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Formation and Growth of Smectites in Bentonites: A Case Study from Kimolos Island, Aegean, Greece
Bentonite Crystal Growth Montmorillonite Mordenite Open System Particle-Size Distribution Precursor Random Ripening
2011/12/5
Abstract: The low-temperature alteration of a rhyolitic rock from Kimolos Island, Aegean, Greece, yielded an alteration profile characterized by gradual transition from fresh glass to bentonite contai...
Comparative Study of the Mobility of Major and Trace Elements During Alteration of an Andesite and a Rhyolite to Bentonite, in the Islands of Milos and Kimolos, Aegean, Greece
Alteration Andesite Bentonite Element Mobilization Mordenite Phosphates REE Fractionation Residual Enrichment Rhyolite Smectite Water:Rock Ratio
2011/12/8
Abstract: Progressive alteration by seawater of an andesite in the Aegean Island of Milos and an ignimbrite in the Aegean Island of Kimolos, Greece, formed bentonites with or without zeolites. Both pr...
The Genesis of a Mordenite Deposit by Hydrothermal Alteration of Pyroclastics on Polyegos Island, Greece
Clinoptilolite Greece Heulandite Hydrothermal Alteration Mordenite Polyegos Pyroclastics Rhyolite Zeolites
2011/12/22
Abstract: The vitric component of the silicic pyroclastic flows and surge deposits (Prassa ignimbrite unit), from the northwestern exposures of the pyroclastics formation of Polyegos Island, South Aeg...
Solid solution between piemontite and androsite-(La), a new mineral of the epidote group from Andros Island, Greece
Solid solution piemontite androsite-(La epidote group Andros Island
2012/4/6
Anew member ofthe epidote group, androsite-(La), wasfound atAndrosIsland, Cyclades, Greece, as an accessory constituent of metamorphic Mn-rich rocks. Associated minerals are rhodochrosite, braunite, r...
Origin of the Bentonite Deposits of Eastern Milos, Aegean, Greece: Geological, Mineralogical and Geochemical Evidence
Authigenic K-feldspar Bentonite Electron microscopy Hydrothermal alteration Infrared spectroscopy Low temperature alteration Smectite X-ray diffraction X-ray fluorescence Zeolites
2011/12/1
Abstract: The Lower Pleistocene bentonite deposits of Eastern Milos, Greece have been formed at the expense of volcaniclastic rocks under submarine conditions. Systematic variation of the major chemic...
Mechanism of Illitization of Bentonites in the Geothermal Field of Milos Island Greece: Evidence Based on Mineralogy, Chemistry, Particle Thickness and Morphology
Bentonite Hydrothermal alteration Illitization Illite/smectite Kaolinite Neoformation Ostwald ripening Solid state transformation
2011/12/28
Hydrothermal alteration has caused illitization along a 40m vertical profile in the Tsantilis bentonite deposit, Eastern Milos, Greece which consists principally of a Wyoming-type montmorillonite and ...
K-Rich Mordenite from Late Miocene Rhyolitic Tuffs, Island of Samos, Greece
Hydrothermal alteration Mordenite Potassium Rhyolitic tuff Volcanic ash X-ray powder diffraction Zeolite
2011/12/31
Mordenite occurs in hydrothermally altered rhyolitic volcanic rocks at the margin of a Late Miocene lake basin on the island of Samos, Greece. The mordenite was identified by its X-ray powder diffract...
Zeolites in Pre-Caldera Pyroclastic Rocks of the Santorini Volcano, Aegean Sea, Greece
Clinoptilolite Diagenesis Mordenite Pyroclastic Tuff Zeolite
2012/1/6
The vitric matrix of pre-caldera acid tuff and tuff breccia of the Santorini volcano, Aegean Sea, Greece has been generally replaced by one or more of the following authigenic minerals: K-rich and (K,...
Magnetic Behavior of Some Biotite Samples from West Thrace, N.E. Greece
Magnetic Behavior Biotite Samples West Thrace
2012/2/15
The magnetic behavior of some biotite samples, from volcanic rocks of W. Thrace area, N.E. Greece, was studied in the temperature range from 85 to 270°K and compared with the chemical composition. The...