TRUCHE, Laurent; DONZÉ, Frédéric-Victor; GOSKOLLI, Edmond; MUCEKU, Bardhyl; LOISY, Corinne; MONNIN, Christophe; DUTOIT, Hugo; CEREPI, Adrian

doi:10.1126/science.adk9099

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TRUCHE, Laurent
Institut des Sciences de la Terre [ISTerre]

DONZÉ, Frédéric-Victor
Institut des Sciences de la Terre [ISTerre]

GOSKOLLI, Edmond
National Agency of Natural Resources = Agjencia Kombetare e Burimeve Natyrore [AKBN]

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Article de revue

Ce document a été publié dans

Science. 2024-02-09, vol. 383, n° 6683, p. 618-621

Résumé en anglais

Deep crustal production of hydrogen (H 2 ) is a potential source of primary energy if recoverable accumulations in geological formations are sufficiently large. We report direct measurements of an elevated outgassing rate of 84% (by volume) of H 2 from the deep underground Bulqizë chromite mine in Albania. A minimum of 200 tons of H 2 is vented annually from the mine’s galleries, making it one of the largest recorded H 2 flow rates to date. We cannot attribute the flux solely to the release of paleo-fluids trapped within the rocks or to present-day active and pervasive serpentinization of ultramafic rocks; rather, our results demonstrate the presence of a faulted reservoir deeply rooted in the Jurassic ophiolite massif. This discovery suggests that certain ophiolites may host economically useful accumulations of H 2 gas.< Réduire

URI

https://oskar-bordeaux.fr/handle/20.500.12278/206016

DOI

http://dx.doi.org/10.1126/science.adk9099

Project ANR

Sources, distribution et flux d'hydrogène (H2) et des gaz associés dans les complexes alcalins (exemple de Khibiny et Lovozero, péninsule de Kola, Russie): conséquences métallogéniques et environnementales - ANR-20-CE01-0020

Unités de recherche

EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805