干旱区生态环境知识资源中心(Arid): Application of Non-Destructive Techniques on a Varve Sediment Record from Vouliagmeni Coastal Lake, Eastern Gulf of Corinth, Greece

Arid

DOI	10.3390/app10228273
	Application of Non-Destructive Techniques on a Varve Sediment Record from Vouliagmeni Coastal Lake, Eastern Gulf of Corinth, Greece
	Emmanouilidis, Alexandros; Unkel, Ingmar; Seguin, Joana; Keklikoglou, Kleoniki; Gianni, Eleni; Avramidis, Pavlos
通讯作者	Avramidis, P
来源期刊	APPLIED SCIENCES-BASEL
EISSN	2076-3417
出版年	2020
卷号	10 期号:22
英文摘要	During the last few decades, X-ray attenuation systems have been established as standard techniques in geosciences and as excellent scientific tools for the analysis of sedimentary facies and structures. In the present study, we use two non-destructive and high-resolution systems (computed tomography, X-ray fluorescence) to address all sedimentological facies and structural characteristics on a 6 m long, partly laminated sediment record, from Vouliagmeni lake, located at the eastern part of the Corinth Gulf, Greece. Vouliagmeni lake is the deepest coastal lake in Greece, and its location is of great importance since it is located in one of the most tectonically active regions in the world. The chronological framework of the retrieved sediment sequence spans the last 12,000 years, with alternations of laminated and non-laminated sections. The annual accumulation of the laminated sequences was determined through the radionuclide concentration of 14 samples. Scanning tomography was performed with a medical CT scanner and a mu CT scanner, aiming to compare the potentials and variations of both methods. Lamination boundaries, event layers (turbidites) and sediment deformations were distinguished through processing the extracted 3D rendered volumes, after applying ranges depending on Hounsfield (HU) values. Microscopic analysis revealed three main layer types in the varve sequences that were examined, attributing to summer/spring, autumn and winter deposits. Statistical analysis of the elemental composition, magnetic susceptibility (MS) measurements and HU values revealed three clusters/facies, reflecting climatic and in-lake hydrological changes. Cluster A emulates sedimentation during arid conditions, while Cluster B reflects humid conditions with increased precipitation and erosion. Cluster C represents sequences with homogenous Ca-rich sediment. Our proposed workflow highlights the possible correlation between the non-destructive variables that were measured, but also the variations and applications of each method and software used during this study.
英文关键词	computed tomography XRF scanning laminations Holocene sedimentological facies Hounsfield values
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000594193800001
WOS关键词	HYDROGEN ISOTOPE COMPOSITION ; ENVIRONMENTAL-CHANGE ; SEA-LEVEL ; CLIMATE VARIABILITY ; HOLOCENE CLIMATE ; WESTERN GREECE ; ANCIENT HARBOR ; SW PELOPONNESE ; SEISMIC HAZARD ; GIALOVA LAGOON
WOS类目	Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327764
作者单位	[Emmanouilidis, Alexandros; Gianni, Eleni; Avramidis, Pavlos] Univ Patras, Dept Geol, Rion 26504, Greece; [Unkel, Ingmar; Seguin, Joana] Univ Kiel, Inst Ecosyst Res, D-24118 Kiel, Germany; [Keklikoglou, Kleoniki] Hellen Ctr Marine Res, Inst Marine Biol Biotechnol & Aquaculture, Iraklion 71500, Greece; [Keklikoglou, Kleoniki] Univ Crete, Dept Biol, Iraklion 71500, Greece
推荐引用方式 GB/T 7714	Emmanouilidis, Alexandros,Unkel, Ingmar,Seguin, Joana,et al. Application of Non-Destructive Techniques on a Varve Sediment Record from Vouliagmeni Coastal Lake, Eastern Gulf of Corinth, Greece[J],2020,10(22).
APA	Emmanouilidis, Alexandros,Unkel, Ingmar,Seguin, Joana,Keklikoglou, Kleoniki,Gianni, Eleni,&Avramidis, Pavlos.(2020).Application of Non-Destructive Techniques on a Varve Sediment Record from Vouliagmeni Coastal Lake, Eastern Gulf of Corinth, Greece.APPLIED SCIENCES-BASEL,10(22).
MLA	Emmanouilidis, Alexandros,et al."Application of Non-Destructive Techniques on a Varve Sediment Record from Vouliagmeni Coastal Lake, Eastern Gulf of Corinth, Greece".APPLIED SCIENCES-BASEL 10.22(2020).