Investigation of the Natural and Artificial Radioactivity Levels in the Demirkaynak (Koza) Gold Mine Area (Gumushane, Turkiye) from the Perspectives of Environmental Geochemistry and Medical Geology
Keywords:
Demirkaynak (Koza) Gold Mine, Natural radioactivity, Artificial radioactivity, Environmental geochemistry, Medical geology, Gumushane
Abstract
The aim of this study is to investigate the levels of natural and artificial radioactivity in the soils of the Demirkaynak (Koza) mining site located in Gümüşhane, Türkiye, from the perspectives of environmental geochemistry and medical geology. For this purpose, ten soil samples were collected from selected points considering the lithological, general geological, and alteration characteristics of the site. The natural (226Ra, 232Th, and 40K) and artificial (137Cs) radioisotope activities of the collected soil samples were measured using appropriate analysis procedures with the Poptop Ortec Gamma-ray detector. The obtained activity values were utilized to calculate the radiation hazard indices of the sampling points, and an evaluation of the mining site soils was conducted within the context of medical geology and environmental geochemistry. The study revealed that the 226Ra and 232Th activities in the soils of the Demirkaynak (Koza) gold mining site did not exceed the weighted world average values (threshold values), while 40K activities surpassed the weighted world average values (400 Bq/kg and/or 420 Bq/kg) in some sampling points. The elevated radioisotope activities in the area were found to be associated with intense development of hydrothermal alteration, indicating the effectiveness of alteration processes (potassic, sericitic alteration) in potassium (K) enrichments. The 137Cs radioisotope activities in the area reached up to 3.3 Bq/kg, suggesting the presence of anthropogenic enrichment in the region. When considering the calculated radiation hazard indices for the site, it was observed that the absorbed dose rate values and annual effective dose rate values exceeded threshold values in some sampling points, indicating a significant level of radiation risk in the area.
References
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[16] Vural A. Investigation of the radiation risk to the inhabitants in the region close to the hydrothermal alteration site, Gümüşhane/Turkey. Journal of Engineering Research and Applied Science 2019; 8:1168–1176.
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[29] Ali M, Wasim M, Iqbal S, Arif M, Saif F. Determination of the risk associated with the natural and anthropogenic radionuclides from the soil of Skardu in Central Karakoram. Radiation Protection Dosimetry 2013; 156:213–222.
[30] Jasaitis D, Klima V, Pečiulienė M, Vasiliauskienė V, Konstantinova M. Comparative Assessment of Radiation Background Due to Natural and Artificial Radionuclides in Soil in Specific Areas on the Territories of State of Washington (USA) and Lithuania. Water, Air, and Soil Pollution 2020; 231.
[31] Vural A, Erdoğan M. Eski Gümüşhane Kırkpavli Alterasyon Sahasında Toprak Jeokimyası. Gümüşhane Üniversitesi Fen Bilimleri Enstitüsü Dergisi 2014; 4:1–15.
[32] Vural A, Erşen F. Geology, mineralogy and geochemistry of manganese mineralization in Gumushane, Turkey. Journal of Engineering Research and Applied Science 2019; 8:1051–1059.
[33] Vural A, Akpınar İ, Kaygusuz A. Petrological characteristics of Cretaceous volcanic rocks of Demirören (Gümüşhane, NE Turkey) region. Journal of Engineering Research and Applied Science 2021; 10:1828–1842.
[34] Vural A, Kaygusuz A. Geochronology, petrogenesis and tectonic importance of Eocene I-type magmatism in the Eastern Pontides, NE Turkey. Arabian Journal of Geosciences 2021; 14:467.
[35] 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.
[36] Lermi A. Midi (Karamustafa/Gümüşhane, KD Türkiye) Zn-Pb Yatağının Jeolojik, Mineralojik, Jeokimyasal ve Kökensel İncelemesi. Karadeniz Teknik Üniversitesi, Trabzon, 2003.
[37] Yazıcı E., Dursun Ö, Güner S, Eroğlu Cİ, Selvi S, Deniz N. Gümüşhane-Bayburt-Artvin yörelerine ait epitermal altın aramaları. Ankara, Türkiye: 2010.
[38] Yılmaz Y. Petrology and structure of the Gümüşhane granite and surrounding rocks, NE Anatolia. 1972.
[39] 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 2019; 158:195–216.
[40] Kaygusuz A, Arslan M, Siebel W, Sipahi F, Ilbeyli N. Geochronological evidence and tectonic significance of Carboniferous magmatism in the southwest Trabzon area, eastern Pontides, Turkey. International Geology Review 2012; 54:1776–1800.
[41] Kaygusuz A. Geochronological age relationships of Carboniferous Plutons in the Eastern Pontides (NE Turkey). Journal of Engineering Research and Applied Science 2020; 9:1299–1307.
[42] Topuz G, Altherr R, Siebel W, Schwarz WH, Zack T, Hasözbek A, Barth M, Satir M, Şen C. Carboniferous high-potassium I-type granitoid magmatism in the Eastern Pontides: The Gümüşhane pluton (NE Turkey). Lithos 2010; 116:92–110.
[43] 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 2016; 39:327–346.
[44] Eren M. Gümüşhane-Kale Arasının Jeolojisi ve Mikrofasiyes incelemesi. Karadeniz Teknik Üniversitesi, 1983.
[45] Pelin S. Alucra (Giresun) Güneydoğu Yöresinin Petrol Olanakları Bakımından Jeolojik İncelenmesi. Karadeniz Teknik Üniversitesi Yayınları 1977:87–103.
[46] Tokel S. Stratigraphical and volcanic history of Gümüşhane region. 1972.
[47] Saydam Eker C, Korkmaz S. Mineralogy and whole rock geochemistry of late Cretaceous sandstones from the eastern Pontides (NE Turkey). Neues Jahrbuch Fur Mineralogie, Abhandlungen 2011; 188:235–256.
[48] 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.
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Published
2023-12-31
How to Cite
Vural, A., & Kaya, A. (2023). Investigation of the Natural and Artificial Radioactivity Levels in the Demirkaynak (Koza) Gold Mine Area (Gumushane, Turkiye) from the Perspectives of Environmental Geochemistry and Medical Geology. Journal of Engineering Research and Applied Science, 12(2), 2401-2413. Retrieved from http://www.journaleras.com/index.php/jeras/article/view/325
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