 | | 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 |  | 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 EÕolution des Milieux...oxides of the isostructural series cryptomelane–hollandite–coronadite plus hydrohetaerolite characterized...Ore Geology ReÕiews 18 (2001) 181–209 tant in Greece ŽFytikas and Marinelli, 1976.. The strong tensional |  | | Journal (article/letter/editorial) | | The oxides are composed of varying amounts of hollandite, cryptomelane, todorkite, romanèchite, pyrolusite...consist primarily of cryptomelane-hollandite (+ undifferentiated hollandite-group phases), pyrolusite, and...which has a higher abundance of pyrolusite over hollandite group minerals in comparison to the Boléo district...cryptomelane, Gt = goethite, Hem = hematite, Hol = hollandite, Mgt = magnetite, Mnt = montmorillonite, Pl =...romanèchite, Tod = todorokite, UHG = undifferentiated hollandite-group phase; X = dominant or major phase, o = |  | | Journal (article/letter/editorial) | | model で あ る.α‑MnO2と of todorokite with よ ば れ るhollandite long spacing. cryptomelane etc. の 構 造 は...3×2と よ う に 表 示 す れ ばpsilomelaneの 表 示 で き る.hollandite, やcoronaditeの 2×2の cryptomelane, manjiroite...はCalifbrniaのFrancis‑ (Bonatti et a1. (Panagos,1984)等 1976) Greeceの のマンガンに 富 む堆 積 物 や鉱 床 の 形 成 場 の 解 釈 に貴 重 な デ...Am., Bull., 87, 83-94. 16) Panagos A. G., and Varnavas S. P. (1984) : On the 17) 18) 物 学 雑 誌,16,301‑308...genesis of some manganese deposits from Eastern Greece. In Syngenesis and epigenesis in theformationof |  | | Journal (article/letter/editorial) | | of Um Bogma is situated in southwest Sinai, 20 km east of the Gulf of Suez and 30 km southeast of Abu Zeniema...Geologic Setting The Um Bogma area is located to the east of the Gulf of Suez. This area is dominated by north-northwest-...Generally, thickness decreases to the southeast and east. Ferromanganese ore lenses associated with shaly...1972; Sillitoe, 1975; Zantop, 1978, 1981; and Varnavas et al., 1988). Recently, Nicholson (1992) postulated...1972). Also, the diagram shows ore fields of the East Pacific Rise (EPR) metalliferous sediments (after |  | | Journal (article/letter/editorial) | | Supergene:chalcophanite, coronadire,crednerite,&MnO•, groutite,hollandite, lithiophorite, manganite, nsutite,quenselite...1983, Manganese oxidemineralogy in anexhalative Varnavas, S.P., Papaioannau, J., andCatani,J., 1988,A hydrothermal...neseprecipitatein the Taviharjaesker, Kuusamo,north-east Jour.Geochem.Explor.,v. 18, p. 87-110. Finland:Geol |  | | Report (volume) | | (08) 379-0444 Fax (08) 379-4634) India Affiliated East-West Press PVT Ltd G-1/16 Ansari Road New Delhi...mineralization of Kato Nevrokopi, Macedonia, northern Greece: controls on formation of the Mn 4+ oxides MIURA...Nevrokiopi manganese deposites, Macedonia, northern Greece GAMBLIN, S. D. & URCH, D. S. The determination...enrichments. Cenozoic manganese mineralization in Greece is described by Michailidis e t al. who elucidate...research. An unusually zinc-rich rancieite from Greece is described by Nimfopoulous et al. The mineral |  | | Journal (article/letter/editorial) | | Hinsdalite Hocartite Hochschildite Högbomite Hollandite Hollingworthite Holmquistite H.G. Dill / Earth-Science... Sr-rich apatite, REE-rich phosphates , K–Ba hollandite group minerals, Nb-bearing rutile and Mn-bearing...Kempirsai, Kazakhstan, Troodos, Cyprus, Chalkidiki, Greece) are made up of numerous pod- to pencil-like massive...Venezuela, Cerro Matoso, Colombia, Aghios Ioannis, Greece, and Guanajiibo, Puerto Rico. All of these supergene... 0.73% Co and 5% Mn formed. At Aghios Ioannis, Greece, asbolane formed close to the calcareous footwall | | | Journal (article/letter/editorial) | | Hinsdalite Hocartite Hochschildite Högbomite Hollandite Hollingworthite Holmquistite H.G. Dill / Earth-Science... Sr-rich apatite, REE-rich phosphates , K–Ba hollandite group minerals, Nb-bearing rutile and Mn-bearing...Kempirsai, Kazakhstan, Troodos, Cyprus, Chalkidiki, Greece) are made up of numerous pod- to pencil-like massive...Venezuela, Cerro Matoso, Colombia, Aghios Ioannis, Greece, and Guanajiibo, Puerto Rico. All of these supergene... 0.73% Co and 5% Mn formed. At Aghios Ioannis, Greece, asbolane formed close to the calcareous footwall |  | | Report (issue) | | Occidental is ~55 km thick, but thins to ~40 km to the east. The anomalous thickness in the core of the Sierra...T M V B México W E Boundary between area with east or west tilting of rocks Limit of area affected...the Mesa Central (Mexican Central Plateau) to the east (Fig. 1). The opening of the Gulf of California...that cross the Sierra Madre Occidental from west to east. The regional geology of these sectors is illustrated...in the Sierra Madre Occidental province. To the east, granitic rocks of Grenvillian age (ca. 1.0 Ga) |  | | Journal (article/letter/editorial) | | jbishop@seti.org), 2 Michigan State University (East Lansing, MI); 3Smithsonian Institution (Washington...Planetology, University of Hawai‘i at Manoa, 1680 East-West Rd, POST 602, Honolulu HI 96822. jbradley@higp...Geophysics, University of Hawai‘i at Mānoa, 1680 East-West Road, Honolulu, HI 96822, 2Hawai‘i Institute...Planetology, University of Hawai‘i at Mānoa, 1680 East-West Road, Honolulu, HI 96822, 3Department of Physics...grid of analytical points extends to the south and east of the reference point. Once points are chosen, |
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