In Depth Analysis of a Sediment Core from North
Aegean Sea

Mitsios, Iason; Pappa, Filothei; Patiris, Dionisis; Rouni, Panagiota; Anagnostakis, Marios; Tsabaris, Christos

dc.contributor.author	Mitsios, Iason
dc.contributor.author	Pappa, Filothei
dc.contributor.author	Patiris, Dionisis
dc.contributor.author	Rouni, Panagiota
dc.contributor.author	Anagnostakis, Marios
dc.contributor.author	Tsabaris, Christos
dc.date.accessioned	2023-09-26T12:31:54Z
dc.date.available	2023-09-26T12:31:54Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/58098
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.25795
dc.rights	Default License
dc.subject	sediment core radionuclide distribution	en
dc.title	In Depth Analysis of a Sediment Core from North Aegean Sea	en
heal.type	conferenceItem
heal.language	en
heal.access	campus
heal.recordProvider	ntua	el
heal.publicationDate	2022-10-17
heal.bibliographicCitation	Mitsios, I., Pappa, F., Patiris, D., Rouni, P., Anagnostakis, M., & Tsabaris, C. (2022). In Depth Analysis of a Sediment Core from North Aegean Sea. HNPS Advances in Nuclear Physics, 28, 215–218. https://doi.org/10.12681/hnps.3608	en
heal.abstract	In this work a thorough analysis of the vertical distribution of natural and artificial radionuclides and trace elements in a sediment core sample was conducted. A sediment core of 39 cm length was grabbed from the deep-sea trench (1540 m depth) southern of Samothrace Island, Aegean Sea. The sediment core was then treated at the Hellenic Centre for Marine Research, separated at 1cm increment samples, ranging from 0cm to 39 cm, dried, and milled. A first analysis of the samples was also conducted at HCMR using gamma spectroscopic techniques. Further spectroscopic analysis continued at Nuclear Engineering Department of the National Technical University of Athens (NED-NTUA) using an Extended Range Germanium Detector. The following radionuclides were determined 210Pb, 234Th, 226Ra, 228Ra, 228Th, 137Cs and 40K. Additionally, Instrumental Neutron Activation Analysis was used and the following major and trace elements were identified and quantified: Al, V, La, Sc, Mn, As, Ga, Cr, Zn, Co, Rb, Fe, K, Na and Ce. Based on the analysis of each sample, the vertical distribution of most natural radionuclides showed no significant variation. The vertical distribution of anthropogenic 137Cs was very low and almost constant. Unsupported 210Pb activity was about six times higher than 226Ra, indicating high radon fluxes. Furthermore, neutron activation analysis results indicate that almost all elements are within the expected range based on literature, while K and Na show a slightly increased concentration. For the area, these findings indicate steady and calm sedimentation processes.	en
heal.fullTextAvailability	false
heal.conferenceName	HNPS 2021	en
heal.conferenceItemType	poster
dc.identifier.doi	https://doi.org/10.12681/hnps.3608	el