Diagenesis of the Sedimentary Fe–Ni Deposits of Euboea: Evidence Based on Phyllosilicate Mineralogy

A set of samples with different textures from the sedimentary Fe–Ni deposits of Central Euboea, Greece, were studied with XRD and SEM-EDS to investigate the relationships between phyllosilicates present. The deposits are characterized by the coexistence of smectite, corrensite, R0 mixed-layer chlori...

Full description

Bibliographic Details
Published in:Materials Proceedings
Main Authors: Spyros Cheliotis-Chatzidimitriou, Georgios E. Christidis, Ioannis Marantos
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Subjects:
sedimentary Fe–Ni deposits
mixed layer chlorite-smectite
corrensite
serpentine
smectite
chlorite
Online Access:https://www.mdpi.com/2673-4605/5/1/73
Description
Summary:A set of samples with different textures from the sedimentary Fe–Ni deposits of Central Euboea, Greece, were studied with XRD and SEM-EDS to investigate the relationships between phyllosilicates present. The deposits are characterized by the coexistence of smectite, corrensite, R0 mixed-layer chlorite-smectite and discrete chlorite, which indicates disequilibrium conditions. It is suggested that chlorite, the main Ni-host in the deposits, formed by conversion of smectite (nontronite and possibly stevensite), via corrensite and R0 Chl-Sme during diagenesis. This is the first report for chloritization of Fe-rich dioctahedral smectite during diagenesis.
ISSN:2673-4605

Similar Items