Petrography and Textural Characteristics of Late Cretaceous Orbicular Gabbro West of Elazığ (Turkey)


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Authors

  • Mehmet Ali Ertürk Fırat University
  • Abdullah Sar Fırat University

DOI:

https://doi.org/10.59287/ijanser.640

Keywords:

Orbicular Gabbro, Late Cretaceous, Petrography, Mineralogy, Magma Mixing, Elazığ, Turkey

Abstract

The lithological units outcropping in the study area are located in the Southeast Anatolian Orogenic Belt, one of the most important parts of the Alpine-Himalayan Orogenic Belt. The units of the study area are Middle Devonian-Lower Cretaceous Keban Metamorphics, Upper Cretaceous Elazığ Magmatics, Upper Maastrichtian-Paleocene Seske Formation, Middle Eocene-Upper Oligocene Kırkgeçit Formation and Quaternary cover units. The study area crops out in a local area within the Hısırık creek in the north of Sarıgül village of Baskil county, which is located in the west of Elazig province in Southeast Turkey. Elazig magmatic complex contains plutonic and sub-volcanic rocks, mainly felsic and mafic compositions. Plutonic rocks with felsic composition include granite, granodiorite, tonalite and quartz monzonites, while sub-volcanic rocks include aplite. Plutonic rocks with mafic composition are represented by diorite, quartz diorite, gabbro and orbicular gabbro, and sub-volcanic rocks are represented by diabase and diorite porphyries.  The orbicular gabbros contain orbicles ranging in size from 1 cm to 15 cm, formed by repetitive concentric circles of fine and coarse grains. All these orbicles consist of concentric circles that show magmatic textures both in macro specimens and under the microscope. Orbicular circles were formed by the crystallisation of basic magma in the form of a circular texture by conventional repetition as a result of adding a basic new magma that was later included in the magma chamber during the crystallisation of basic magma. Mineralogical and petrographic features suggest that the orbicular gabbro is part of mafic igneous enclaves within intrusive mafic rocks.

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Author Biographies

Mehmet Ali Ertürk, Fırat University

Department of Geological Engineering, Elazığ

Abdullah Sar, Fırat University

Department of Geological Engineering, Elazığ

References

B. Barbarin, and J. Didier, 1992, Genesis and evolution of mafic microgranular enclaves through various types of interaction between coexisting felsic and mafic magmas, Transition of the Royal Society Edinburgh Earth Science, vol. 83, pp. 145–153.

Sengör, A.M.C. and Yilmaz, Y., 1981, Tethyan evolution of Turkey: a plate tectonic approach, Tectonophysics, 75, 181–241. https://doi.org/10.1016/0040-1951(81) 90275-4.

B.W. Chappell, and A.J.R. White, 1992, I- and S-type granites in the Lachlan Fold Belt, Transition of the Royal Society Edinburgh Earth Science, vol. 83, pp. 1–26.

B. Chen, B.M. Jahn, and C. Wei, 2002, Petrogenesis of Mesozoic granitoids in the Dabie UHP complex, Central China: trace element and Nd–Sr isotope evidence, Lithos, vol. 60, pp. 67–88.

A. Kaygusuz, M. Arslan, W. Siebel, F. Sipahi, N. İlbeyli, and İ.Temizel, 2014, LA-ICP MS zircon dating, whole-rock and Sr–Nd–Pb–O isotope geochemistry of the Camiboğazı pluton, Eastern Pontides, NE Turkey: Implications for lithospheric mantle and lower crustal sources in arc-related I-type magmatism, Lithos, vol. 192-195, pp. 271–290.

W. T. Schaller, 1911, Orbicular Gabbro from Pala San Diego County, California. U.S. Geol. Surv. Bull, 490: 9-58.

E. Yazgan, and R. Mason, 1988, Orbicular gabbro from near Baskil, southeastern Turkey, Mineralogical Magazine, vol. 52, pp. 161–173.

T. Rızaoğlu, Baskil-Sivrice (Elaziğ) Arasinda Yüzeyleyen Tektonomagmatik Birimlerin Petrografisi Ve Jeokimyasi, PhD Thesis, Çukurova University, Adana.

T. Rızaoğlu, O. Parlak, V. Hoeck, F, Koller, W.E. Hames and Z. Billor Z 2009, Andean-type active margin formation in the eastern Taurides: Geochemical and geochronogical evidence from the Baskil granitoid (Elazığ, SE Turkey), Tectonophysics vol. 473, pp. 188–207. https://doi.org/10.1016/j.tecto.2008.08.011

K. Batten, and D. Clemens-Knott, 1997, Mineralogic Analysis of Orbicular Gabbro, Sierra Nevada Batholith, CA In: Girty, G.H., Hanson, R.E., and Cooper, J.C., (eds.), Geology of the Western Cordillera: Perspectives from Undergraduate Research, Pacific Section S.E.P.M, 82: 103-110.

B. McKınney, 1985, Origin of the Comb Layered and Orbicular Rocks Near Fisher Lake, Sierra Nevada Batholith, California. PhD Thesis, Johns Hopkins University, Baltimore, MD (Unpublished).

S.J, Johnson, E. Bertolett, G. Gualda, J. Davidson and S.J. Hampton 2018, Investigating the origin of an orbicular granite: Karamea, New Zealand. GSA Annual Meeting; 4 Nov. 2018; Indianapolis, Indiana, U. S. A.

M. Turan, and A. F. Bingöl, 1991, Kovancılar Baskil (Elazığ) Arası Bölgenin Tektono-stratigrafik Özellikleri. Ahmet Acar Geology Symposium, Proceedings, Çukurova University, Adana, 213-227.

J. H. Asutay, 1988. The Geology of Baskil (Elazığ) Vicinity and Petrology of Baskil Magmatics. Bulletin of Mineral Research And Exploration, vol. 107, pp. 46-72.

M.A. Ertürk, A. Sar, M.E. Rizeli, 2022, Petrology, zircon U Pb geochronology and tectonic implications of the A1-type intrusions: Keban region, eastern Turkey. Geochemistry vol. 125882.

Ural M, Arslan M, Göncüoğlu MC, Kürüm S (2015) Late Cretaceous arc and back-arc formation within the Southern Neotethys: whole-rock, trace element and Sr-Nd-Pb isotopic data from basaltic rocks of the Yüksekova Complex (Malatya- Elazığ, SE Turkey). Ofioliti 40:57–72.

https://doi.org/10.4454/ofioliti.v40i1.435

Ural M, Sayıt K, Tekin UK (2022) Whole-Rock and Nd-Pb isotope geochemistry and radiolarian ages of the volcanics from the Yüksekova Complex (Maden Area, Elazığ, E Turkey): Implications for a Late Cretaceous (Santonian-Campanian) Back-Arc basin in the southern Neotethys. Ofioliti 47(1):65–83.

https://doi.org/10.4454/ofioliti.v47i1.552

A. Sar, M.A. Ertürk, M.E. Rizeli, 2019, Genesis of late Cretaceous intra-oceanic arc intrusions in the Pertek area of Tunceli Province, Eastern Turkey, and implications for the geodynamic evolution of the southern Neo-Tethys: results of zircon U–Pb geochronology and geochemical and Sr–Nd isotopic analyses. Lithos vol. 350–351, pp. 105263.

M. Beyarslan, E. Okta, MA. Ertürk, 2018. Kale (Malatya) İlçesi Çevresindeki Geç Kretase Yaşlı Yay Magmatitlerinin Jeokimyasal Özellikleri. Erzincan University Journal of Science and Technology vol. 11(2), pp. 191–206. https://doi.org/10.18185/erzifbed.405603

A.I. Okay and O. Tüysüz, Tethyan Sutures of Northern Turkey. Geol. Soc. Lond. Spec. Publ. 1999, vol. 156, pp:475–515. https://doi.org/10.1144/GSL.SP.1999.156.01.22.

E. Yazgan, and R. Chessex, 1991, Geology and tectonic evolution of the Southeastern Taurides in the region of Malatya, TPJD Bulletin, 3, 11-42.

M. Beyarslan, A.F. Bingöl, 2018, Zircon U-Pb age and geochemical constraints on the origin and tectonic implications of late cretaceous intra-oceanic arc magmatics in the Southeast Anatolian Orogenic Belt (SE-Turkey), J. Afr. Earth Sci. 147, 477–497. https://doi.org/10.1016/j.jafrearsci.2018.07.001

S, Kürüm, B, Akgül, A Öztüfekçi Önal, D, Boztuğ, Y, Harlavan and M, Ural M, 2011, An example for arc-type granitoids along collision zones: the Pertek granitoid, Taurus orogenic belt, Turkey. Int. J. Geosci., 2, 214-226.

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Published

2023-05-08

How to Cite

Ertürk, M. A., & Sar, A. (2023). Petrography and Textural Characteristics of Late Cretaceous Orbicular Gabbro West of Elazığ (Turkey). International Journal of Advanced Natural Sciences and Engineering Researches, 7(4), 148–152. https://doi.org/10.59287/ijanser.640

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