Dating multistage paleofluid percolations: A K-Ar and 18O/16O study of fracture illites from altered Hercynian plutonites at the basement/cover interface (Poitou High, France)

Autor:	Marie-Christine Boiron, Davy Rousset, Serge Fourcade, Stéphane Buschaert, Alain Meunier, Marc Javoy, Véronique Lavastre, Norbert Clauer, Michel Cathelineau
Rok vydání:	2004
Předmět:	Recrystallization (geology) Stable isotope ratio Geochemistry Mineralogy Authigenic engineering.material Basement (geology) Geochemistry and Petrology Isotope geochemistry Illite engineering Sedimentary rock Clay minerals Geology
Zdroj:	Geochimica et Cosmochimica Acta. 68:2529-2542
ISSN:	0016-7037
DOI:	10.1016/j.gca.2003.10.037
Popis:	Isotopic age determination of fluid events in basement fractures is of prime importance for the reconstruction of paleo-hydraulic regimes. However, material from fracture or wall-rock is not generally easily dated. In the case of fractures filled by minerals such as phyllosilicates, it can be expected that subsequent fluid circulation may cause partial alteration or recrystallization of the previous phyllosilicates, disturbing the isotope signature. Using a specific methodology, including the extraction process without contamination of the finest (
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::efe781b7961f34bd21e1abf2d02e9c46 https://doi.org/10.1016/j.gca.2003.10.037 Zobrazit plný text záznamu Full Text from ScienceDirect