Monitoring of the gamma radiation in Valle del Cervo Pluton was performed by determining U and Th contents in the main rock types cropping out over the entire area and pertaining to the granitic complex, syenitic complex and monzonitic complex. In particular, syenitic rocks were largely used as building and ornamental materials (e.g. Sienite della Balma). All the samples are fresh and do not present joints or fractures filled with U minerals. In the crushed samples the activity of uranium varies from 346 to 764 Bq/kg. Concentration of thorium varies from 202 to 478 Bq/kg. For all the analysed rocks uranium activity is higher than thorium one. The lowest value of radioactive concentration is referred to rocks of the granitic complex. The most active rocks are syenites. The data confirm the high activities of Valle del Cervo rock types, strongly connected with high K content of the source magma (geochemical signature); on the contrary, the activity seems to be not related to the location of the samples. © 2006 Oxford University Press.

Sesana, L., Fumagalli, M., Carnevale, M., Polla, G., Facchini, U., Colombo, A., et al. (2006). Natural radionuclides in the rocks of the Valle del Cervo pluton in Piedmont. RADIATION PROTECTION DOSIMETRY, 118(3), 337-344 [10.1093/rpd/nci347].

Natural radionuclides in the rocks of the Valle del Cervo pluton in Piedmont

TUNESI, ANNALISA MARIA;
2006

Abstract

Monitoring of the gamma radiation in Valle del Cervo Pluton was performed by determining U and Th contents in the main rock types cropping out over the entire area and pertaining to the granitic complex, syenitic complex and monzonitic complex. In particular, syenitic rocks were largely used as building and ornamental materials (e.g. Sienite della Balma). All the samples are fresh and do not present joints or fractures filled with U minerals. In the crushed samples the activity of uranium varies from 346 to 764 Bq/kg. Concentration of thorium varies from 202 to 478 Bq/kg. For all the analysed rocks uranium activity is higher than thorium one. The lowest value of radioactive concentration is referred to rocks of the granitic complex. The most active rocks are syenites. The data confirm the high activities of Valle del Cervo rock types, strongly connected with high K content of the source magma (geochemical signature); on the contrary, the activity seems to be not related to the location of the samples. © 2006 Oxford University Press.
Articolo in rivista - Articolo scientifico
gamma spectroscopy, Valle del Cervo, U, Th
English
2006
118
3
337
344
none
Sesana, L., Fumagalli, M., Carnevale, M., Polla, G., Facchini, U., Colombo, A., et al. (2006). Natural radionuclides in the rocks of the Valle del Cervo pluton in Piedmont. RADIATION PROTECTION DOSIMETRY, 118(3), 337-344 [10.1093/rpd/nci347].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/2649
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