Natural Radioactivity at the Sin Quyen Iron-Oxide- Copper-Gold Deposit in North Vietnam

• Autorzy: Nguyen D. C. , Khanh P. L. , Jodłowski P. , Pieczonka J. , Piestrzyński A. , Van H. D. , Nowak J.

Identyfikatory

DOI

10.1515/acgeo-2016-0103

• Języki publikacji: EN

Abstrakty

EN

The field radiometric and laboratory measurements were performed at the Sin Quyen copper deposit in North Vietnam. The field gamma-ray spectrometry indicated the concentration of uranium ranging from 5.5 to 87 ppm, thorium from 5.6 to 33.2 ppm, and potassium from 0.3 to 4.7%. The measured dose rates ranged from 115 to 582 nGy/h, the highest doses being at the copper ore. Concentrations in the solid samples were in the range of 20-1700 Bq/kg for uranium, 20-92.7 Bq/kg for thorium, and 7-1345 Bq/kg for potassium. The calculated doses were from 22 to 896 nGy/h; both measured and calculated dose rates are mostly related to uranium. Concentrations of radium in water samples were below 0.17 Bq/L. Uranium in water samples was significantly higher than the hydrogeological background; the maximum of 13 Bq/L was at the waste zone pool, but neither radium nor uranium were present in tap water. Radon concentration in the dwelling air was from 42 to 278 Bq/m³ for ²²² Rn and from 8 to 193 Bq/m3 for ²²⁰Rn. The estimated committed dose rates were principally related to ²²²Rn concentration and ranged from 1.1 to 8.1 mSv/y.

Słowa kluczowe

EN

IOCG; deposit; natural radionuclides; dose rate

PL

IOCG; złoże; naturalne radionuklidy; dawka

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2016
• Tom: Vol. 64, no. 6
• Strony: 2305--2321
• Opis fizyczny: Bibliogr. 18 poz.

Twórcy

autor

Nguyen D. C.

• AGH University of Science and Technology (AGH-UST), Faculty of Geology, Geophysics and Environmental Protection, Krakow, Poland

autor

Khanh P. L.

autor

Jodłowski P.

• AGH University of Science and Technology (AGH-UST), Faculty of Physics and Applied Computer Science, Krakow, Poland

autor

Pieczonka J.

• AGH University of Science and Technology (AGH-UST), Faculty of Geology, Geophysics and Environmental Protection, Krakow, Poland

autor

Piestrzyński A.

• AGH University of Science and Technology (AGH-UST), Faculty of Geology, Geophysics and Environmental Protection, Krakow, Poland

autor

Van H. D.

• University of Mining and Geology (UMG), Hanoi, Vietnam

autor

Nowak J.

• AGH University of Science and Technology (AGH-UST), Faculty of Physics and Applied Computer Science, Krakow, Poland

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)