Kaolinization processes in the phyolitic rocks of Kefalos, Kos island, Aegean Sea, Greece

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Kaolinization processes in the phyolitic rocks of Kefalos, Kos island, Aegean Sea, Greece (EN)

PAPOULIS, D.
TSOLIS - KATAGAS, P.

info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article (EN)

2001-01-01


Kaolin occurrences in the South Kefalos peninsula, Kos island, Aegean sea, Greece, are products of hydrothermal alteration of rocks of rhyolitic composition. The chemical, mineralogical and textural characteristics of kaolin occurrences were investigated by X-Ray diffraction (XRD), Analytical scanning electron microscopy (SEM) and bulk rock chemical analyses. Attempts have been made to correlate the primary with secondary mineral assemblages and to establish the factors controlling the stepwise character of the transition from the fresh rhyolitic to kaolinized rocks. The kaolinization processes follows two main alteration pathways: I) Kfeldspar —» Mixed-layer kaolinite-smectite —» kaolinite —> dickite. II) Na-plagioclase —> kaolinite —> dickite (EN)

Kos Island (EN)
kaolinite (EN)
mixed-layer kaolinite-smectite (EN)
hydrothermal activity (EN)
dickite (EN)
rhyolite (EN)

Δελτίο της Ελληνικής Γεωλογικής Εταιρίας

English

Geological Society of Greece (EN)

0438-9557
2529-1718
Δελτίο της Ελληνικής Γεωλογικής Εταιρείας; Τόμ. 34 Αρ. 3 (2001): 9o διεθνές Συνέδριο της ΕΓΕ; 867-874 (EL)
Bulletin of the Geological Society of Greece; Vol. 34 No. 3 (2001): 9th International Conference of the Geological Society of Greece; 867-874 (EN)

Copyright (c) 2018 D. PAPOULIS, P. TSOLIS - KATAGAS (EN)
https://creativecommons.org/licenses/by-nc/4.0



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