Rare Earth Element Potentials of Red-Colored Eocene Kazmaca and Upper Eocene-Lower Miocene Incik and Bayindir Formations (Kirikkale, Türkiye)

Yıl 2025, Cilt: 178 Sayı: 178, 1 - 3

Berna Yavuz Pehlivanlı , Menevşe Altan

Öz

The red-colored sedimentary rocks of the Kazmaca, Incik, and Bayindir formations, particularly the red mudstones, exhibit noteworthy enrichment in Rare Earth Elements (REEs) and uranium. These fine-grained units were deposited in low-energy lacustrine to shallow-marine environments, where redox-sensitive geochemical processes played a central role in elemental
mobilization and accumulation.
Mineralogical and geochemical analyses, including XRD, XRF, and ICP-MS, identified the uranium-bearing mineral Fourmarierite, confirming the presence of uranium mineralization. This finding is supported by elevated Cu/Al ratios, increased Fe concentrations, and trace-element distributions indicative of a redox-controlled diagenetic environment. The high Fe concentrations and Cu/Al ratios act as geochemical proxies for REE-hosting phases.
The depositional setting, characterized by low dissolved oxygen levels, likely reflects a warm and humid paleoclimate that enhanced chemical weathering and facilitated the mobilization and subsequent precipitation of uranium and REEs. Notably, dark-colored mudstone interbeds within the sandstone sequences exhibit localized uranium accumulation, which may represent precursor zones for secondary REE mineralization.
These findings underscore the importance of redox conditions and climatic factors in controlling REE and uranium enrichment in red bed sequences. The presence of Fourmarierite, in conjunction with distinctive geochemical signatures, suggests a significant potential for REE exploration in these formations.

Anahtar Kelimeler

Rare Earth Elements (REEs) , Fourmarierite , Red Sedimentary Rocks , Kazmaca Formation , Incik Formation , Bayindir Formation

Etik Beyan

This study was supported by the Scientific Research Projects Unit of Yozgat Bozok University under the Master's thesis project titled “Rare Earth Element Potential of the Red-Colored Eocene-Aged Kazmaca formation and Upper Eocene–Lower Miocene-Aged İncik and Bayındır Formations Outcropping Around Kırıkkale” (Project No: FYL-2024-1440)

Destekleyen Kurum

This study was supported by the Scientific Research Projects Unit of Yozgat Bozok University under the Master's thesis project titled “Rare Earth Element Potential of the Red-Colored Eocene-Aged Kazmaca formation and Upper Eocene–Lower Miocene-Aged İncik and Bayındır Formations Outcropping Around Kırıkkale” (Project No: FYL-2024-1440)

Proje Numarası

Project No: FYL-2024-1440

Teşekkür

This study was supported by the Scientific Research Projects Unit of Yozgat Bozok University under the Master's thesis project titled “Rare Earth Element Potential of the Red-Colored Eocene-Aged Kazmaca formation and Upper Eocene–Lower Miocene-Aged İncik and Bayındır Formations Outcropping Around Kırıkkale” (Project No: FYL-2024-1440)

Kaynakça

• Alloway, B. J. (2013). Heavy metals in soils: Trace metals and metalloids in soils and their bioavailability (Vol. 22). Springer Science & Business Media.
• Banfield, J. F., & Eggleton, R. A. (1989). Apatite replacement and rare-earth mobilization, fractionation, and fixation during weathering. Clays and Clay Minerals, 37(2), 113–127.
• Bao, Z. W., & Zhao, Z. H. (2008). Geochemistry of mineralization with exchangeable REY in the weathering crusts of granitic rocks in South China. Ore Geology Reviews, 33(3–4), 519–535. https://doi.org/10.1016/j.oregeorev.2007.03.005
• Birgili, Ş., Yoldaş, R., & Ünalan, G. (1975). Çankırı-Çorum havzasının jeolojisi ve petrol olanakları (Report No. 5621). Maden Tetkik ve Arama Genel Müdürlüğü. [Unpublished report, in Turkish].
• Boynton, W. V., & Henderson, P. (1984). Rare earth element geochemistry. Elsevier.
• Brookins, D. G. (1988). Eh-pH diagrams for geochemistry. Springer.
• Chakhmouradian, A. R., & Wall, F. (2012). Rare earth elements: Minerals, mines, magnets (and more). Elements, 8(5), 333–340.
• Cuney, M., & Kyser, K. (2009). Recent and not-so-recent developments in uranium deposits and implications for exploration. In Mineralogical Association of Canada Short Course (Vol. 39, pp. 13–68).
• Dahlkamp, F. J. (1993). Uranium ore deposits. Springer.
• Dill, H. G. (2010). The geology of aluminum phosphates and sulphates of the alunite group minerals: A review. Earth-Science Reviews, 101(1–2), 1–35. https://doi.org/10.1016/j.earscirev.2010.01.002
• Ding, J. Y. (2012). Historical review of the ionic rare earth mining: In honor of the 60th anniversary of GNMRI. Nonferrous Metals Science and Engineering, 3(4), 14–19. (in Chinese with English abstract).
• Finch, R. J., & Murakami, T. (1999). Systematics and paragenesis of uranium minerals. In P. C. Burns & R. Finch (Eds.), Uranium: Mineralogy, geochemistry and the environment (Vol. 38, pp. 91–179). Mineralogical Society of America.
• Frondel, C. (1958). Systematic mineralogy of uranium and thorium (U.S. Geological Survey Bulletin 1064). U.S. Government Printing Office.
• Hakyemez, Y., Barkut, M. Y., Bilginer, E., Pehlivan, Ş., Can, B., Dağer, Z., & Sözeri, B. (1986). Yapraklı-Ilgaz Çankırı-Çandır dolayının jeolojisi (Report No. 7966). Maden Tetkik ve Arama Genel Müdürlüğü. [Unpublished report, in Turkish].
• Henderson, P. (1984). Rare earth element geochemistry. Elsevier.
• Jahn, B. M., Glikson, A. Y., Peucat, J. J., & Hickman, A. H. (1981). REE geochemistry and isotopic data of Archean silicic volcanics and granitoids from the Pilbara block, Western Australia—Implications for the early crustal evolution. Geochimica et Cosmochimica Acta, 45(9), 1633–1652.
• Kabata-Pendias, A., & Pendias, H. (2011). Trace elements in soils and plants (4th ed.). CRC Press.
• Karadenizli, L. (1999). Çankırı-Çorum havzasındaki Orta Eosen – Erken Miyosen tortullarının sedimantolojisi [Unpublished doctoral dissertation]. Ankara Üniversitesi.
• Karadenizli, L., Saraç, G., Şen, Ş., Seyitoğlu, G., Antoine, P. O., Kazancı, N., Varol, B., … & Hakyemez, Y. (2004). Çankırı-Çorum havzasının batı ve güney kesiminin memeli fosillere dayalı Oligo-Miyosen biyostratigrafisi ve dolgulama evrimi (Report No. 10706). Maden Tetkik ve Arama Genel Müdürlüğü. [Unpublished report, in Turkish].
• Kulaman, Ç., & Ünal Çakır, E. (2024). Microthermometric characteristics of Şaphane (Oğuzlar-Çorum) Au mineralisation, Türkiye. Engineering Sciences, 13(1), 41–48.
• Kynicky, J., Smith, M. P., & Xu, C. (2012). Diversity of rare earth deposits: The key example of China. Elements, 8(5), 361–367.
• Langmuir, D. (1978). Uranium solution–mineral equilibria at low temperatures with applications to sedimentary ore deposits. Geochimica et Cosmochimica Acta, 42(6), 547–569.
• Larson, A., Smith, R. D., & Johnson, T. E. (2017). Rare earth element fractionation in uranium ore and its U(VI) alteration products. Geochimica et Cosmochimica Acta, 207, 210–223.
• Lottermoser, B. G. (1990). Rare-earth elements and ore formation processes. Lithos, 24(2), 151–167. https://doi.org/10.1016/0024-4937(90)90022-R
• Lottermoser, B. G. (2010). Mine wastes: Characterization, treatment and environmental impacts (3rd ed.). Springer. https://doi.org/10.1007/978-3-642-12419-0
• Maden Tetkik ve Arama Genel Müdürlüğü. (2002). 1/500.000 ölçekli Kayseri ve Sinop harita paftası. Ankara.
• Morteani, G., & Preinfalk, C. (1996). REE distribution and REE carriers in laterites formed on the alkaline complexes of Araxa and Catalo (Brazil). In A. P. Jones, F. Wall, & C. T. Williams (Eds.), Rare earth minerals: Chemistry, origin and ore deposits (pp. 227–252). Chapman & Hall.
• Möller, P. (1989). The behavior of rare earth elements in ore formation. In P. Möller & P. Černý (Eds.), Lanthanides, tantalum and niobium (pp. 121–146). Springer. https://doi.org/10.1007/978-94-009-1195-2_6
• Price, R. C., Gray, C. M., Wilson, R. E., Frey, F. A., & Taylor, S. R. (1991). The effects of weathering on rare- earth element, Y and Ba abundances in Tertiary basalts from southeastern Australia. Chemical Geology, 93(3– 4), 245–265.
• Rollinson, H. (1993). Using geochemical data: Evaluation, presentation, interpretation. Longman Scientific & Technical.
• Sanematsu, K., Kon, Y., Imai, A., Watanabe, K., & Watanabe, Y. (2013). Geochemical and mineralogical characteristics of ion-adsorption type REE mineralization in Phuket, Thailand. Mineralium Deposita, 48(4–5), 437–451.
• Sanematsu, K., Moriyama, T., Sotouky, L., & Watanabe, Y. (2011). Mobility of rare earth elements in basalt- derived laterite at the Bolaven Plateau, southern Laos. Resource Geology, 61(2), 140–158.
• Taunton, A. E., Welch, S. A., & Banfield, J. F. (2000). Microbial controls on phosphate and lanthanide distributions during granite weathering and soil formation. Chemical Geology, 169(3–4), 371–382.
• Wang, D. H., Zhao, Z., Yu, Y., Dai, J. J., Deng, M. C., Zhao, T., & Liu, L. J. (2018). Exploration and research progress on ion-adsorption type REE deposit in South China. China Geology, 3(3), 415–424.
• Wedepohl, K. H. (1995). The composition of the continental crust. Geochimica et Cosmochimica Acta, 59(7), 1217–1232.
• Wronkiewicz, D. J., & Buck, E. C. (1996). Uranium mineralogy and geochemistry in the oxidized zone of the Koongarra uranium deposit, Northern Territory, Australia. Applied Geochemistry, 11(5), 571–587.
• Xiong, Y., & Wang, Z. (2018). Rare earth element partitioning between fluids and uraninite at 50 °C: Implications for secondary REE mineralization. Economic Geology, 113(7), 1345–1358.
• Yang, Y. Q., Hu, C. S., & Luo, Z. M. (1981). Geological characteristics of mineralization of rare earth deposits of the ion-absorption type and their prospecting direction. Bulletin of the Chinese Academy of Geological Sciences, 2(1), 102–118. (in Chinese with English abstract).
• Yavuz Pehlivanlı, B. (2019). The REE characteristics of oil shales in the Lower Eocene Celtek Formation (Yozgat, Türkiye) and their relation to tectonic provenance. Acta Geologica Sinica – English Edition, 93(3), 604–621.
• Yavuz Pehlivanlı, B. (2022). Nadir toprak elementlerinin (NTE) maden yataklarında köken belirteci olarak kullanılması. In Anadolu 11th International Conference on Applied Sciences (pp. 1219–1229). Diyarbakır, Türkiye.
• Yoldaş, R. (1982). Tosya (Kastamonu) ile Bayat (Çorum) arasındaki bölgenin jeolojisi [Unpublished doctoral dissertation]. İstanbul Üniversitesi Fen Fakültesi.
• Zeng, K., Li, L. T., & Zhu, X. P. (2019). The metallogenic regularity and prospecting potential of rare earth deposits of ion-adsorption type in the Mengwang–Manmai area, Western Yunnan. Geological Exploration, 55(1), 21–31.