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Fe in P-doped basaltic melts: a Mössbauer spectroscopy study

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Matlett-2018-accepted.pdf (891,9Kb)
 
10.1016/j.matlet.2018.05.018
 
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Cita com:
hdl:2117/131806

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Tarragó Aymerich, Mariona
García-Vallès, Maite
Méndez Martínez, Salvador
Pradell Cara, TrinitatMés informacióMés informacióMés informació
Bruna Escuer, PereMés informacióMés informacióMés informació
Document typeArticle
Defense date2018-10-01
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
This work is protected by the corresponding intellectual and industrial property rights. Except where otherwise noted, its contents are licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
The addition of P to a basalt causes a change in the environment of Fe. At low P contents iron is located in the glass structure and the Fe3+/Fe2+ ratio is about 80/20. Further addition of P causes a collapse of the glass structure related to a phase separation that triggers the crystallization of a more reduced iron-containing phosphate phase with a crystalline structure similar to that of stanfieldite, and Mössbauer parameters similar to those of the alluaudite group, together with the formation of a Fe3+-Fe2+ disordered phase. Their presence increases the viscosity of the melt.
CitationTarrago, M. [et al.]. Fe in P-doped basaltic melts: a Mössbauer spectroscopy study. "Materials letters", 1 Octubre 2018, vol. 228, núm. October 2018, p. 57-60. 
URIhttp://hdl.handle.net/2117/131806
DOI10.1016/j.matlet.2018.05.018
ISSN0167-577X
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S0167577X18307547
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