Shock in meteorite impacts may transform zircon (ZrSiO4) into a denser polymorph, reidite, but the mechanism and significance of this transformation has been obscured by discrepancies between observations on natural and experimental samples. In...
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 moreStrain release after polishing
In his new paper Nicola Campomenosi addresses the issues related to the release of the residual pressure in the inclusion due to exposure to the external pressure after polishing of the thin section. He illustrates with a careful set of...
Read moreDetermine strains on inclusions from Raman measurements
In her new paper published on American Mineralogist, Mara Murri, describes a method for determining the strains in quartz inclusions from Raman spectroscopy using the concept of the phonon-mode Grüneisen tensor, which we determine by ab initio...
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...
Read moreFinite Element modelling of stresses in inclusions by Mattia L. Mazzucchelli on Geology.
Check our our latest paper on Finite Element modelling of stresses in inclusions by Mattia L. Mazzucchelli on Geology. Elastic geothermobarometry on inclusions is a method to determine pressure-temperature conditions of mineral growth independent...
Read moreEosFit-Pinc released
An exact solution to the problem in elastic geobarometry of combining non-linear Equations of State (EoS) with the elastic relaxation for elastically isotropic spherical host-inclusion systems without any approximations of linear elasticity is...
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