Geological factors influencing the concentration of trace elements in the Philippi peatland, eastern Macedonia, Greece

Christanis, Kimon; Georgakopoulos, Andreas; Fernández-Turiel, J. L.; Bouzinos, A.

doi:10.1016/s0166-5162(98)00004-4

Cited by 56 publications

(40 citation statements)

References 14 publications

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“…A good example here is the Philippi mire in northeast Greece, which is regarded as the deepest contemporary mire in the world (Teichmüller 1968;Christanis 1998;Volkov 2003). The peat was accumulated between 0.7 Ma ago and the middle of the twentieth century, when the mires were drained for agricultural use (Christanis 1998).…”

Section: Paradoxmentioning

confidence: 99%

“…The peat was accumulated between 0.7 Ma ago and the middle of the twentieth century, when the mires were drained for agricultural use (Christanis 1998). The mire is 190-200-m deep; however, its upper ~70 m is still in the stage of peat while the lower part of the sedimentary sequence has already passed into lignite (Teichmüller 1968;Volkov 2003).…”

Section: Paradoxmentioning

confidence: 99%

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Compaction of lignite: a review of methods and results

Widera¹

2015

Acta Geologica Polonica

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ABSTRACT:Widera, M. 2015. Compation of lignite: a review of methods and results. Acta Geologica Polonica, 65 (3), 367-378. Warszawa.The published peat:coal compaction ratios range from 1.1:1 to 60:1 and from 1.1:1 to 11:1 for lignites. These probably represent realistic end-member values for the degree of compaction during the transformation of peat into lignite and then to coal. Hence, in many cases, the obtained values of the compaction ratio are under-or overestimated with reference to the entire coal seam.This study focuses on the changes of thickness between a peat bed and the resulting lignite seam. The fundamental question is how many times the thickness of the peat bed, prior to covering the mire by the overburden, was greater than the present-day thickness of the lignite seam.The majority of methods reported in this paper cannot be used directly to quantify the amount of compaction of the lignite seam. In this context, the only category of methods which allow a direct estimation of the peat:lignite compaction ratio are the so-called stratigraphic methods. Therefore, based on comparison of the initial peat bed thickness with lignite seam thickness, the most accurate peat:lignite compaction ratio ranges from 2:1 to 4:1.

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Section: Paradoxmentioning

confidence: 99%

Section: Paradoxmentioning

confidence: 99%

Compaction of lignite: a review of methods and results

Widera¹

2015

Acta Geologica Polonica

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“…Previous environmental studies have been carried out in the large region of Kavala Prefecture [27][28][29][30][31][32][33]. The geochemistry and metal concentrations of surface soils and sediments was mainly investigated in the immediate vicinity of Kavala City and its port [31][32][33].…”

Section: Introductionmentioning

confidence: 99%

“…The geochemistry and metal concentrations of surface soils and sediments was mainly investigated in the immediate vicinity of Kavala City and its port [31][32][33]. Metal content in waters and sediments of Palea Kavala River has also been studied [28][29][30], as well as the concentrations of trace elements in Philippi peatland [27]. The present study provides information about the metal content in sediments of the wider Kavala-Philippi area, with the sampling area extending further than the port and the city of Kavala.…”

Section: Introductionmentioning

confidence: 99%

Selected Metal Content and Binding Behaviour in Riverbed Sediments of the Kavala–Philippi Area (Northern Greece)

et al. 2018

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Abstract:The broader Philippi area (NE Macedonia, Northern Greece), which was chosen for the present study, is characterized by the presence of various metals. An approach to the correlation of selected parameters (grain-size distribution, Al 2 O 3 , CaO, Fe 2 O 3 , MnO, SiO 2 content, environmentally available concentrations of Cu and Zn) was carried out in samples collected downstream of Palea Kavala River and Kryoneri and Philippi streams. The abundance of Cu, Fe, Mn, and Zn in relation to four binding fractions (exchangeable, bound to carbonates, Fe-Mn oxides, organic matter complexes) was also investigated. The enrichment of the studied metals was determined by evaluating the enrichment factor (EF) and geo-accumulation index (I geo ). Considering the results, Si was the most abundant major element oxide in sediments, followed by Al, Ca, Fe, and Mn. The sediments are dominated by sand and reveal minor Cu and Fe enrichment and moderate Mn and Zn enrichment. Statistical analyses revealed a significant correlation between Cu, Fe, Mn, and Zn, suggesting their common sources. They probably originate naturally, since the weathering of metal assemblages occurring in the broader Philippi area, comprising minerals such as chalcopyrite, pyrite, goethite, pyrolusite and sphalerite, may contribute to the concentrations of these elements in the sediments.

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“…The plant is the original material of coal, the content and the Jurassic coal plant into the modern plant close to Be, Cd, Hg, Mo, Tl, Co, Ag, As, Ba, Cr, Cu, Ga, Ni, Pb, V, Na, B, Mn, Sr, Ti, Zn, Fe Mg, S, K, P, Al and other 27 kinds of trace elements distribution, interpretation of back stepping is to ascertain the coal forming plants for one way of trace element contribution rate problem [7][8][9][10]; this paper studies the Qinba Mountain Jurassic relict plant and related molecules on the law.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Trace Elements in Jurassic Relict Plant in Qinba Mountain Area

Du¹,

Yang²,

Fan³

et al. 2017

dtetr

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In order to explore the source of trace elements in Jurassic coal-forming plants in northern China, Larix chinensis, Larix principis-rupprechtii, Podocarpus macrophyllus, Pinusarmandii. And other trace elements in modern plants and soil samples were studied by ICP-AES. The results showed that the soils had strong enrichment of Ag, As, Mo, Cd and Hg, and had weak enrichment of Cr, Mn, Zn and Pb, and the absorption of the same elements by different plants Ability to differ significantly. 1

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Geological factors influencing the concentration of trace elements in the Philippi peatland, eastern Macedonia, Greece

Cited by 56 publications

References 14 publications

Compaction of lignite: a review of methods and results

Compaction of lignite: a review of methods and results

Selected Metal Content and Binding Behaviour in Riverbed Sediments of the Kavala–Philippi Area (Northern Greece)

Characteristics of Trace Elements in Jurassic Relict Plant in Qinba Mountain Area

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