Tracking Magmatic Hydrogen Sulfur Circulations Using Electrical Impedance: Complex Electrical Properties of Core Samples at the Krafla Volcano, Iceland

• Published in: Journal of Geophysical Research: Solid Earth
• Main Authors: Lévy, Léa, GIBERT, Benoit, Sigmundsson, F., Deldicque, D., Parat, Fleurice, Hersir, G.P.
• Other Authors: Laboratoire de géologie de l'ENS (LGENS), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Géosciences Montpellier, Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Faculty of Earth Sciences, University of Iceland, Sturlugata 7, Askja, 101 Reykjavík, Iceland, University of Iceland Reykjavik, Iceland GeoSurvey (ISOR )
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2019
• Subjects: hydrogen sulfur; iron oxides; electrical impedance; pyrite; smectite; hydrothermal systems; [SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]; Krafla; Iceland
• Online Access: https://hal.umontpellier.fr/hal-02127430; https://hal.umontpellier.fr/hal-02127430/document; https://hal.umontpellier.fr/hal-02127430/file/L-vy_et_al-2019-Journal_of_Geophysical_Research__Solid_Earth.pdf; https://doi.org/10.1029/2018JB016814

International audience Interaction of H2S escaping from magma and basaltic rocks leads to pyrite mineralization, witnessing active hydrothermal circulation. We study the possibility to track this process using geoelectrical methods. Complex conductivity spectra of 30 core samples from the Krafla vol...