1. EuroSLAB - The rheology of the subducting slab and mantle : Final report EuroSLAB Trieste IPSandro Scandolo, Luigi Giacomazzi, 2011, final research report Abstract: The aim of this Individual Project was to study the microscopic phenomena of
deformation in mantle minerals by means of atomistic modeling. Understanding such
mechanisms and determining their relative importance in different minerals and in the
wide range of pressure and temperature found in the mantle, is a prerequisite for any
interpretation of deformation experiments, of texture modeling, and of their
geophysical implications.
The project was approved for funding in mid 2006, and was carried out in large
part in collaboration with a postdoctoral fellow funded by CNR (Luigi Giacomazzi),
whose fellowship ended on December 15, 2009.
Keywords: gypsum, coesite, silica, dislocations, rheology
Published in RUNG: 08.04.2019; Views: 2898; Downloads: 0
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2. Investigating silica from first-principlesLuigi Giacomazzi, other performed works Abstract: Silica (SiO2 ) is a prototypical binary compound showing a complex
phase diagram. It is the most abundant mineral in the Earth’s crust,
and it has many important technological applications. From a
theoretical point of view, SiO2 is a benchmark requiring both accurate
atomistic models and a multi-scale approach. As an example of the
capabilities of state- of-the-art theoretical modeling, we discuss the
vibrational spectra of vitreous SiO2 with particular attention to the
information that these spectra can provide on the medium-range
structure of the oxide network. Then, as an example of multi-scale
approach we present our work on dislocations in coesite within the
framework of the Peierls-Nabarro model.
Keywords: silica, coesite, dislocations, Peierls-Nabarro
Published in RUNG: 08.04.2019; Views: 2901; Downloads: 0
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