Once again on the shock impact topic. In her new nice manuscript in Scientific Reports Mara Murri presents some of the recent considerations about structural disorder in the form of complex combinations of cubic and hexagonal stacking motifs...
Read moreQuartz‐in‐garnet and Ti‐in‐quartz thermobarometry for gneiss from eastern Papua New Guinea
With this new manuscript just published in Journal of Metamorphic Geology Joe has done an excellent job in showing us advantages and limitations of elastic barometry (quartz in garnet) combined with chemical thermometry (Titanium in quartz) to...
Read moreThe pressure‑induced phase transition(s) of ZrSiO4: revised
A new brilliant manuscript by Boriana and Naemi that finally revise the phase transition(s) of ZrSiO4 at high pressure conditions. In this manuscript published in Physics and Chemistry of Minerals they present the experimental proof for the...
Read moreEditors Selections: Notable papers on American Mineralogist (June 2019)
Quoting the really nice paragraph by the Editors of American Mineralogist about our paper: “stangaronite….”! Stangarone et al. (page 830) used density functional theory (DFT) simulations of the structures of zircon and reidite...
Read moreViscosity experiments at superliquidus temperatures
Rheology is the key factor to understand dynamic processes and behavior of magma rising through volcanic conduit and lava emplacement on Earth or other terrestrial planets. Today we can monitor the evolution of magma and volcanic mixtures by...
Read moreElastic geobarometry using zircons
In her latest study Claudia Stangarone carried out ab initio hybrid Hartree-Fock/Density Functional Theory simulations to determine the structure and vibrational modes of zircon, ZrSiO4, as a function of different applied strains. In her...
Read moreMagnesiochromite inclusions in diamonds: what do they tell us?
In this new nice chapter of the saga of the orientation of inclusions in diamonds Paolo Nimis proposes the mechanical interaction between euhedral crystals in a fluid-rich environment as the most likely mechanism to produce the observed...
Read moreJoin the PetroChro-19 workshop: Melting, modelling, dating the crust
This short course, organized by Silvio Ferrero and Pierre Lanari aims to offer to PhD students and early carrier scientists working in the fields of metamorphic petrology, petrochronology and geochemistry a detailed overview of the most recent...
Read moreStructure and properties of quartz under non-hydrostatic stress
Mara Murri marks the beginning of the new year with an incredibly nice paper showing the effect of non-hydrostatic stresses on the structure of alpha-quartz. This investigation carried out through ab initio hybrid Hartree–Fock/DFT simulations...
Read moreSettimana del Pianeta Terra 2018
METEORITI, CRATERI DA IMPATTO E TUNNEL DI LAVA: IL CONTRIBUTO DELLE SCIENZE GEOLOGICHE ALLO STUDIO DEI MATERIALI EXTRATERRESTRI E DEGLI ANALOGHI PLANETARI E ALLA PREPARAZIONE DELLE FUTURE MISSIONI ESPLORATIVE PLANETARIE Mara Murri gave a really...
Read moreEuroplanet 2018
Mara Murri’s proposal “Cathodoluminescence as a tool for unravelling shock features of diamonds from impact craters” has been supported for 5 days of facility time by Europlanet 2020 Research Infrastructure funding scheme for a...
Read moreExperimental validation of intracrystalline “geothermometry” for rocks
In this paper, we test the available experimental calibrations for clino and orthopyroxenes as geothermometer by determining their site in synthetic samples grown from a hydrous nepheline basanite in a piston-cylinder apparatus at 1050 °C at...
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