Geological Features and Lithostratigraphy of Eocene-Oligocene Magmatic Rocks in the Dededağ Area-Biga Peninsula, NW Turkey

Year 2021, Volume: 8 Issue: 4, 435 - 449, 15.12.2021

Oya Erenoğlu Mustafa Bozcu

https://doi.org/10.30897/ijegeo.887149

Cited By: 1

Abstract

In NW Anatolia, Eocene-Oligocene post-collisional magmatism is continued with long intervals. In this study, it is aimed to reveal the lithostratigraphic position and geochemical characteristics of volcanic rocks outcropping in the southeast of Lapseki (Çanakkale) in NW Anatolia. The magmatic rocks that compose the topic of this study can be classified lithostratigraphically into 6 different units in the region. In Eocene period, there are calc-alkaline Laledağgranodiorite and Beyçayır volcanics with andesite, dacite composition that are the intermediate character, and also Kızıldamvolcanics in characters of alkaline and basic character (basaltic trachyandesite, trachybasalt). Furthermore, in Oligocene period, the calc-alkaline volcanism starting with Dededağvolcanics with dacite and rhyolite composition in acidic-intermediate character has continued with Kırcalarvolcanics consisting of basalt and basaltic andesite, and Harmancık volcanics ranging from basalt to rhyolite. Çamyayla Pluton is intruded to Oligocene volcanics in the region. In this study, the geochemical data proved that magmatic units arein character of alkaline and calc-alkalinefor Eocene-Oligocene period. Alkaline lavas in the region are classified as high K and shoshonitic and calc-alkaline lavas have medium-high-K.

Keywords

Lithostratigraphy, Eocene-Oligocene Magmatism, Geochemistry, Biga Peninsula, NW Anatolia

Supporting Institution

Çanakkale Onsekiz Mart University

Project Number

Scientific Research Projects (BAP- Project no: 2012/012)

References

• Aldanmaz, E., Pearce, J.A., Thirlwall, M.F., Mitchell, J.G. (2000). Petrogenetic evolution of late cenozoic, post collision volcanism in western Anatolia, Turkey. Journal of Volcanology and Geothermal Research, 102, 67-95.
• Altunkaynak, Ş., Genç, Ş.C. (2008). Petrogenesis and time-progressive evolution of the cenozoic continental volcanism in the Biga Peninsula, NW Anatolia. Lithos, 102(1), 316-340.
• Altunkaynak, Ş., Dilek, Y. (2013). Eocene mafic volcanism in Northern Anatolia: its causes and mantle sources in the absence of active subduction. International Geology Review, 13(55), 1641-1659.
• Aysal N., Öngen S., Keskin M. (2011). Cenozoic Volcano-Stratigraphy and Petrological Evolution of Post-Collisional Volcanic Rocks in Eastern Biga Peninsula, NW, Anatolia, Turkey. International Multidisciplinary Scientific GeoConference SGEM 2011, Bulgaristan, pp. 19-26.
• Bingöl E., Akyürek B., Korkmazer B. (1975). Biga Yarımadasının Jeolojisi ve Karakaya Formasyonunun Bazı Özellikleri. Cumhuriyetin 50. Yılı Yerbilimleri Kongresi Tebliğleri, pp. 70-77.
• Bingöl, E., Delaloye, M., Ataman, G. (1982). Granitic intrusion in Western Anatolia: a contribution to the geodynamic study of this area. Eclogae Geologicae Helvetiae, 75(2), 437-446.
• Birkle, P., Satır, M. (1995). Dating, geochemistry and geodynamic significance of the tertiary magmatism of the Biga Peninsula, NW-Turkey. Geology of the Black Sea Region. In: Erler, A., Ercan, T., Bingöl, E., Örçen, S. (Eds.) Geology of the Black Sea Region (pp. 171-180), MTA, Ankara.
• Borsi, S., Ferrar, C., Innocenti, F., Mazzudi, R. (1972). Geochronology and petrology of recent volcanics of eastern Aegean Sea. Bulletin of Volcanology, 36, 473-496.
• Bozkaya, G., Gökçe, A. (2009). Lead and sulfur isotope studies of the Koru (Çanakkale, Turkey) lead-zinc deposits. Turkish Journal of Earth Sciences, 18, 127-137.
• Cas, R.A.F., Wright J.V. (1987). Volcanic Successions. Modern and Ancient, London, Boston, Sydney, Wellington: Allen & Unwin. 528 p.
• Dayal, A. (1984). Yenice (Çanakkale) granitinin petrografisi ve buna bağlı cevherleşmeler (Doktora tezi). Dokuz Eylül Üniversitesi, İzmir, Türkiye.
• Dayal, A., Özgenç, İ. (2000). Yenice yöresinde skarn oluşturan plutonik ve volkanik kayaçlarin radyometrik yaşı (Çanakkale - Biga Yarımadası). 53. Türkiye Jeoloji Kurultayı, Bildiri Özleri Kitabı (pp. 296-297), Ankara, Türkiye.
• Delaloye, M., Bingöl, E. (2000). Granitoids from Western and Nortwestern Anatolia: geochemistry and modeling of geodynamic evolution. International Geology Review, 42, 241-268.
• Dönmez, M., Akçay, A.E., Genç, Ş.C., Acar, Ş., (2005). Biga Yarımadasında orta-üst eosen volkanizmasi ve denizel ignimbiritler. MTA Dergisi, 131, 49-61.
• Ercan, T., Satır, M., Steinitz, G., Dora, A., Sarıfakıoğlu, E., Adis, C., Walter, H.J., Yıldırım, T. (1995). Biga Yarımadası ile Gökçeada, Bozcaada ve Tavşan Adalarındaki KB Anadolu tersiyer volkanizmasinin özellikleri. MTA Dergisi, 117, 55–86.
• Genç, S.C. (1998). Evolution of the Bayramiç magmatic complex, Northwestern Anatolia. Journal of Volcanology and Geothermal Research, 85, 233–249.
• Gülmez, F., Genç, S.C., Keskin, M., Tüysüz, O. (2012). A post-collision slab-breakoff model for the orgin of the middle Eocene magmatic rocks of the Armutlu -Almacık Belt, NW Turkey and its regional implications. In: Robertson, A.H.F., Parlak, O., Ünlügenç U.C. (Eds.), Geological Development of Anatolia and the Easternmost Mediterranean Region. Geological Society of London, Special Publications. 372 p.
• Irvine, T.N., Baragar, W.A.R. (1971). Aguide to chemical classification of common volcanic rocks. Canadian Journal of Earth Sciences, 8, 523-547.
• Karacık, Z. (1995). Ezine-Ayvacık (Çanakkale) dolayında genç volkanizma plutonizma ilişkileri (Doktora tezi). İstanbul Teknik Üniversitesi, İstanbul, Türkiye.
• Karacık, Z., Yılmaz, Y., Pearce, J.A., Ece, Ö.I. (2008). Petrochemistry of the South Marmara granitoids, Northwest Anatolia, Turkey. International Journal of Earth Sciences (Geologische Rundschau), 97, 1181-1200.
• Kamakçı, N., Aldanmaz, E., Langereis, C.G., Spell, T.L., Gürer, Ö.F., Zanetti, K.A. (2007). Late Miocene transcurrent tectonics in NW Turkey: Evidence from paleomagnetism and 40Ar/39Ar dating of the alkaline rocks. Geological Magazine, 144(2), 379-392.
• Kürkçüoğlu, B., Furman, T., Hanan, B. (2008). Geochemistry of post-collisional mafic lavas from the North Anatolian Fault Zone, Northwestern Turkey. Lithos, 101, 416-434.
• Krushensky, R.D. (1976). Neogene calc-alkaline extrusive and intrusive rocks of the Karalar–Yeşiller area, Northwest Anatolia, Turkey. Bulletin of Volcanology, 40, 336-360.
• Le Bas, M.J., Le Maitre, R.W., Streckeisen, A., Zanettin, B. (1986). A chemical classification of volcanic rocks based on the total alkali-silica diagram. Journal of Petrology, 27, 745-750.
• Okay, A.I., Satır M. (2000). Coeval plutonism and metamorphism in a latest Oligocene metamorphic core complex in Northwest Turkey. Geological Magazine, 137, 495-516.
• Peccerillo, A., Taylor, S.R. (1976). Geochemistry of Eocene calcalkaline volcanic rocks from the Kastamonu Area, Northern Turkey. Contributions to Mineralogy and Petrology, 58, 63–81.
• Rollinson, H. (1993). Using Geochemical Data: Evaluation, Presentation, Interpretation. Newyork: Longman Scientific & Technical. 352 p.
• Siyako, M., Burkan, K.A., Okay, A.I. (1989). Biga ve Gelibolu Yarımadaları tersiyer jeolojisi ve hidrokarbon olanaklari. Turkish Association of Petroleum Geologist Bulletin, 1, 183–199.
• Söylemezoğlu S., (2009). Kuzey Batı Anadolu'da Çanakkale-Çan yöresi volkanik kayaçlarının jeolojik ve petrolojik özellikleri ve evriminin araştırılması. (Doktora tezi), İstanbul Teknik Üniversitesi, İstanbul, Türkiye.
• Yılmaz, Y. (1989). An approach to the origin of young volcanic rocks of western Turkey. In: Şengör, A.M.C. (Ed.) Tectonic Evolution of the Tethyan Region (pp. 159-189), Kliwer, The Hague.
• Yılmaz, M. (2004). Kirazlı (Çanakkale) bölgesinin volkanik kayalarının petrografik-petrolojik incelemesi ve çıkış merkezleri ile yapısal unsurların araştırılması. (Yüksek lisans tezi), İstanbul Teknik Üniversitesi, İstanbul, Türkiye.
• Yılmaz, Y. Genç, Ş.C., Karacık, Z., Altunkaynak, Ş., (2001). Two contrasting magmatic associations of NW Anatolia and their tectonic significance. Journal of Geodynamics, 31, 243-271.