-Ti oksit mineral fraksiyonlaşmasının önemli rol oynadığını göstermektedir. Kayaçların gelişiminde başlıca fraksiyonel kristallenme, az oranda ise asimilasyon ± magma karışımının rol oynadığı ortaya konmuştur. Ayrıca, tüm-kayaç zirkon değerlerinden itibaren hesaplanan doygunluk sıcaklıkları düşük ilksel magma sıcaklıklarını yansıtmaktadır. Elde edilen sonuçlar incelenen granitlerin ana magmasının alt/orta kıtasal kabuk kayaçlarının kısmi ergime sonucu türeyerek ve kıtasal magma odasında farklılaşarak yerleştiğini işaret etmektedir.

Anahtar Kelimeler

• Doğu Karadeniz
• Güneydere
• Petrokimya
• Karbonifer granitleri
• Türkiye

Kaynakça

1. [1] Şengör AMC, Yılmaz Y. “Tethyan evolution of Turkey: a plate tectonic approach”. Tectonophysics, 75, 181-241, 1981.
2. [2] Okay Aİ, Şahintürk Ö. Geology of the Eastern Pontides. Editors: Robinson AG. Regional and Petroleum Geology of the Black Sea and Surrounding Region, 291-311, Boulder, Tulsa: AAPG Bulletin, 1997.
3. [3] Güven İH. “Doğu Karadeniz Bölgesi’nin 1/25.000 Ölçekli Jeolojisi ve Komplikasyonu Raporu”. MTA, Ankara, Türkiye, 58, 1993.
4. [4] Okay Aİ. “Geology of Turkey: A synopsis”. Anschnitt, 21, 19-42, 2008.
5. [5] Göncüoğlu MC. “Türkiye Jeolojisine Giriş: Alpin ve Alpin Öncesi Tektonik Birliklerin Jeodinamik Evrimi”. MTA, Ankara, Türkiye, 5, 2010.
6. [6] Okay Aİ, Tüysüz O. “Tethyan sutures of northern turkey. the mediterranean basin: tertiary extension within the alpine orogen”. Geological Society, London, Special Publications, 156, 475-515, 1999.
7. [7] Arslan M, Tüysüz N, Korkmaz S, Kurt H. “Geochemistry and petrogenesis of the eastern pontide volcanic rocks, Northeast Turkey”. Chemie der Erde-Geochemistry, 57, 157-187, (1997).
8. [8] Kaygusuz A, Şen C. “Calc-alkaline I-Type plutons in the Eastern Pontides, NE Turkey: U-Pb zircon ages, geochemical and Sr-Nd isotopic compositions”. Chemie der Erde Geochemistry, 71, 59-75, 2011.

9. [9] Aydınçakır E, Kaygusuz A. “Geç Kretase Yaşlı Dağbaşı (Araklı, Trabzon) volkanitlerinin petrografik ve jeokimyasal özellikleri, KD Türkiye”. Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2(2), 123-142, 2012.
10. [10] Ceryan Ş, Tüdeş Ş, Ceryan N, Aydın A. “Kürtün Granodiyoriti’ndeki ayrışmış kaya malzemesinin sınıflandırılmasında ve mühendislik özelliklerinin tahmin edilmesinde elastik dalga hızının kullanılması”. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, 13(2), 213-322, 2007.
11. [11] Kaygusuz A, Aydınçakır E. “Mineralogy, whole-rock and Sr–Nd isotope geochemistry of mafic microgranular enclaves in Cretaceous Dağbaşı Granitoids, Eastern Pontides, NE Turkey: Evidence of magma mixing, mingling and chemical equilibration”. Chemie der Erde-Geochemistry, 69, 247-277, 2009.
12. [12] Kaygusuz A, Aydınçakır E. “U-Pb zircon SHRIMP ages, geochemical and Sr-Nd isotopic compositions of Cretaceous plutons in the eastern Pontides (NE Turkey): The Dağbaşı plüton”. Neues Jahrbuch für Mineralogie-Abhandlungen, 188(3), 211-233, 2011.
13. [13] Aydın F. “Geochronology, geochemistry and petrogenesis of the maçka subvolcanic intrusions: implications for the late cretaceous magmatic and geodynamic evolution of the eastern part of the Sakarya Zone, Northeastern Turkey”. International Geology Review, 56(10), 1246-1275, 2014.
14. [14] Yücel C, Arslan M, Temizel İ, Abdioğlu Yazar E. “Volcanic facies and mineral chemistry of Tertiary volcanics in the northern part of the Eastern Pontides northeast Turkey implications for pre eruptive crystallization conditions and magma chamber processes”. Mineralogy and Petrology, 108 (3), 439-467, 2014.
15. [15] Aydınçakır E. “Subduction-related Late Cretaceous high-K volcanism in the Central Pontides orogenic belt: Constraints on geodynamic implications”. Geodinamica Acta, 28(4), 379-411, 2016.
16. [16] Sipahi F, Gücer MA, Sadıklar MB. “Zigana Dağı (Gümüşhane, KD Türkiye) Dayklarının Jeokimyası ve Jeolojik Anlamı”. Yerbilimleri, 40(3), 293-325, 2019.
17. [17] Sipahi F, Kaygusuz A, Saydam Eker Ç, Vural A, Akpınar İ. “Late cretaceous arc igneous activity: The eğrikar monzogranite example”. International Geology Review, 60(3), 382-400, 2018.
18. [18] Karslı O, Dokuz A, Kandemir R. “Zircon Lu-Hf isotope systematics and U–Pb geochronology, whole-rock Sr-Nd isotopes and geochemistry of the early Jurassic Gokcedere pluton, Sakarya Zone-NE Turkey: a magmatic response to roll-back of the Paleo-Tethyan oceanic lithosphere”. Contributions to Mineralogy and Petrology, 172, 1-27, 2017.
19. [19] Karslı O, Aydin F, Uysal I, Dokuz A, Kumral M, Kandemir R, Budakoglu M, Ketenci M. “Latest Cretaceous “A2-type” granites in the Sakarya Zone, NE Turkey: Partial melting of mafic lower crust in response to roll-back of Neo-Tethyan oceanic lithosphere”. Lithos, 302-303, 312-328, 2018.
20. [20] Kaygusuz A, Arslan M, Temizel İ, Yücel C, Aydınçakır E. “U–Pb zircon ages and petrogenesis of the Late Cretaceous I-type granitoids in arc setting, Eastern Pontides, NE Turkey”. Journal of African Earth Sciences, 174, 1-25, 2021.
21. [21] Eyüboğlu Y. “Late Cretaceous high-K volcanism in the eastern Pontide orogenic belt, and its implications for the geodynamic evolution of NE Turkey”. International Geology Review, 52(2/3), 142-186, 2010.
22. [22] Gülmez F, Genc S.C. “Amasya civarı geç kretase yaşlı ultrapotasik volkaniklerinde farklılaşma süreçleri”. Maden Teknik Arama Dergisi, 151, 153–172, 2015.
23. [23] Çoğulu E. Gümüşhane ve Rize Granitik Plütonlarının Mukayeseli Petrolojik ve Jeokronometrik Etüdü. Doçentlik Tezi, İstanbul Üniversitesi, İstanbul, Türkiye, 1975.
24. [24] Topuz G, Altherr R, Wolfgang S, Schwarz WH, Zack T, Hasanözbek A, Mathias B, Satır M, Şen C. “Carboniferous high-potassium I-type granitoid magmatism in the Eastern Pontides: The Gümüşhane pluton (NE Turkey)”. Lithos, 116, 92-110, 2010.
25. [25] Ustaömer T, Robertson HFA. “Late Paleozoic-Early Cenozoic development of the Eastern Pontides (Artvin area), Turkey: stages of closure of Tethys along the southern margin of Eurasia”. Geological Society, London, Special Publications, 340, 281-327, 2010.
26. [26] Dokuz A. “A salb detachment and delemanition model for the generation of Carboniferous high potassium I-type magmatisim in the Easrtern Pontides: The Köse composite Pluton”. Gondwawana Research, 19, 926-944, 2011.
27. [27] Kaygusuz A, Arslan M, Siebel W, Sipahi F, İlbeyli N. “Geochronological evidence and tectonic significance of Carboniferous magmatism in the southwest Trabzon area, eastern Pontides, Turkey”. International Geology Review, 54 (15), 1776-1800, 2012.
28. [28] Kaygusuz A, Arslan M, Sipahi F, Temizel İ. “U–Pb zircon chronology and petrogenesis of Carboniferous plutons in the northern part of the Eastern Pontides, NE Turkey: Constraints for Paleozoic magmatism and geodynamic evolution”. Gondwana Research, 39, 327–346, 2016.
29. [29] Karslı O, Dokuz A, Kandemir R. “Subduction-related Late Carboniferous to Early Permian Magmatism in the Eastern Pontides, the Camlik and Casurluk plutons: Insights from geochemistry, whole-rock Sr-Nd and in situ zircon Lu-Hf isotopes, and U-Pb geochronology”. Lithos, 266, 98-114, 2016.
30. [30] Kaygusuz A. “Geochronological age relationships of Carboniferous Plutons in the Eastern Pontides (NE Turkey)”. Journal of Engineering Research and Applied Science, 9(1), 1299-1307, 2020.
31. [31] Gücer MA, Sarı E. “Karbonifer pamuktaş plütonu’nun petrografisi, jeokimyası ve petrolojik özellikleri, Bayburt (KD Türkiye)”. Yerbilimleri, 42(1), 85-120, 2021.
32. [32] Topuz G, Altherr R, Kalt A, Satır M, Wemer O, Schwarz WH. “Aluminous granulites from the Pulur complex, NE Turkey: a case of partial melting, efficient melt extraction and crystallization”. Lithos, 72, 183-207, 2004.
33. [33] Topuz G, Altherr R, Schwarz WH, Dokuz A, Meyer HP. “Variscan amphibolite-facies rocks from the Kurtoğlu metamorphic complex. Gümüşhane area, Eastern Pontides, Turkey”. International Journal of Earth Sciences, 96, 861-873, 2007.
34. [34] Yılmaz S, Boztuğ D. “Space and time relations of three plutonic phases in the Eastern Pontides, Turkey”. International Geology Review, 38, 935-956, 1996.
35. [35] Bergougnan H. Etudes geologiques dans Test-Anatolien. Doktora Tezi (Yayımlanmamış). Üniversite de Pierre et Marie Curie, Paris, 1987.
36. [36] Ustaömer T, Robertson AHF, Ustaömer PA, Gerdes A, Peytcheva I. “Constraints on Variscan and Cimmerian magmatism and metamorphism in the Pontides (Yusufeli-Artvin area), NE Turkey from U-Pb dating and granite geochemistry”. Geological Society London Special Publications, 49-74, 2013.
37. [37] Kandemir R, Yılmaz C. “Lithostratigraphy, facies and deposition environment of the lower jurassic ammonitico rosso type sediments (ARTS) in the Gumushane Area, NE Turkey: Implications for the opening of the Northern Branch of the Neo-Tethys Ocean”. Journal of Asian Earth Sciences, 34, 586-598, 2009.
38. [38] Dokuz A, Tanyolu E. “Gechemical constraints on the provenance, mineral sorting and subaerial weathering of lower jurassic and upper cretaceous clastic rocks from the Eastern Pontides, Yusufeli (Arvin), NE Turkey”. Turkish Journal of Earth Sciences, 15, 181-209, 2006.
39. [39] Pelin S. Alucra (Giresun) Güneydoğu Yöresinin Petrol Olanakları Bakımından Jeolojik İncelemesi. Yayın No. 87. Trabzon, Türkiye, Karadeniz Teknik Üniversitesi Yayınları, 1977.
40. [40] Yılmaz Y, Tüysüz O, Yiğitbaş E, Genc ŞC, Şengör AMC. Geology and Tectonics of the Pontides. Editors: Robinson AG, Regional and petroleum geology of the Black Sea and Surrounding Region, 183-226, Boulder, Tulsa, USA, AAPG Press, 1997.
41. [41] Kaygusuz A, Sipahi F, İlbeyli N, Arslan M, Chen B, Aydınçakır E. “Petrogenesis of the Late cretaceous Turnagöl intrusion in the eastern pontides: ımplications for magma genesis in the arc setting”. Geoscience Frontiers, 4, 423-438, 2013.
42. [42] Gücer MA. “Origin, petrogenesis and geodynamic implications of the early Eocene Altınpınar adakitic andesites in the eastern Sakarya Zone, northeastern Turkey”. Geochemistry, 81(2), 1-21, 2021.
43. [43] Saydam Eker Ç, Akpınar İ, Sipahi F. “Organic geochemistry and element distribution in coals formed in Eocene lagoon facies from the Eastern Black Sea Region, NE Turkey”. Turkish Journal of Earth Sciences, 25, 467-489, 2016.
44. [44] Keskin İ, Korkmaz S, Gedik İ, Ateş M, Gök L, Küçümen Ö, Erkal T. “Bayburt Dolayının Jeolojisi MTA Raporu”. Ankara, Türkiye, 8995, 1989.
45. [45] Gücer MA, Arslan M, Sherlock SC, Heaman LM. “Permo-Carboniferous granitoids with Jurassic high temperature metamorphism in Central Pontides, Northern Turkey”. Mineralogy and Petrology, 110(6), 943-964, 2016.
46. [46] Gücer MA, Arslan M, Çimen O, Sherlock SC. “Petrology and 40Ar-39Ar dating of paragneisses from the Devrekani Massif (Central Pontides, Northern Turkey): Implications for the Jurassic high-T metamorphism in an extensional tectonic environment”. Journal of Asian Earth Sciences, 181, 1-17, 2019
47. [47] Janoušek V, Farrow CM, Erban V. “Interpretation of whole-rock geochemical data in igneous geochemistry: introducing Geochemical Data Toolkit (GCDkit)”. Jornal of Petrology, 47(6), 1255-1259, 2006.
48. [48] Middlemost EA. “Naming materials in the magma/igneous rock system”. Earth-Science Reviews, 37, 215-224, 1994.
49. [49] Peccerillo A, Taylor SR. “Geochemistry of Eocene calc-alkaline volcanic rocks from the Kastamonu area, Northern Turkey”. Contributions to Mineralogy and Petrology, 58, 63-81, 1976.
50. [50] Irvine TN, Baragar WRA. “A guide to chemical classification of the common volcanic rocks”. Canadian Journal of Earth Sciences, 8, 523-548, 1971.
51. [51] Shand SJ. Eruptive Rocks. Their Genesis, Composition, Classification, and Their Relation to Ore-Deposits with a Chapter on Meteorite. 3rd ed. New York, USA, Wiley, 1943.
52. [52] Sun S, McDonough WF. “Chemical and isotopic systematics of oceanic basalts: implications for mantle composition and processes”. Geological Society, London, Special Publications, 42, 313-345, 1989.
53. [53] Boynton WV. Cosmochemistry of the Rare Earth Elements: Meteorite Studies. Editors: Henderson P. Rare Earth Element Geochemistry, 63-114, Amsterdam, Netherlands, Elsevier Press, 1984.
54. [54] McLennan SM. Rare earth elements in sedimentary rocks: ınfluence of provenance and sedimentary processes. Editors: Lipin BR, MacKay GA. Geochemistry and mineralogy of rare earth elements, 169-200, Chantilly, VA, USA, MSA Press, 1989.
55. [55] Watson EB, Harrison M. “Zircon saturation revisited: temperature and composition effects in a variety of crustal magma types. Earth and Planetary Science Letters, 64, 295-304, 1983.
56. [56] Boehnke P, Watson EB, Trail D, Harrison TM, Schmitt AK. “Zircon saturation re-revisited”. Chemical Geology, 351, 324-334, 2013.
57. [57] Harrison TM, Watson EB. “The behavior of apatite during crustal anatexis: Equilibrium and kinetic considerations”. Geochimica et Cosmochimica Acta, 48, 1467-1477, 1984.
58. [58] Pichavant M, Montel J.-M, Richard LR. “Apatite solubility in peraluminous liquids: experimental data and an extension of the Harrison-Watson model”. Geochimica et Cosmochimica Acta, 56, 3855–3861, 1992.
59. [59] Patiño Douce AE, Johnston AD. “Phase equilibria and melt productivity in the pelitic system: implications for the origin of peraluminous granitoids and aluminous granulites”. Contributions to Mineralogy and Petrology, 107, 202-218, 1991.
60. [60] Daniel C, Aydar E, Gourgaud A. “The Hasan Dagi stratovolcano (Central Anatolia, Turkey): evolution from calc-alkaline to alkaline magmatism in a continental collision zone”. Journal of Volcanology and Geothermal Research, 87, 275-302, 1998.
61. [61] Lai SC, Liu CY, Yi HS. “Geochemistry and petrogenesis of Cenozoic andesite-dacite associations from the Hoh Xil region, Tibetan Plateau”. International Geology Review, 45, 998–1019, 2003.
62. [62] Thirlwall MF, Smith TE, Graham AM, Theodorou N, Hollings P, Davidson JP. “High field strength element anomalies in ARC lavas: source or processes”. Journal of Petrology, 35, 819-838, 1994.
63. [63] Rollinson HR. Using Geochemical Data: Evaluation, Presentation, Interpretation. 1st ed. New York, USA, Wiley, 1993.
64. [64] Mahood G, Hildreth W. “Large Partition Coefficients for Trace Elements in Highsilica Rhyolites”. Geochimica et Cosmochimica Acta, 47, 11-30, 1983.
65. [65] Taylor SR, McLennan SM. The Continental Crust: Its Composition and Evolution. 1st ed. Oxford, UK, Blackwell Scientific Publications, 1985.
66. [66] Pearce JA. The Role of Sub-Continental Lithosphere in Magma Genesis at Destructive Plate Margins. Editors: Hawkesworth CJ, Norry MJ. Continental basalts and mantle xenoliths, 230-249, Cheshire, UK, Shiva Publishing, 1983.
67. [67] Fernandez AN, Barbarin B. Relative Rheology of Coeval Mafic and Felsik Magmas: Nature of Resulting Interaction Prosses And Shape And Mineral Fabric of Mafic Microgranuler Enclaves. Editors: Didier J, Barbarin B. Enclaves and granite petrology, 263-275, Amsterdam, Netherlands, Elsevier, 1991.
68. [68] Didier J, Barbarin B. Enclaves and Granite Petrology, 1st ed. Amsterdam, Netherlands, Elsevier, 1991.
69. [69] Maia de Hollanda MHB, Pimentel MM, Jardim de Sá EF. “Paleoproterozoic subduction-related metasomatic signatures in the lithospheric mantle beneath NE Brazil: inferences from trace element and Sr–Nd–Pb isotopic compositions of Neoproterozoic high-K igneous rocks”. Journal of South American Earth Sciences, 15, 885-900, 2003.
70. [70] Li XH, Li WX, Li ZX, Lo CH, Wang J, Ye MF, Yang YH. “Amalgamation between the Yangtze and Cathaysia Blocks in South China: constraints from SHRIMP U–Pb zircon ages, geochemistry and Nd-Hf isotopes of the Shuangxiwu volcanic rocks”. Precambrian Research, 174, 117-128, 2009.
71. [71] Roberts MP, Clemens JD. “Origin of high-potassium, calcalkaline, ı-type granitoids”. Geology, 21, 825-828, 1993.
72. [72] Ackerman L, Krňanská M, Siebel W, Strnad L. “Geochemistry of the drahotín and mutěnín intrusions, west bohemian shear zone, bohemian massif: contrasting evolution of mantle-derived melts”. Mineralogy and Petrology, 99, 185-199, 2010.
73. [73] Grove TL, Donnelly-Nolan JM. “The evolution of young silicic lavas at medicine lake volcano, california: ımplications for the origin of compositional gaps in calc-alkaline series lavas”. Contributions to Mineralogy and Petrology, 92, 281-302, 1986.
74. [74] Bacon CR, Druitt TH, “Compositional evolution of the zoned calc-alkaline magma chamber of mount mazama, crater lake, oregon”. Contribution to Mineralogy and Petrology, 98, 224-256, 1988.
75. [75] Şen C, Dunn T. “Dehydration melting of a basaltic composition amphibolites at 1.5 and 2.0 GPa: implications for the origin of adakites”. Contribution to Mineralogy and Petrology, 117, 394-409, 1994.
76. [76] Barbarin B. “A reviewof the relationships between granitoid types, their origins and their geodynamic environments”. Lithos, 46, 605-626, 1999.
77. [77] Chen B, Jahn BM, Zhai MG. “Sr-Nd ısotopic characteristics of the mesozoic magmatism in the taihang-yanshan orogen, North China craton, and ımplications for archean lithosphere thinning”. Journal of the Geological Society London, 160, 963-970, 2003.
78. [78] Karslı O, Chen B, Aydın F, Şen C. “Geochemical and Sr-Nd-Pb isotopic compositions of the Eocene Dölek and Sariçiçek Plutons, Eastern Turkey: Implications for magma interaction in the genesis of high-K calc-alkaline granitoids in a post-collision extensional setting”. Lithos, 98, 67-96, 2007.
79. [79] Yang JH, Fu Y, Wu FY, Wilde SA, Xie LW, Yang YH, Liu XM. “Tracing magma mixing in granite genesis: in Situ U-Pb dating and Hf-Isotope analysis of zircons”. Contributions to Mineralogy and Petrology, 153, 177-190, 2007.
80. [80] Eby GN. “Chemical subdivision of the A-type granitoids: petrogenetic and tectonic implications”. Geology, 20, 641-644, 1992.
81. [81] Green TH. “Significance of Nb/Ta as an indicator of geochemical processes in the crust-mantle system”. Chemical Geology, 120, 347-359, 1995.
82. [82] Patiño Douce AE. “What do experiments tell us about the relative contributions of crust and mantle to the origin of granitic magmas”. Geological Society of London Special Publication, 168(1), 55-75, 1999.
83. [83] Pearce JA, Haris NBW, Tindle AG. “Trace element discrimination diagrams for the tectonic interpretation of granitic rocks”. Journal of Petrology, 25, 956-983, 1984.
84. [84] Thiéblemont D, Tégyey M. “Une discrimination géochimique des roches différenciées témoin de la diversité d’origine et de situation tectonique des magmas calcio-alcalins”. Comptes Rendus del’Académie des Sciences, 319, 87-94, 1994.
85. [85] McLennan SM, Taylor SR. Archean Sedimentary Rocks and Their Relation to the Composition of the Archean Continental Crust. Editors: Kröner A, Hanson GN, Goodwin AM. Archean geochemsitry, 42-72, Berlin, Germany, Springer, 1984.
86. [86] Bea F, Fershtater GB, Corretgé LG. “The geochemistry of phosphorus in granite rocks and the effects of aluminium”. Lithos, 48, 43–56, 1992
87. [87] Kurt H, Koçak K, Asan K, Karakaş M. “Niğde, Elmalı Güneyi s-tipi biyotit granitoidleri ve anklavlarının petrolojisi”. Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, 12(2), 249-258, 2006.
88. [88] Lai SC, Liu CY, Yi HS. “Geochemistry and petrogenesis of Cenozoic andesite-dacite associations from the hoh xil region, tibetan plateau”. International Geology Review, 45, 998–1019, 2003.
89. [89] Kaygusuz A, Guloglu ZS. “Petrographical, Geochemical and Petrological Characteristics of the Mafic Microgranular Enclaves in the Arpaköy (Kürtün/Gümüşhane) Granitoid”. Journal of Engineering Research and Applied Science, 11(1), 1982-1997, 2022.
90. [90] Kaygusuz A, Arslan M, Temizel İ, Yücel C, Aydınçakır E. “U–Pb zircon ages and petrogenesis of the late cretaceous I-type granitoids in arc setting, Eastern Pontides, NE Turkey”. Journal of African Earth Sciences, 174, 1-25, 2021.
91. [91] Kaygusuz A, Aydınçakır E, Yücel C, Atay HE. “Petrographic and geochemical characteristics of Carboniferous plutonic rocks around Erenkaya (Gümüşhane, NE Turkey)”. Journal of Engineering Research and Applied Science, 10(2), 1774-1788, 2021.
92. [92] Dokuz A, Gücer MA, Karslı O, Yi K. “From cadomian back-arc basin to rheic ocean closure: The geochronological records of the Kurtoğlu Massif, eastern Sakarya Zone, Turkey”. International Journal of Earth Sciences, 111(4), 1333-1355, 2022.
93. [93] Rudnick RL, Gao S. Composition of the Continental Crust. Editors: Holland HD, Turekian KK. Treatise on Geochemistry, 1-64, Oxford, UK, Elsevier-Pergamon, 2003.