Mineralogical and geochemical composition of a cementitious grout and its evolution during interaction with water

Autor: Sylvain Grangeon, Mathieu Debure, Valerie Montouillout, Erik Elkaim, Catherine Lerouge, Nicolas Maubec, Nicolas Michau, Xavier Bourbon, Christelle Martin, Benoit Cochepin, Nicolas Marty

Publikováno v: npj Materials Degradation, Vol 8, Iss 1, Pp 1-11 (2024)

Abstract In the present study, the chemical composition, mineralogy, and mechanisms of alteration of a cementitious grout based on a CEM III/C with addition of smectite, hydrotalcite, and silica fume, are studied using a combination of chemical and p

Externí odkaz: https://doaj.org/article/cb6253297d124c4d9bae6e2d71e5567b

Early Diagenesis of Lacustrine Carbonates in Volcanic Settings: The Role of Magmatic CO2 (Lake Dziani Dzaha, Mayotte, Indian Ocean)

Autor: Aurélien Virgone, Gérard Sarazin, François Guyot, Vincent Milesi, Mathieu Debure, Virgile Rouchon, Edouard Bard, Nicolas C.M. Marty, Manuela Capano, Magali Ader, Carl I. Steefel, Patrick Albéric, Eric C. Gaucher, Didier Jézéquel

Publikováno v: ACS Earth and Space Chemistry
ACS Earth and Space Chemistry, ACS, 2020, 16 p. ⟨10.1021/acsearthspacechem.9b00279⟩
ACS Earth and Space Chemistry, ACS, 2020, 4 (3), pp.363-378. ⟨10.1021/acsearthspacechem.9b00279⟩
ACS Earth and Space Chemistry, 2020, 4 (3), pp.363-378. ⟨10.1021/acsearthspacechem.9b00279⟩

International audience; Lacustrine carbonates formed in rift settings are increasingly studied not only as archives of Earth chemical and climatic history but also as potential hydrocarbon source rocks and/or reservoirs. The role of magmatic gases in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b4bb3349b206bd030addf7b930ed98a
https://doi.org/10.1021/acsearthspacechem.9b00279

An improved thermodynamic model based on Pitzer’s equations to describe the chemical behaviour of complex chloride-type brines up to salt solubility and elevated temperatures, for geothermal and economic geology applications

Autor: Laurent André, Johann Tuduri, Arnault Lassin, Mathieu Debure

Publikováno v: Goldschmidt Virtual 2021
Goldschmidt Virtual 2021, Jul 2021, Virtual, France. ⟨10.7185/gold2021.4642⟩

International audience; The context of global warming has changed our perception of the Earth’s subsurface, which is now seen as a source of renewable energy and of valuable elements contained in geothermal waters, as well as a vast geological rese

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83486e9001b51276ce3c578bb3318cc2
https://hal-brgm.archives-ouvertes.fr/hal-03474651

On the interaction between calcite and dolomite: Insights from gas and aqueous geochemistry and mineralogical characterization

Autor: Sylvain Grangeon, M. Lundy, Fabienne Warmont, Benoît Madé, Catherine Lerouge, Laura Bocher, Mathieu Debure

Publikováno v: Chemical Geology
Chemical Geology, Elsevier, 2021, 559, pp.119921. ⟨10.1016/j.chemgeo.2020.119921⟩

The current models developed to determine the pore water chemistry of clayrocks consider that Ca, Mg and Fe are controlled by equilibrium reactions with pure carbonates. However, the Ca/Mg ratios measured in pore water are not always in agreement wit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95945a2f58d441c27a4ab6aade3c05d7
https://hal.archives-ouvertes.fr/hal-03082366

Dissolved gas (CO2, alkanes, O2, N2) in critical zone developed on claystone

Autor: Frédérick Gal, Catherine Lerouge, Mathieu Debure, Jean-Charles Robinet, Wolfram Kloppmann, Michaela Blessing

Weathering processes in clay environments are of major importance because they participate to regulate elemental cycling and mass transfer in the critical zone with major implications for carbon and nitrogen cycling. In that aim, we measured 1) disso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::25fe31c803fa8320c625db0b8c7ac8c6
https://doi.org/10.5194/egusphere-egu2020-11430