Natural or native hydrogen (H2), also known as "white" or even “gold” hydrogen, is currently considered as a possible energy resource for the development of a carbon-free society. For more than a century, many natural geological fluids carrying H2 have been discovered, but to date, there is no exploration strategy or resource assessment as operational guidelines for hydrogen targeting are still lacking. The goal for academics is now to move forward methodically to reasonably assess the (…)

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Contacts: Professor Frederic Victor Donzé and/or Professor Laurent Truche

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World geological map showing the location of some well-documented occurrences of fluids enriched in H2 and putative abiotic hydrocarbons in the Earth’s crust. The color code of the symbols is a first-order classification based on the geological context. Sources of H2 in intracratonic basins are currently poorly constrained. Also shown are locations where large quantities of gaseous H2, mostly produced by steam reforming of natural gas, have been stored in salts caverns such as Beaumont (…)

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