Skip navigation
Skip navigation

The stability of divalent Ge in silicate melts and its geochemical properties

Mare, Eleanor; O'Neill, Hugh; Berry, Andrew; Glover, Chris

Description

The oxidation state of Ge in silicate glasses, quenched from melts, was determined by X-ray absorption spectroscopy. The melts were equilibrated over the range of relative oxygen fugacities (fO2) from IW -3 to IW +10, where IW is the iron-wüstite oxygen buffer in logarithmic units. X-ray absorption near edge structure (XANES) spectra of the samples show that over the range in fO2 from IW -2.8 to IW + 2.4, the Ge4+/(Ge2+ + Ge4+) ratio increases from 0.05 to 0.95. Modelling of extended X-ray...[Show more]

CollectionsANU Research Publications
Date published: 2020-01-20
Type: Journal article
URI: http://hdl.handle.net/1885/218990
Source: Chemical Geology
DOI: 10.1016/j.chemgeo.2019.119306

Download

File Description SizeFormat Image
01_Mare_The_stability_of_divalent_Ge_2020.pdf3.25 MBAdobe PDF    Request a copy


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator