SavedAdd your journal

Journals / Geosound / 2006 / Cilt: 0 - Sayı: 48-49

The effect of mineralogic and geochemical features of the gneisses on the formation of Köprübaşı (Manisa) uranium deposit

Gnaysların mineralojik ve jeokimyasal özelliklerinin Köprübaşı (Manisa) uranyum yatağı oluşumuna etkisi

Hülya KAÇMAZ
M. Eran NAKOMAN
Journal
Geosound
Pages
149–158
Publication Date
2022-10-18
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The high U content of these gneisses are correlated with the granitic protolith of the gneisses and is assumed here to be one of the most important factors providing the formation of uranium deposit in the Köprübaşı area.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The Köprübaşı uranium deposit is one of the largest uranium deposits in Turkey.
📊
Key Findings & Data:The main source for the uranium is uraniferous gneisses that provided sediment for the host sandstone and conglomerate.Gneisses consist mainly of quartz, biotite, muscovite, plagioclase (albite and oligoclase) andK-feldspar (orthoclase, sanidine and microcline) with minor zircon, apatite and turmaline.
💡
Conclusion & Impact:The high U content of these gneisses are correlated with the granitic protolith of the gneisses and is assumed here to be one of the most important factors providing the formation of uranium deposit in the Köprübaşı area.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The Köprübaşı uranium deposit is one of the largest uranium deposits in Turkey. The deposit is hosted in Neogene fluvial sediments. The main source for the uranium is uraniferous gneisses that provided sediment for the host sandstone and conglomerate.Gneisses consist mainly of quartz, biotite, muscovite, plagioclase (albite and oligoclase) andK-feldspar (orthoclase, sanidine and microcline) with minor zircon, apatite and turmaline. Geochemical data show that the analysed gneisses are orthogneisses. The orthogneisses have a composition of per aluminous. They originated by metamorphism of granite or granitoid with S-type geochemical affinities. Samples collected to be representative of various kinds of these gneisses in Köprübaşı area, without regard to their radioactivity in the field, ranged from 2.7 ppm to 8.3 ppm. These values show that the Köprübaşı gneisses contain uranium in concentration above the crustal average (2.6 ppm). The high U content of these gneisses are correlated with the granitic protolith of the gneisses and is assumed here to be one of the most important factors providing the formation of uranium deposit in the Köprübaşı area.

Özet

Köprübaşı uranyum yatağı Türkiye'deki en önemli uranyum yataklarından biridir. Yatak Neojen fluviyal sedimentler içerisindedir. Uranyumun ana kaynağı kumtaşı ve konglomeralara sediment sağlayan uranyumlu gnayslardır. Gnayslar çoğunlukla, kuvars, biotit, muskovit, plajioklas (albit ve oligoklas), K-feldspat (ortoklas, sanidin ve mikroklin), az miktarlarda ise apatit, zirkon ve turmalin içermektedir. Jeokimyasal veriler bölgedeki gnaysların ortognays ve peralüminalı bileşime sahip olduğunu göstermektedir. Köken olarak granit-granodiyorit bileşime sahip olup S tipi granit özelliğindedir. Radyoaktivite ölçümü yapılmaksızın çalışma alanını temsilen alınan gnays örneklerinde uranyum miktarının 2.7 ppm ile 8.3 ppm arasında değiştiği görülmüştür. Bu değerler gnaysların kabuk ortalamasının üzerinde (2.6 ppm) uranyum içerdiğini göstermektedir. Çalışma alanındaki gnaysların yüksek uranyum içeriği bu gnaysların granitik kökeni ile doğrudan ilişkilidir ve Köprübaşı uranyum yatağının oluşumunu sağlayan en önemli faktörlerden biri olarak kabul edilebilir.

🔖

Cite This Article

KAÇMAZ, H., NAKOMAN, M. E. (2022). The effect of mineralogic and geochemical features of the gneisses on the formation of Köprübaşı (Manisa) uranium deposit. Geosound, Cilt: 0 - Sayı: 48-49, 149–158. https://ajindex.com/articles/524858

References (7)

  1. Candan, O., Oberhansh, R., Dora, O.Ö., Partzsch, J. ve Çetinkaplan. M. 2000. Polyphase teetono-metamorphic evolution of the Pan- African basement of the Menderes massif: granulite, eclogitc and amphibolite fades metamorphism. Abstracts, IESCA-2000, International Earth Sciences Colloquium on the Aegean Region, Izmir, p. 134. Chappell, B.J. and White, A.J.R., 1974. "Two Contrasting Granite Types". Pac. Geol.,v8, pp.173-174.
  2. Churchill, R. 1991. Geologic Controls on the Distribution of Radon in California, The Department of Health Services. Dostal, J. and Capedri, S. 1978.
  3. Uranium in metamorphic rocks, Contributions to Mineralogy and Petrology, Volume: 66, page: 409 - 414. Dyck W. 1979. The mobility and concentration of uranium and its decay products in temperate surficial environments: in Kimberley, M.M.,ed., Uranium deposit: Their Mineralogy and Origin, Mineralogical Association of Canada, Short Course Volume 3, University of Toronto Pres, p. 57-100.
  4. Garrels, R.M. & Mckenzie, F.T., 1971. Evolution of Sedimentary Rocks. W. W. Norton New York, NY. Heier, K.S. 1979. The Movement of Uranium during Higher Grade Metamorphic Processes. Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, Volume 291, Issue 1381, pp. 413-421
  5. Hine, R., Williams, I.S., Chappell, B.W. and White, A.J.R., 1978. Contrasts Between I- and S-Type granitoids of the Kosciusco Batholith, J. Geol. Soc. Aust., Klepper, M. R. and Wyand, D. G. 1956. Uranium provinces, in Page, L.R., Stocking HE., and Smith, H.B., eds. Contribution to the geology of uranium and trhorium by United States Geological Survey and Atomic Energy Commision for the United Nations International Conference on peaceful uses of atomic energy, Genewa, Switzerland, 1955, U.S Geological Survey Profesional Paper 300, p. 17-26.
  6. Koralay, O.E., Satır, M. and Dora, O.Ö. 1998. Geochronologic evidence of Triassic and Precambrian magmatism in the Menderes Massif, west Turkey. 3rd International Turkish Geology Symposium, Abstracts, p. 285. Larsen, E. S. ve Gottfried, D. 1961 "Distribution of Uranium in Rocks and Minerals of Mesozoic Batholiths in Western United States." pp. 63-103. 8vo, printed wrappers. Washington, D.C. USGPO. Geological Survey Bulletin 1070-C. Maden Tetkik Arama (1976). Köprübaşı Bölgesi Uranyum Yataklarına ait Rapor. MTA Enstitüsü, Radyoaktif Mineraller ve Kömür Dairesi Başkanlığı, Radyoaktif Mineraller Arama Servisi, Ankara.
  7. Marc, D. 1992. Granites and rhyolites from