Concept
Volcan
Publications associées (36)
The influence of water-saturation on the strength of volcanic rocks and the stability of lava domes
Marie Estelle Solange Violay, Michael Heap
The rocks forming a volcanic edifice or dome are typically saturated or partially-saturated with water. However, most experiments aimed at better understanding the mechanical behaviour of volcanic rocks have been performed on dry samples, and therefore mos ...
2023Development of new volcano-shaped microelectrodes for single cell electrochemistry, electrophysiology and impedance studies.
Micro- nano-electrodes have demonstrated superior performances in measuring attenuated intracellular action potentials from electrogenic cell cultures compared to traditional multi-electrode arrays. Yet, the understanding of the critical electrode features ...
EPFL2023The Permeability of Porous Volcanic Rock Through the Brittle-Ductile Transition
Marie Estelle Solange Violay, Gabriel Gérard Dominique Meyer, Corentin Jean-Marie Rémi Noël, Michael Heap
The permeability of volcanic rock controls the distribution of pore fluids and pore fluid pressure within a volcanic edifice, and is therefore considered to influence eruptive style and volcano deformation. We measured the porosity and permeability of a po ...
AMER GEOPHYSICAL UNION2022Novel tooling for direct melt impregnation of textile with variotherm injection moulding: Methodology and proof of concept
Véronique Michaud, Vincent Werlen, Christian Rytka
Thermoplastic compression resin transfer moulding coupled with injection moulding is an appealing process for the production of thermoplastic composites. However, its implementation at an industrial scale remains challenging as variotherm injection mouldin ...
SAGE PUBLICATIONS LTD2022The Genesis of Molecular Volcano Plots
Matthew Wodrich, Michael Markus Busch, Boodsarin Sawatlon
For the past two decades, linear free energy scaling relationships and volcano plots have seen frequent use as computational tools that aid in understanding and predicting the catalytic behavior of heterogeneous and electrocatalysts. Based on Sabatier's pr ...
2021Molecular Volcano Plots: Tools for Rationalizing and Predicting the Performance of Homogeneous Catalysts
The generation of catalyst design tools is important for developing both economically and environmentally friendly reactions. This thesis focuses on the use and development of such a tool, molecular volcano plots, which have the ability to estimate catalyt ...
EPFL2021Taking the pulse of volcanic eruptions using plagioclase glomerocrysts
Anders Meibom, Stéphane Laurent Escrig, Anders McCarthy, Pierre Vonlanthen
Crystallization timescales in subvolcanic systems and the consequences of interaction between ascending magmas and gases remain largely unconstrained, as do links between these processes and monitoring signals at restless volcanoes. We apply diffusion chro ...
ELSEVIER2020Plagioclase Glomerocrysts: taking the pulse of volcanic eruptions
Anders Meibom, Stéphane Laurent Escrig, Anders McCarthy
Volcanic eruptions result from complex interplay of magmatic processes including the ascent and storage of magma in the crust, volatile exsolution and crystallization. The dynamics of crystallization in shallow subvolcanic systems and the consequences of i ...
2019An alternative model for the formation of hydrous Mg/Ni layer silicates ("deweylite"/"garnierite") in faulted peridotites of New Caledonia: II. Petrography and chemistry of white and green clay infillings
This study, which complements a first mineralogical work, presents detailed petrographic and chemical data on the sequences of clay infillings commonly found in serpentine veins of reactivated faults from the New Caledonian peridotite formation. Chemical t ...
E SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG2019Impact of Embodied Energy on materials/buildings with partial replacement of ordinary Portland Cement (OPC) by natural Pozzolanic Volcanic Ash
This work studies the effect on Embodied Energy (EE) of concrete when Ordinary Portland Cement (OPC) is partially substituted with natural Pozzolanic Volcanic Ash (VA) at the material and the building scale. The work aims to demonstrate potential improveme ...
2018