Institut des Sciences de la Terre d'Orléans
ISTO, UMR 7327,
Univ Orléans, CNRS, BRGM, OSUC, F-45071 Orléans, France
Évènements
Évènements passés
Navigation de la liste des Évènements
juin 2019
juillet 2019
septembre 2019
novembre 2024
décembre 2024
+ Exporter les évènements
« A quoi sert de faire de la géologie quand on n’a pas les cailloux ? »
Dans le cadre de notre série de conférences, Fabrice Gaillard répondra de façon simplifiée mais complète à la question « A quoi sert de faire de la géologie quand on n'a pas les cailloux ? » Lieu : Amphithéâtre de l'OSUC Rappelons que ces moments conviviaux, ouverts à tous, permettent à chacun d'entre nous de mieux se connaître. Venez nombreux ! La présentation sera suivie d'un pot, qui aura lieu en salle de réunion E001.
Voir les détails »Workshop Knowledge’s frontiers in water unsaturated hydrogeosystems: interface dynamics, heterogeneities & couplings
Show programme and abstracts
Voir les détails »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…
Voir les détails »Séminaire Alban Cheviet
Impact of magma-sediment-fluid interactions on the sulphur cycle in sedimentary basins: example of the Guaymas Basin Sedimentary basins are an important reservoir of volatile elements such as C, S, H, Cl and F on Earth, at the interface between surface reservoirs (oceans, biosphere and atmosphere) and deep reservoirs (lithosphere). Diagenetic and biological processes control the precipitation of dissolved sulphur in pore water into framboidal pyrite. This sulphur cycle can be disrupted by the emplacement of magmatic intrusions in the sediments.…
Voir les détails »Séminaire Romain Augier
Dater l'activité des failles par la méthode U/Pb sur Calcite Absolute dating of an increment of deformation remains extremely challenging as the result of the complex behavior of the isotopic systems in geological environments. This prevents estimating duration and rates of geological processes. Rates are however crucial to unravel the rheology of the continental crust, particularly away from plate boundaries, i.e. in low-strain portions of the continental crust. The unpreceded development of U/Pb LA-ICP-MS analyses on carbonates opened the way…
Voir les détails »Seminar Sophie Decrée
Apatite in Europe: recent updates from EU projects Phosphate rock was included in the list of critical raw materials (CRMs) for the EU in 2014. Fluorine (F) and rare earth elements (REE) are additional CRMs that can be extracted from phosphate deposits. Although apatite deposits and occurrences are widespread across Europe, there is still a notable lack of understanding regarding their genesis and potential for CRM extraction. Recent projects have contributed to advancing knowledge in these areas. This presentation will…
Voir les détails »Séminaire Pablo Léon Higueras
Mercury in Almaden. From the mantle to the environment Professor Pablo Léon Higueras, Université de Castilla-La Mancha, Instituto de Geologia Aplicada (IGeA) Pablo L. Higueras holds a Doctorate in Geological Sciences from the University of Granada, Spain. From 1980 to 1990, he worked as a Project Geologist for "Investigaciones Geológicas y Mineras S.A" (INGEMISA) and "Minas de Almadén y Arrayanes S.A." (MAYASA), where he led consulting projects for INGEMISA and internal mining research for MAYASA. In 1990, he joined the…
Voir les détails »