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La région de Villefranche-de-Rouergue, dans l’Aveyron, présente un intérêt non négligeable pour les férus de minéralogie. Située à cheval sur le socle cristallin du S-W du Massif Central français et sur les Causses sédimentaires du Quercy, la région est transversée par une faille majeure qui a permis l’ascension de fluides liés à des de plutons granitiques, à l’origine des veines hydrothermales minéralisées que nous observons aujourd’hui et qui ont été vivement exploitées dans le passé. Ces filons riches en Pb, Zn, Cu et Ag, étudiés à Asprières, dans le site de la Baume et dans la carrière de Laguépie, font le bonheur des minéralogistes car ils présentent une multitude de phases minérales allant de la chalcopyrite massive à de la pyromorphite, en passant par une série de sulfates, carbonates et silicates aux couleurs très variées. A partir de ces minéraux, des analyses par microscopie, diffraction des rayons X, fluorescence X et à l’aide du microscope électronique à balayage ont permis de mettre en évidence des différences dans les espèces minérales présentent dans les trois lieux étudiés. Des zones d’enrichissement en Pb et Zn, avec de la sphalérite et de la galène, se démarquent clairement dans le Nord de la région, passant progressivement à des phases essentiellement composées de Cu et Fe, avec de la chalcopyrite et de la pyrite, vers le Sud. Selon la présence de ces différentes phases minérales et de leur agencement dans les filons, nous pouvons hypothétiquement conclure que les différents dépôts filoniens de la région ont été formés à des températures de l’ordre de 160 à 230 °C à Asprières, de 160 à 250 °C avec formation de bournonite entre 230 et 250 °C à la Baume, et de 275 à 355 °C à la carrière de Laguépie. De plus, un processus cyclique de pulses des fluides hydrothermaux par précipitation successive de barite, de quartz et puis de sulfures a pu être souligné.

France - Villefranche-de-Rouergue - Massif Central - Minéralogie - Modèle génétique --- Physique, chimie, mathématiques & sciences de la terre > Sciences de la terre & géographie physique

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This Special Issue delivered 16 scientific papers, with the aim of exploring the application of carbon capture and storage technologies for mitigating the effects of climate change. Special emphasis has been placed on mineral carbonation techniques that combine innovative applications to emerging problems and needs. The aim of this Special Issue is to contribute to improved knowledge of the ongoing research regarding climate change and CCS technological applications, focusing on carbon capture and storage practices. Climate change is a global issue that is interrelated with the energy and petroleum industry.

Research & information: general --- Earth sciences, geography, environment, planning --- CO2 storage --- depleted gas field --- soil-gas monitoring --- baseline --- injection --- post-injection --- photocatalytic concrete pavement --- NO reduction --- SEM analysis --- carbon emissions --- emission coefficient --- agricultural land --- agricultural inputs --- agricultural policies --- Qinghai province --- carbon nanospheres --- nanocarbon spheres --- carbon dioxide uptake --- EDA --- CO2 sequestration --- physical simulation --- Numerical modelling --- dissolution --- precipitation --- kinetics --- solid-gas reactions --- carbonate looping --- calcium looping --- thermochemical energy storage --- carbon capture and storage --- CO2 capture --- Monte Carlo --- machine learning --- metal-organic framework --- adsorption --- diffusion --- climate change --- carbon emission --- carbon-capturing concrete --- carbon capture activator --- carbon reduction --- CO2 ocean geological storage --- multi-scale ocean model --- hydrostatic approximation --- Eulerian-Lagrangian two-phase model --- environmental impact --- calcium carbonate --- molecular dynamics --- carbon utilization --- gelation --- slag valorization --- metallurgical dusts --- slag cement --- CO2 emissions --- EAF slag --- zero waste --- utilization and storage --- mafic plutonic rocks --- mineral carbonation --- screening and ranking --- Sines massif --- Portugal --- CO2 adsorption --- nanopore --- coal structure deformation --- tectonically deformed coal --- supercritical CO2 --- experimental test --- CO2 capture process --- solvent-based absorption/desorption --- off-design operation --- phase-change solvents --- sensitivity analysis --- CCS --- carbonated water injection --- CO2-EOR --- pore network modelling --- relative permeability --- CO2 storage --- depleted gas field --- soil-gas monitoring --- baseline --- injection --- post-injection --- photocatalytic concrete pavement --- NO reduction --- SEM analysis --- carbon emissions --- emission coefficient --- agricultural land --- agricultural inputs --- agricultural policies --- Qinghai province --- carbon nanospheres --- nanocarbon spheres --- carbon dioxide uptake --- EDA --- CO2 sequestration --- physical simulation --- Numerical modelling --- dissolution --- precipitation --- kinetics --- solid-gas reactions --- carbonate looping --- calcium looping --- thermochemical energy storage --- carbon capture and storage --- CO2 capture --- Monte Carlo --- machine learning --- metal-organic framework --- adsorption --- diffusion --- climate change --- carbon emission --- carbon-capturing concrete --- carbon capture activator --- carbon reduction --- CO2 ocean geological storage --- multi-scale ocean model --- hydrostatic approximation --- Eulerian-Lagrangian two-phase model --- environmental impact --- calcium carbonate --- molecular dynamics --- carbon utilization --- gelation --- slag valorization --- metallurgical dusts --- slag cement --- CO2 emissions --- EAF slag --- zero waste --- utilization and storage --- mafic plutonic rocks --- mineral carbonation --- screening and ranking --- Sines massif --- Portugal --- CO2 adsorption --- nanopore --- coal structure deformation --- tectonically deformed coal --- supercritical CO2 --- experimental test --- CO2 capture process --- solvent-based absorption/desorption --- off-design operation --- phase-change solvents --- sensitivity analysis --- CCS --- carbonated water injection --- CO2-EOR --- pore network modelling --- relative permeability

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This Special Issue delivered 16 scientific papers, with the aim of exploring the application of carbon capture and storage technologies for mitigating the effects of climate change. Special emphasis has been placed on mineral carbonation techniques that combine innovative applications to emerging problems and needs. The aim of this Special Issue is to contribute to improved knowledge of the ongoing research regarding climate change and CCS technological applications, focusing on carbon capture and storage practices. Climate change is a global issue that is interrelated with the energy and petroleum industry.

CO2 storage --- depleted gas field --- soil-gas monitoring --- baseline --- injection --- post-injection --- photocatalytic concrete pavement --- NO reduction --- SEM analysis --- carbon emissions --- emission coefficient --- agricultural land --- agricultural inputs --- agricultural policies --- Qinghai province --- carbon nanospheres --- nanocarbon spheres --- carbon dioxide uptake --- EDA --- CO2 sequestration --- physical simulation --- Numerical modelling --- dissolution --- precipitation --- kinetics --- solid–gas reactions --- carbonate looping --- calcium looping --- thermochemical energy storage --- carbon capture and storage --- CO2 capture --- Monte Carlo --- machine learning --- metal–organic framework --- adsorption --- diffusion --- climate change --- carbon emission --- carbon-capturing concrete --- carbon capture activator --- carbon reduction --- CO2 ocean geological storage --- multi-scale ocean model --- hydrostatic approximation --- Eulerian–Lagrangian two-phase model --- environmental impact --- calcium carbonate --- molecular dynamics --- carbon utilization --- gelation --- slag valorization --- metallurgical dusts --- slag cement --- CO2 emissions --- EAF slag --- zero waste --- utilization and storage --- mafic plutonic rocks --- mineral carbonation --- screening and ranking --- Sines massif --- Portugal --- CO2 adsorption --- nanopore --- coal structure deformation --- tectonically deformed coal --- supercritical CO2 --- experimental test --- CO2 capture process --- solvent-based absorption/desorption --- off-design operation --- phase-change solvents --- sensitivity analysis --- CCS --- carbonated water injection --- CO2-EOR --- pore network modelling --- relative permeability --- n/a --- solid-gas reactions --- metal-organic framework --- Eulerian-Lagrangian two-phase model