Earth Sciences Institute of Orléans
ISTO, UMR 7327,
Univ Orléans, CNRS, BRGM, OSUC, F-45071 Orléans, France
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Invited Seminar: Jenna Poonoosamy (FZJ-IEK-6, Julïch, Germany)
Coupled reactive transport processes: experiments and multi-scale simulation.
Find out more »Invited Seminar, Hang Deng (LBNL): Geochemical Alteration of Fractures in Heterogeneous Porous Media: A Pore- and Core-Scale Perspective
Geochemical Alteration of Fractures in Heterogeneous Porous Media: A Pore- and Core-Scale Perspective Hang Deng Energy Geosciences Division, Earth & Environmental Sciences Area, Lawrence Berkeley National Laboratory Fractures are the preferential flow pathways in the subsurface environment, and are subject to alteration caused by coupled geochemical-physical processes that are triggered by mineral-fluid interactions. Improved understanding of fracture evolution is critical for the assessment and prediction of the performance of various geological systems that are associated with subsurface energy harness and…
Find out more »Seminar, Florian Osselin (GP Porous Media)
Quantifying Water-Rock interactions during hydraulic fracturing from the analysis of flowback water
Find out more »Invited Seminar: Hannelore Derluyn, CNRS (LFCR UMR 5150, Univ Pau & Pays Adour)
Unravelling salt crystallization dynamics in rock by X-ray tomography Salt crystallization causes major weathering of building stones and landscapes, affects the salinity of soils, and the permeability of rocks. When saline fluids are present in the pore space of a material, salt crystals might precipitate upon changes in temp erature or humidity conditions, leading to salt precipitation on the surface, efflorescence, or to salt crystals precipitating in the pores, subflorescence, which might clog the pores. The confined crystal growth…
Find out more »Florent Cheval-Garabedian’s PhD defence
The Sb and Au late-Variscan ore deposits: towards a unified genetic model Examples from the Armorican Massif and the Central Massif Keywords: Antimony, orogenic gold, mineralogy, structural control, late-Variscan, mineralizing fluids
Find out more »Seminar Piotr Szymczak, University of Warsaw. In search of the ideal form: pattern formation in dissolving rocks
Dissolution of fractured and porous media introduces a positive feedback between fluid transport and chemical reactions at mineral surfaces leading to the formation of pronounced wormhole-like channels. Using the combination of experimental, numerical and analytical techniques, we study the shapes of these channels as a function of the flow rate, reaction rate and initial geometry of the system. In particular, we are interested in finding stationary forms, which advance into the system with constant velocity and stationary shape. The most…
Find out more »Seminar Pierre Lanari
New horizons and computer tools for characterising and modelling crustal metamorphism by . Lanari
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