Geochemistry of uranium and thorium and natural radioactivity levels of the western Anatolian plutons, Turkey

Argyrios Papadopoulos; Şafak Altunkaynak; Antonios Koroneos; Alp Ünal; Ömer Kamaci

doi:10.1007/s00710-017-0492-4

Geochemistry of uranium and thorium and natural radioactivity levels of the western Anatolian plutons, Turkey

Argyrios Papadopoulos^*, Şafak Altunkaynak, Antonios Koroneos, Alp Ünal, Ömer Kamaci

^*Bu çalışma için yazışmadan sorumlu yazar

Aristotle University of Thessaloniki

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

7 Atıf (Scopus)

Özet

Seventy samples from major plutons (mainly granitic) of Western Anatolia (Turkey) have been analyzed by γ-ray spectrometry to determine the specific activities of ²³⁸U, ²²⁶Ra, ²³²Th and ⁴⁰K (Bq/kg). Τhe natural radioactivity ranged up to 264 Bq/kg for ²³⁸U, 229.62 Bq/kg for ²²⁶Ra, up to 207.32 Bq/kg for ²³²Th and up to 2541.95 Bq/kg for ⁴⁰K. Any possible relationship between the specific activities of ²²⁶Ra, ²³⁸U, ²³²Th and ⁴⁰K and some characteristics of the studied samples (age, rock-type, colour, grain size, occurrence, chemical and mineralogical composition) was investigated. Age, major and trace element geochemistry, color, pluton location and mineralogical composition are likely to affect the concentrations of the measured radionuclides. The range of the Th/U ratio was large (0.003–11.374). The latter, along with ²²⁶Ra/²³⁸U radioactive secular disequilibrium, is also discussed and explained by magmatic processes during differentiation.

Orijinal dil	İngilizce
Sayfa (başlangıç-bitiş)	677-691
Sayfa sayısı	15
Dergi	Mineralogy and Petrology
Hacim	111
Basın numarası	5
DOI'lar	https://doi.org/10.1007/s00710-017-0492-4
Yayın durumu	Yayınlandı - 1 Eki 2017

Bibliyografik not

Publisher Copyright:
© 2017, Springer-Verlag Wien.

Finansman

The authors are grateful to Dr. Sevilay Hacıyakupoğlu, Istanbul Technical University Energy Institute, for the radioactivity measurements. The authors also would like to thank the Associate Editor Prof. Anton Beran, Prof. Altuğ Hasözbek and an anonymous reviewer for their constructive comments that helped to improv significantly the manuscript. This study has been funded by grants from the Istanbul Technical University (BAP Project No: 38664, 37883 and 36010), the Turkish Research Council (TUBITAKCAYDAG-112Y093) and the Research Committee of the Aristotle University of Thessaloniki. The authors are grateful to Dr. Sevilay Hac?yakupo?lu, Istanbul Technical University Energy Institute, for the radioactivity measurements. The authors also would like to thank the Associate Editor Prof. Anton Beran, Prof. Altu? Has?zbek and an anonymous reviewer for their constructive comments that helped to improv significantly the manuscript. This study has been funded by grants from the Istanbul Technical University (BAP Project No: 38664, 37883 and 36010), the Turkish Research Council (TUBITAKCAYDAG-112Y093) and the Research Committee of the Aristotle University of Thessaloniki.

Finansörler	Finansör numarası
Istanbul Technical University Energy Institute
Turkish Research Council	TUBITAKCAYDAG-112Y093
British Association for Psychopharmacology	37883, 38664, 36010
Research Committee, Aristotle University of Thessaloniki
Istanbul Teknik Üniversitesi

Belgeye Erişim

10.1007/s00710-017-0492-4

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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title = "Geochemistry of uranium and thorium and natural radioactivity levels of the western Anatolian plutons, Turkey",

abstract = "Seventy samples from major plutons (mainly granitic) of Western Anatolia (Turkey) have been analyzed by γ-ray spectrometry to determine the specific activities of 238U, 226Ra, 232Th and 40K (Bq/kg). Τhe natural radioactivity ranged up to 264 Bq/kg for 238U, 229.62 Bq/kg for 226Ra, up to 207.32 Bq/kg for 232Th and up to 2541.95 Bq/kg for 40K. Any possible relationship between the specific activities of 226Ra, 238U, 232Th and 40K and some characteristics of the studied samples (age, rock-type, colour, grain size, occurrence, chemical and mineralogical composition) was investigated. Age, major and trace element geochemistry, color, pluton location and mineralogical composition are likely to affect the concentrations of the measured radionuclides. The range of the Th/U ratio was large (0.003–11.374). The latter, along with 226Ra/238U radioactive secular disequilibrium, is also discussed and explained by magmatic processes during differentiation.",

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author = "Argyrios Papadopoulos and {\c S}afak Altunkaynak and Antonios Koroneos and Alp {\"U}nal and {\"O}mer Kamaci",

note = "Publisher Copyright: {\textcopyright} 2017, Springer-Verlag Wien.",

year = "2017",

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doi = "10.1007/s00710-017-0492-4",

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AU - Papadopoulos, Argyrios

AU - Altunkaynak, Şafak

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AU - Ünal, Alp

AU - Kamaci, Ömer

PY - 2017/10/1

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N2 - Seventy samples from major plutons (mainly granitic) of Western Anatolia (Turkey) have been analyzed by γ-ray spectrometry to determine the specific activities of 238U, 226Ra, 232Th and 40K (Bq/kg). Τhe natural radioactivity ranged up to 264 Bq/kg for 238U, 229.62 Bq/kg for 226Ra, up to 207.32 Bq/kg for 232Th and up to 2541.95 Bq/kg for 40K. Any possible relationship between the specific activities of 226Ra, 238U, 232Th and 40K and some characteristics of the studied samples (age, rock-type, colour, grain size, occurrence, chemical and mineralogical composition) was investigated. Age, major and trace element geochemistry, color, pluton location and mineralogical composition are likely to affect the concentrations of the measured radionuclides. The range of the Th/U ratio was large (0.003–11.374). The latter, along with 226Ra/238U radioactive secular disequilibrium, is also discussed and explained by magmatic processes during differentiation.

AB - Seventy samples from major plutons (mainly granitic) of Western Anatolia (Turkey) have been analyzed by γ-ray spectrometry to determine the specific activities of 238U, 226Ra, 232Th and 40K (Bq/kg). Τhe natural radioactivity ranged up to 264 Bq/kg for 238U, 229.62 Bq/kg for 226Ra, up to 207.32 Bq/kg for 232Th and up to 2541.95 Bq/kg for 40K. Any possible relationship between the specific activities of 226Ra, 238U, 232Th and 40K and some characteristics of the studied samples (age, rock-type, colour, grain size, occurrence, chemical and mineralogical composition) was investigated. Age, major and trace element geochemistry, color, pluton location and mineralogical composition are likely to affect the concentrations of the measured radionuclides. The range of the Th/U ratio was large (0.003–11.374). The latter, along with 226Ra/238U radioactive secular disequilibrium, is also discussed and explained by magmatic processes during differentiation.

KW - Granite

KW - REEs

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KW - Western Anatolia

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ER -

Geochemistry of uranium and thorium and natural radioactivity levels of the western Anatolian plutons, Turkey

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