Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA)

Autor:	Viacheslav Zgonnik, Valérie Beaumont, Eric Deville, Nikolay Larin, Kathleen M. Farrell, Daniel Pillot
Rok vydání:	2015
Předmět:	geography geography.geographical_feature_category Oceanography Coastal plain Hydrogen molecule General Earth and Planetary Sciences Fluid migration East European Craton Biogeosciences Natural (archaeology) Geology
Zdroj:	Progress in Earth and Planetary Science. 2
ISSN:	2197-4284
DOI:	10.1186/s40645-015-0062-5
Popis:	A study of soil gases was made in North Carolina (USA) in and around morphological depressions called “Carolina bays.” This type of depression is observed over the Atlantic coastal plains of the USA, but their origin remains debated. Significant concentrations of molecular hydrogen (H2) were detected, notably around the bays. These measurements suggest that Carolina bays are the surficial expression of fluid flow pathways for hydrogen gas moving from depth to the surface. The potential mechanisms of H2 production and transport and the geological controls on the fluid migration pathways are discussed, with reference to the hypothesis that Carolina bays are the result of local collapses caused by the alteration of rock along the deep pathways of H2 migrating towards the surface. The present H2 seepages are comparable to those in similar structures previously observed in the East European craton.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2c4d5725028aae9f434ee37dc0fc1b2 https://doi.org/10.1186/s40645-015-0062-5 Zobrazit plný text záznamu Full text from SpringerLink