A GEOLOGICAL AND PETROLOGICAL OVERVIEW OF THE HISTORY OF KIRA MOUNTAIN: AN APPROACH TO THE SIMILARITY AND DIFFERENCE OF KARACADAG

Yıl 2019, Cilt: 9 Sayı: 1, 44 - 51, 30.06.2019

Süleyman Polat , Hakan Çoban , Şemsettin Caran

https://doi.org/10.36222/ejt.490696

Öz

The volcanism of Kıra Mountain, at south of
the Bitlis Zagros suture zone (BZK), was erupted from different joint systems
by young extensional tectonic regime. The main geological and petrographic
features of the Late Miocene Kıra Mountain volcanics were investigated as well
as the major oxide, trace element and rare earth element geochemical
characteristics. The Kıra Mountain volcanic products are classified as
basanite, tephrite and trachy-basalt and show alkaline character above the
alkaline-subalkaline separation line. Nonetheless, the peripherals associated
with these volcanics starts with the Miocene aged Şelmo Formation. This
formation is accompanied by Oligocene Germik Formation and Eocene Gercus
Formations. The Karacadag volcanics are adjacent to the Lower, Middle and
Late-Cambrian Sadan, Koruk and Sosink Formations, respectively, predominantly
the Precambrian Derik Formation. In addition to these formations, Late
Cretaceous Karababa and Karbogaz Formations, Late Cretaceous-Paleocene Germav
Formation, Eocene Midyat Formation and Eocene Şelmo Formations are also
contiguous. The phenocrysts of the Karacadag volcanics include olivine,
clinopyroxene, plagioclase and opaque minerals. In the Kıra Mountain volcanics,
olivine, plagioclase and opaque minerals are accompanied by sanidine and
pyroxene. As reported by the geochemical and petrographical studies, The
Karacadag volcanics are mainly classified as basalt and trachy-basalt,
tephrite, basanite and hawaiite. Moreover these lavas are mainly alkaline and present
subalkaline transition. The Karacadag volcanics erupted in three different
stages with different phases, and the Kıra mountain volcanics were found to be
identical with the Siverek stage. 

Anahtar Kelimeler

Kıra Mount, Batman, Karacadag, basalt

Kaynakça

• [1] Abdel-Rahman, A.M., Mesozoic Volcanism in the Middle East: Geochemical, Isotopic and Petrogenic Evolution of Extension Related Alkali Basalts from Central Lebanon. Geological Magazine 139/6 (2002), pp. 621–640
• [2] Canpolat, E., Geomorphology of Karacadag (Diyarbakır) Volcano, Master Thesis, Istanbul University Institute of Social Sciences Department of Geography, Istanbul, Turkey, 2005
• [3] Ekici, T., Macpherson, C. G., Otlu, N., Polybaric Melting of a Single Mantle Source During the Neogene Siverek Phase of the Karacadag Volcanic Complex, SE Turkey, Lithos (2012), 146-147, pp. 152-163
• [4] Ekici, T., Macpherson, C. G., Otlu, N., Fontignie, D., Foreland Magmatism During the Arabia-Eurasia Collision: Pliocene-Quaternary Activity of the Karacadag Volcanic Complex, SW Turkey, Journal of Petrology Volume 55 (2012)., Number 9, pp. 1753-1777
• [5] Ercan, T., Şaroğlu, F., Turhan, N., Matsuda, J. I., U, T., Fujitani, T., v.d., Geology and Petrology of Karacadag Volcanites. Bulletin of the Geological Society of Turkey, S 6 (1991), pp. 118-133
• [6] Irvine, T. N., Baragar, W. R. A., A Guide to the Chemical Classification of the Common Volcanic Rocks. Canadian Journal of Earth Sciences 8 (1971), pp. 523-548
• [7] Kalkan, Ö., Petrogenesis of the Basalts of Kıra Mount (Batman), Master Thesis, Batman University Graduate School of Natural and Applied Sciences, Batman. Turkey, 2014
• [8] Kavak, O., Diyarbakır ve Çevresinde Yer Alan Karacadag Volkaniti’nin Genel Özellikleri. (General properties of Karacadag Volcanite in Diyarbakir and its Surroundings), Karacadag and the Book of Environment, Uzman Printing, Page 361-372, Diyarbakır, Turkey, 2013
• [9] Le Bas, M.J., Le Maitre, R.W., Streckeisen, A., Zanettin, B., A Chemical Classification of Volcanic Rocks Based on the Total Alkali-Silica Diagram. Journal of Petrology 27 (1986), pp. 745–750
• [10] Lustrino, M., Keskin, M., Mattioli, M., Lebedev,V. A., Chugaev, A., Sharkov, E., Kavak, O., Early Activity of the Largest Cenozoic Shield Volcano in the Circum-Mediterranean Area: Mt. Karacadag, SE Turkey. European Journal of Mineralogy 22 (2010), pp. 343-362
• [11] Lustrino, M., Keskin, M., Mattioli, M., Kavak, O.,.Heterogeneous Mantle Sources Feeding the Volcanic Activity of Mt. Karacadag (SE Turkey), Journal of Asian Earth Sciences 46 (2012), pp. 120–139
• [12] MTA, 2002. 1/500 000 Scale Geological Map of Turkey, Diyarbakır, Ankara
• [13] Yeşilova, Ç., Helvacı, C., Stratigraphy and Sedimentology of the North of Batman-Siirt, Bulletin of TPDJ, Volume 23 (2012), Issue 2, pp. 7-49
• [14] Yeşilova, G. P., Helvacı, C., Diagenesis and Paleogeographic Development of Oligocene Evaporites (Kurtalan, SW Siirt) in Germik Formation, Hacettepe University Earth Sciences Application and Research Center Bulletin, 34/1 (2013), pp. 1-22