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1 Institut de Minéralogie et de Physique des Milieux condensés,
CNRS UMR 7590, Université Pierre et Marie Curie-Paris 6,
Université Paris 7, Institut de Physique du Globe de Paris, 75005
Paris, France E-mail:
calas{at}impmc.jussieu.fr
2 Department of Geology, University of Toronto, 22 Russell Street, Toronto,
Ontario M5S 3B1, Canada
E-mail:
henders{at}geology.utoronto.ca
3 Department of Geological and Environmental Sciences, Stanford University,
Stanford, California 94305-2115, USA
E-mail:
stebbins{at}stanford.edu
Silicate melts are major components of magmatic activity and of its most spectacular expression, volcanic eruptions. The "hidden part" is even more fascinating, as silicate melts are directly involved in matter and heat transfer within the Earth and planets. Silicate glasses, often investigated as a frozen picture of their molten counterparts, are also materials of major importance in technology. Despite the difficulties in rationalizing physical and chemical properties of glasses and melts, due to an incomplete knowledge of their structure, major progress has been made recently in synthetic and natural systems. This issue of Elements reviews the properties of silicate glasses and melts from the molecular to the field scale. It includes insights into their technological applications and describes some recent advances this fast-evolving field.
KEYWORDS: magmas, volcanology, geochemistry, glasses, silicate materials
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