Papastefanou, C. and Manolopoulou, M. and Stoulos, S. and Ioannidou, A. and Gerasopoulos, E. (2000) Characterization of a karstic system by examining the occurrence of radioactive nuclides and trace elements. Il nuovo cimento C, 23 C (4). pp. 411-422. ISSN 1826-9885
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Abstract
Naturally occurring primordial radionuclides, particularly those of the uranium-radium series, in a karstic system like that of Maras in the Drama area, Northern Greece, were examined using gamma-ray spectrometry. Radon in karstic waters was monitored by alpha scintillation detectors (Lucas cells), Clipperton-type detectors (silicon diodes) and solid state nuclear track-etch detectors (LR-115). Trace elements were determined using the instrumental nuclear activation analysis (INAA) method. Although the specific activities of the natural radionuclides in bedrocks (marbles) were at the level of the earth's crust average abundance, they were enhanced in the clay materials (soil intrusions), soils and sediments of the karstic system. Radon in karstic waters increased in the spring and summer periods (water crisis period) and decreased in the fall and winter periods. Of the major elements, the occurrence of calcium, iron and potassium, and of the minor elements, the occurrence of strontium and zinc in significant concentrations characterized the karstic system.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Groundwater; Isotopic composition/chemistry; Trace elements; Major element composition |
| Subjects: | 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia > 551.3 Processi superficiali ed esogeni e loro agenti (Classificare qui la Sedimentologia come studio dei processi superficiali) (Classificare le opere d'insieme sulla Sedimentologia in 552.5) > 551.35 Azione geologica dell'acqua (azione delle acque superficiali e sotterranee, delle precipitazioni) |
| Depositing User: | Marina Spanti |
| Date Deposited: | 09 Mar 2020 15:25 |
| Last Modified: | 09 Mar 2020 15:25 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/13931 |
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