 | | Journal (article/letter/editorial) | | Insights from Fe-Mn Mineralization in the Aegean Sea (Greece) Charalampos Vasilatos * , Evdokia E. Kampouroglou...Kapodistrian University of Athens, 15 784 Athens, Greece * Correspondence: vasilatos@geol.uoa.gr Citation:...mineralization from the Aegean region [Attica (Grammatiko, Legrena, and Varnavas), Evia and Milos islands], aiming...for their deposition. A salient feature of the Varnavas and Milos Mn-Fe ores is the presence of sodium...100) recorded in the Neogene sedimentary basins of Attica, related to the Grammatiko Fe-Mn mineralization |  | | Journal (article/letter/editorial) | | University of Crete, GR-70013 Heraklion, Crete, Greece; chem1723@edu.chemistry.uoc.gr (G.D.E.); chem1722@edu...University of Athens, Iera Odos 75, 11855 Athens, Greece; myrtotsioubri@aua.gr Department of Geology and...Geoenvironment, University of Athens, 15784 Athens, Greece Correspondence: econom@geol.uoa.gr Received: 29...deficiency can cause various health risks. Since Greece is among the European countries where people have...coming from the Neogene basins of Greece (Assopos-Thiva and Attica), aiming to define potential Se-source/es |  | Tremba, E.L., Faure, G., Katsikatsos, G.C., Summerson, C.H. (1975) Strontium-isotope composition in the Tethys Sea, Euboea, Greece. Chemical Geology, 16 (2) 109-120 doi:10.1016/0009-2541(75)90003-0 | Journal (article/letter/editorial) | | STRONTIUM-ISOTOPE COMPOSITION IN THE TETHYS SEA, EUBOEA, GREECE* E.L. T R E M B A ' , G. F A U R E ' , G.C. KATSIKATSOS2...Geological and Mining Research (NIGMR), Athens (Greece) (Received January 14, 1975; revised and accepted...Strontium-isotope composition in the Tethys Sea, Euboea, Greece. Chem. Geol., 16: 109--120. We have determined...Research (NIGMR), 34, Veranzerou Str., Athens 102, Greece. 110 in response to changes in the kinds of...limestones and marbles from the island of Euboea, Greece (Fig.l). The objective of this study is to determine |  | | Journal (article/letter/editorial) | | mineralization on western Milos Island, Aegean Volcanic Arc, Greece: Mineralogical, geological and geochemical constraints...14564, Greece Department of Mineralogy-Petrology, University of Athens, Athens, 15784, Greece Department...barite, adularia, sericite and, to a lesser extent, calcite, which are typical of intermediate-sulïŹdation epithermal...intrusionrelated, and epithermal mineralization in Lavrion (Attica), and Evia, Sifnos, Mykonos, Tinos, and Kythnos...intense active geothermal activity (Cronan and Varnavas, 1999; Dando et al., 1995; Fytikas, 1989; Fytikas |  | Economou-Eliopoulos, Maria, Megremi, Ifigeneia, Atsarou, Cathy, Theodoratou, Christina, Vasilatos, Charalambos (2013) Spatial Evolution of the Chromium Contamination in Soils from the Assopos to Thiva Basin and C. Evia (Greece) and Potential Source(s): Anthropogenic versus Natural Processes. Geosciences, 3 (2) 140-158 doi:10.3390/geosciences3020140 | Journal (article/letter/editorial) | | Soils from the Assopos to Thiva Basin and C. Evia (Greece) and Potential Source(s): Anthropogenic versus...University of Athens, Panepistimiopolis, Athens 15784, Greece; E-Mails: megremi@geol.uoa.gr (I.M.); cathyatsarou@gmail...Keywords: contamination; Cr(VI); soil; water; plant; Greece Geosciences 2013, 3 141 1. Introduction Chromium...Department of Geology and Geoenvironmemt, (NKUA), Greece, Cu Ka radiation at 40 kV, 40 nA, 0.020° step size...Energy Dispersive Spectroscopy (EDS) analysis, NKUA, Greece. Microprobe analyses and SEM images using a JEOL |  | | Journal (article/letter/editorial) | | METALLIFEROUS SEDIMENTS FROM THE OPHIOLITES OF ERMIONI, GREECE; A N A L O G U E TO RECENT MID-OCEAN RIDGE F E...DEPOSITS S.P. VARNAVAS and A.G. PANAGOS Department of Geology, University of Patras, Patras (Greece) National...Athens (Greece) (Received August 5, 1982; revised and accepted February 28, 1983) ABSTRACT Varnavas, S.P...metalliferous sediments from the ophiolites o f Ermioni, Greece; analogue to Recent mid-ocean ridge ferromanganese...of the Fe-rich, Mn-poor sediments is hematite; calcite and smectites are present in minor amounts. It |  | | Journal (article/letter/editorial) | | Mesozpic Othris and Pindos ophiolites, mainlaritt Greece A . t t . F . R o b c r t s o n " a n d S.P. Varnaw...D~Tarl#nent Of (;eology, University Of Patra.s, Patras, Greece ( Received Novemhcr 18. 191,q: revised version...l S T I , ' . A ( ' I' Robertson, A.II.F. and Varnavas, S.P., 19ql3. The origin of hydrolhcinlal nlclall;fcrl...Olhris and Pind~)s ophi(Hiles, eenlral amd northern Greece. These ophiolites formed at an Early Mesozoic spreading...margins, mainly the Pelagonian microcontinent to the east. In the Oihris area, disseminated, massive and vein |  | | Journal (article/letter/editorial) | | Estimation of the geogenic carbon degassing of Greece Kyriaki Daskalopoulou a b c a,b a,c c , Sergio...Panepistimioupolis, Ano Ilissia, 15784, Athens, Greece Istituto Nazionale di GeoïŹsica e Vulcanologia,...C T Editorial handling by Dr D. WolïŹ-Boenisch Greece belongs to the most geodynamically active regions...of the natural output of these carbon gases in Greece. The best studied and most exhaling area is the...than 1.3 Ă 105 tons of CO2 per year. Continental Greece, on the contrary, is much less studied but may |  | | Journal (article/letter/editorial) | | Jurassic-Cretaceous rocks of the Pindos Basin, Peloponnese, Greece GEORGIA PE-PIPER 1 and DAVID J.W. PIPER 2 ...Jurassic-Cretaceous rocks of the Pindos Basin, Peioponnese, Greece. Sediment. Geol., 65: 127-137. The Jurassic-mid-Cretaceous...to the east of the Pindos zone, Varnavas and Panagos and their coworkers (Panagos and Varnavas, 1980;...1980; Varnavas and Panagos, 1984; Robertson et al., 1987) have studied cherts and manganese ores 129 overlying...plotting Al% against total clays and Ca% against calcite), but in ten cherty samples quartz appears to have |  | | Journal (article/letter/editorial) | | anhydrite, gypsum, barite), carbonates (e.g., calcite, aragonite), phosphates (hydroxylapatite), Fe and...Canet et al., 2005a,b). Finely laminated silica F calcite stromatolitic deposits form in some coastal and...the western coast of Mexico, finely laminated calcite deposits occur in depths of 10 m associated with...that take place at different depths. The paper by Varnavas and Cronan (2005) contains a review of chemical...hydrothermal carbonate deposits from Lake Tanganyika, East Africa. Geochim. Cosmochim. Acta 64, 287 â 298. |  | | Journal (article/letter/editorial) | | Athens-Sounio Avenue, Mavro Lithari, 19013 Anavyssos, Greece Received 21 May 2003; accepted 23 July 2004 Editorial...oxides and hydroxides were found as coatings on calcite. The coatings were enriched in Cr, Co, Ni, Zn,...second most important socio-economic region of Greece and lies between the most important areas of the...and Satsmadjis (1983), Voutsinou-Taliadouri and Varnavas (1995), Anagnostou et al. (1997), and Zeri et...reported for this area by Voutsinou-Taliadouri and Varnavas (1995). Untreated domestic and industrial eïŹuents |  | | Journal (article/letter/editorial) | | of Ermioni, Argolis Peninsula, Ne Peloponnese, Greece Stavros Savvas Triantafyllidis 1, * 1 2 * Citation:...Athens, Greece Department of Materials Science, University of Patras, 26504 Rio Patras, Greece Correspondence:...two systems, the hydrothermal system migrated from east to west, and at the same time evolved from free...of Ermioni, Argolis Peninsula, Ne Peloponnese, Greece. Minerals 2023, 13, 474. https:// doi.org/10.3390/min13040474...Historical Background Despite the diverse metallogeny of Greece, only a very small number of VMS mineralizations |  | | Report (chapter) | | exemplified by Jurassic Mn-cherts from Southern Greece A. R O B E R T S O N 1 & P. D E G N A N 2 aDepartment...Jurassic Mn-cherts from a Tethyan area in Southern Greece. Manganese-oxide hydrothermal sediments are known...within sutured oceanic units in the Peloponnese, S Greece. The Mn enrichment there is interpreted as related...elsewhere in the Mesozoic Tethyan area , including N Greece, SW Turkey, Cyprus and Oman, and in other orogenic...metalliferous pelites and cherts; e.g. Cyclades, S Greece and Franciscan Complex, California. The record |  | | Journal (article/letter/editorial) | | Entrance, Olympic Village, GR-13677, Acharnai, Greece Section of Economic Geology and Geochemistry, Department...GR-15784 Athens, Greece GMMSA LARCO, 81â83 KiïŹsias Ave. Maroussi GR 15124, Athens, Greece d Golightly Geoscience...Peninsula Gordes Arsenic Ni-laterites Goethite Greece Turkey a b s t r a c t Ironânickel-laterite deposits...in the Aghios Ioannis deposit, Lokris, Central Greece As varies significantly and attains values up to...in the Gordes deposit, whereas, in co-existing calcite As was not detectable. Goethite occurs in ïŹne-grained |  | | Journal (article/letter/editorial) | | . . . . . . . . . . . . . . . . . . . . . 101 Calcite dissolution kinetics: surface speciation and the.... . . . 119 Uptake of sodium and potassium by calcite M. Ishikawa and M. Ichikuni (Yokohama, Japan)....iron-rich muds at the Kameni Islands, Santorini, Greece K. BostrSm and L. Widenfalk (LuleS1, Sweden) ....of Ermioni, Greece; analogue to Recent mid-ocean ridge ferromanganese deposits S.P. Varnavas (Patras, Greece)...Greece) and A.G. Panagos (Athens, Greece) . . . . . . . . . . . 227 Distribution of selenium between |  | | Journal (article/letter/editorial) | | bed, such as braunite, caryopilite, Mn-bearing calcite, and rhodochrosite, are distributed in two distinctive...also known and are linked with fault zones (e.g., Varnavas et al., 1988; Usui et al., 1997; Hein et al.,...dissolved and their inner parts are replaced by calcite spar. Various bio- and lithoclasts occur within...section occur numerous oval zones filled with large calcite crystals (up to 0.7 mm in size), which embed hairy...were lined with Mn oxides and later filled with calcite. Inside the same voids are characteristic irregular |  | | Journal (article/letter/editorial) | | University of Athens, Panepistimiopolis, 15784 Athens, Greece Institute of Geology and Mineral Exploration, 70...70 Messoghion Street, GR-11527 Athens, Greece c AMTEL, 100 Collip Circle, UWO Research Park, London,...(Albania) to the Pindos and Othrys complexes southern (Greece), and host massive sulfide deposits of CuâZnâ(Pb)...Submicroscopic gold; Pindos; Mirdita; Balkan Peninsula; Greece; Albania â Corresponding author. Tel.: +30 210...the Pindos ophiolite complex (KondroâPerivoli), Greece, by Economou-Eliopoulos and Eliopoulos (1998) indicated |  | | Journal (article/letter/editorial) | | sediments (44989127 ppm, carbonate free), along the east-west-trending Marmara Trough but low in sediments...is associated with major tectonic features. The east-westtrending Marmara Trough (Fig. 1 ) which separates...pull-apart basins") that have maximum depths from west to east of 1152 m (Tekirda~ Basin), 1265 m (Central Marmara...(Shimkus and Esin, 1993) showed plagioclase (7-58%), calcite (5-37%), quartz (19-30%), illite (10-23%), potassium...are derived mainly from the calcareous (mainly calcite) remains of various species of pelecypods, gastropods |  | Voudouris, Panagiotis, Kati, Marianna, Magganas, Andreas, Keith, Manuel, Valsami-Jones, Eugenia, Haase, Karsten, Klemd, Reiner, Nestmeyer, Mark (2020) Arsenian Pyrite and Cinnabar from Active Submarine Nearshore Vents, Paleochori Bay, Milos Island, Greece. Minerals, 11 (1) 14 doi:10.3390/min11010014 | Journal (article/letter/editorial) | | Nearshore Vents, Paleochori Bay, Milos Island, Greece Panagiotis Voudouris 1, * , Marianna Kati 1 , Andreas...Nearshore Vents, Paleochori Bay, Milos Island, Greece. Minerals 2021, 11, 14. https://dx.doi.org/10.3390...Kapodistrian University of Athens, 15784 Athens, Greece; kati@geol.uoa.gr (M.K.); amagganas@geol.uoa.gr...venting at Paleochori Bay, nearshore Milos Island, Greece, discharges CO2 and H2 S rich vapors (e.g., low-Cl...Hg-bearing pyrite (Py I), associated with marcasite, calcite, and apatite, as well as (2) porous and/or massive |  | Ozturk, H., Hein, J. R., Hanilci, N. (2002) Genesis of the Dogankuzu and Mortas Bauxite Deposits, Taurides, Turkey: Separation of Al, Fe, and Mn and Implications for Passive Margin Metallogeny. Economic Geology, 97 (5) 1063-1077 doi:10.2113/gsecongeo.97.5.1063 | Journal (article/letter/editorial) | | ore, composed of böhmite, hematite, diaspore, calcite, and pyrite, is overlain by dark-brown, pisolitic...limestone samples that contain dolomite as well as calcite, the bulk sample was analyzed. Sulfur isotopes...C-1 Calcite Calcite Calcite Calcite, dolomite Calcite Calcite Calcite Calcite Calcite Calcite Calcite...Calcite Calcite Calcite Calcite Böhmite, hematite Böhmite, hematite Böhmite, hematite Böhmite, hematite Böhmite...Böhmite, pyrite Böhmite, diaspore Calcite Calcite Calcite Calcite Calcite Dolomite Dolomite â â â â â â |  | Panagiotaras, D., Papoulis, D., Kontopoulos, N., Avramidis, P. (2012) Geochemical processes and sedimentological characteristics of Holocene lagoon deposits, Alikes Lagoon, Zakynthos Island, western Greece. Geological Journal, 47 (4) 372-387 doi:10.1002/gj.1339 | Journal (article/letter/editorial) | | deposits, Alikes Lagoon, Zakynthos Island, western Greece D. PANAGIOTARAS1, D. PAPOULIS 2, N. KONTOPOULOS...Chemistry, Patras, Greece 2 University of Patras, Department of Geology, Patras, Greece 3 Technological...Laboratory of Geology for Aquatic Systems, Mesolonghi, Greece In this paper we present sedimentological, geochemical...coastal lagoon environment of the Ionia Sea, western Greece. The sedimentological properties and the geochemical...for Aquatic Systems, Nea Ktiria 30200 Mesolonghi, Greece. E-mail: pavramid@teimes.gr (Johnsson, 1993). |  | Price, Roy E., Savov, Ivan, Planer-Friedrich, Britta, BĂŒhring, Solveig I., Amend, Jan, Pichler, Thomas (2013) Processes influencing extreme As enrichment in shallow-sea hydrothermal fluids of Milos Island, Greece. Chemical Geology, 348. 15-26 doi:10.1016/j.chemgeo.2012.06.007 | Journal (article/letter/editorial) | | shallow-sea hydrothermal ïŹuids of Milos Island, Greece Roy E. Price a, b,â, Ivan Savov c, Britta Planer-Friedrich...Bays, off the southeast coast of Milos Island, Greece. Two distinct types of ïŹuids, both extremely As...transpierced by an abundance of secondary quartz and calcite veins rich in pyrite. It is possible that these...Chemical Geology 348 (2013) 15â26 a Aegean Sea Greece Turkey 38° Milos 37° km 0 50 24° 26° b ...enriched in potentially toxic elements, such as As (Varnavas and Cronan, 1988; Pichler et al., 1999; McCarthy |  | Liakopoulos, A, Glasby, G.P, Papavassiliou, C.T, Boulegue, J (2001) Nature and origin of the Vani manganese deposit, Milos, Greece: an overview. Ore Geology Reviews, 18 (3) 181-209 doi:10.1016/s0169-1368(01)00029-4 | Journal (article/letter/editorial) | | and origin of the Vani manganese deposit, Milos, Greece: an overview A. Liakopoulos a , G.P. Glasby b,)...Exploration (I.G.M.E.), 70 Messoghion St., 115 27 Athens, Greece Department of Economic Geology and Geochemistry...Athens, Panepistimioupoli, Zografou, Athens 157 84, Greece c Science de la Terre et EĂolution des Milieux...Ore Geology ReĂiews 18 (2001) 181â209 tant in Greece ĆœFytikas and Marinelli, 1976.. The strong tensional...calculated that the temperature of deposition of the calcite veins at Kontaros was 180 " 35 8C and that their |  | Senko, John M., Campbell, Brian S., Henriksen, James R., Elshahed, Mostafa S., Dewers, Thomas A., Krumholz, Lee R. (2004) Barite deposition resulting from phototrophic sulfide-oxidizing bacterial activity. Geochimica et Cosmochimica Acta, 68 (4) 773-780 doi:10.1016/j.gca.2003.07.008 | Journal (article/letter/editorial) | | microenvironments develop and barite then precipitates (Varnavas, 1987; Stroobants et al., 1991; Stamatakis and...Log(IAP) Log(K) Formula Anhydrite Aragonite Barite Calcite Celestite CH4(g) CO2(g) Dolomite FeS(ppt) Fluorite...2000). At this site, barite is present along with calcite as abundant cement within Pleistocene stream alluvium...aragonite, slightly supersaturated with respect to calcite, dolomite, and barite, and undersaturated with...(C) Scanning electron micrograph of nail-head calcite (arrow). Calcium is the major constituent in this |  | | Journal (issue) | | P. Coelho J.H. HULL 3, Navarino Bay, Greece S. P. Varnavas, A. G. Panagos, and G. Laios Application...In addition, there was a net flow of air from east to west entering the area at two locations. Air...hydrogeological provinces (Figure 1): I. The great East Plain, including mainly the Songliao Plain and Huang-Huai-Hai...intermediate zone between the semihumid zone in the east and the dry desert zone in the west. The Western...hydrogeological provinces of China. I. The Great East Plain: 1, Songliao Plain, 1, Huang- Huai-Hai Plain |
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