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Christos Kanellopoulos   Dr.  Institute, Department or Faculty Head 
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Christos Kanellopoulos published an article in July 2018.
Top co-authors See all
Panagiotis Voudouris

66 shared publications

Department of Mineralogy-Petrology, National and Kapodistrian University of Athens, 15784 Athens, Greece

Robert Moritz

27 shared publications

Department of Mineralogy, University of Geneva, CH-1205 Geneva, Switzerland

Charalampos Vasilatos

26 shared publications

National and Kapodistrian University of Athens

Massimo Chiaradia

26 shared publications

Department of Earth Sciences, University of Geneva

Panagiotis Pomonis

10 shared publications

Department of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 157 84 Athens, Greece

6
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9
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Publication Record
Distribution of Articles published per year 
(2012 - 2018)
Total number of journals
published in
 
4
 
Publications
Article 0 Reads 0 Citations A New Occurrence of Terrestrial Native Iron in the Earth’s Surface: The Ilia Thermogenic Travertine Case, Northwestern E... Christos Kanellopoulos, Eugenia Valsami-Jones, Panagiotis Vo... Published: 31 July 2018
Geosciences, doi: 10.3390/geosciences8080287
DOI See at publisher website ABS Show/hide abstract
Native iron has been identified in an active thermogenic travertine deposit, located at Ilia area (Euboea Island, Greece). The deposit is forming around a hot spring, which is part of a large active metallogenetic hydrothermal system depositing ore-bearing travertines. The native iron occurs in two shapes: nodules with diameter 0.4 and 0.45 cm, and angular grains with length up to tens of μm. The travertine laminae around the spherical/ovoid nodules grow smoothly, and the angular grains are trapped inside the pores of the travertine. Their mineral-chemistry is ultra-pure, containing, other than Fe, only Mn (0.34–0.38 wt.%) and Ni (≤0.05 wt.%). After evaluating all the possible environments where native iron has been reported up until today and taking under consideration all the available data concerning the study area, we propose two possible scenarios: (i) Ilia’s native iron has a magmatic/hydrothermal origin i.e., it is a deep product near the magmatic chamber or a peripheral cooling igneous body that was transferred during the early stages of the geothermal field evolution, from high temperature, reduced gas-rich fluids and deposited along with other metals in permeable structural zones, at shallow levels. Later on, it was remobilized and mechanically transferred and precipitated at the Ilia’s thermogenic travertine by the active lower temperatures geothermal fluids; (ii) the native iron at Ilia is remobilized from deep seated ophiolitic rocks, originated initially from reduced fluids during serpentinization processes; however, its mechanical transport seems less probable. The native iron mineral-chemistry, morphology and the presence of the other mineral phases in the same thermogenic travertine support both hypotheses.
Article 0 Reads 4 Citations A new terrestrial active mineralizing hydrothermal system associated with ore-bearing travertines in Greece (northern Eu... Christos Kanellopoulos, Panagiotis Mitropoulos, Eugenia Vals... Published: 01 August 2017
Journal of Geochemical Exploration, doi: 10.1016/j.gexplo.2017.05.003
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Article 0 Reads 2 Citations Ophiolitic Remnants from the Upper and Intermediate Structural Unit of the Attic-Cycladic Crystalline Belt (Aegean, Gree... Christina Stouraiti, Iakovos Pantziris, Charalampos Vasilato... Published: 21 March 2017
Geosciences, doi: 10.3390/geosciences7010014
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The ophiolitic rocks of the Attic-Cycladic crystalline belt are considered of key importance for understanding the Mesozoic tectonic evolution of the Aegean region. Unresolved questions concern their tectono-stratigraphic relationships across the region. The mode of occurrence of the Cycladic ophiolites varies, as they appear as: (a) dismembered blocks (olistoliths) within the supra-detachment units of Paros and Naxos; (b) mélange formations in the upper structural unit of western Samos and Skyros; and (c) meta-ophiolitic mélange in the Cycladic Blueschist Unit (CBU) from central Samos. The trace element geochemistry and Pb-Sr-Nd isotopes of the mafic ophiolitic rocks indicate four geochemical groups: (a) the upper unit metabasites from Paros and western Samos (Kallithea) display an evolved basaltic composition (Mg# 40.2–59.6), with low Zr/Nb values (5–16) and high Ce/Y values (1.3 to 2.6) compared to MORB, indicating island-arc tholeiite affinities; (b) Naxos upper unit metabasalts show spider diagrams patterns indicating ocean island basalt (OIB-type) affinities; (c) Central Samos metagabbros (CBU) are primitive rocks with Back-Arc Basin basalt affinities; (d) the Skyros metadolerites and Tinos (Mt Tsiknias) and S. Evia (CBU) metagabbros, cluster as a separate geochemical group; they exhibit high MgO values (>10 wt %), very low TiO2 values (0.1–0.2 wt %), Y and Yb, and depleted trace element N-MORB normalized patterns, similar to volcanic rocks formed in modern oceanic fore-arc settings, such as boninites. A combination of the Pb- and Sr-isotopic compositions of Cycladic metabasites indicate that the Pb and Sr incorporated in the Cycladic ophiolites correspond to mixtures of magmatic fluids with seawater (206Pb/204Pb = 18.51–18.80; 207Pb/204Pb = 15.59–15.7; 208Pb/204Pb = 39.03–39.80 and initial 87Sr/86Sr80 = 0.705–0.707). Furthermore, peridotite relicts from Samos, Paros, and Naxos—irrespective of the structural unit—display chemical affinities of ocean floor peridotites formed in a supra-subduction zone. The characteristics of harzburgite relicts in Cycladic serpentinites and Skyros indicate a highly residual nature of the mantle source. Geochemical data from this study shed further light on the complex structure of the oceanic lithosphere from which the Cycladic ophiolites originated.
Article 0 Reads 4 Citations Geochemistry of serpentine agricultural soil and associated groundwater chemistry and vegetation in the area of Atalanti... Christos Kanellopoulos, Ariadne Argyraki, Panagiotis Mitropo... Published: 01 November 2015
Journal of Geochemical Exploration, doi: 10.1016/j.gexplo.2015.06.013
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Article 4 Reads 1 Citation Thermogenic travertine deposits in Thermopylae hot springs (Greece) in association with cyanobacterial microflora Christos Kanellopoulos, Vasiliki Lamprinou, Panagiotis Mitro... Published: 02 July 2015
Carbonates and Evaporites, doi: 10.1007/s13146-015-0255-4
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Article 0 Reads 1 Citation Distribution, lithotypes and mineralogical study of newly formed thermogenic travertines in Northern Euboea and Eastern ... Christos Kanellopoulos Published: 01 January 2012
Open Geosciences, doi: 10.2478/s13533-012-0105-z
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