Data/hora: 16/06/2024 18:58:48

Provedor de dados: 	5	
País: 	France	
Título: 	Unravelling the root zone of ultramafic‐hosted black smokers‐like hydrothermalism from an Alpine analog	
Autores: 	Coltat, Rémi; Branquet, Yannick; Gautier, Pierre; Campos Rodriguez, Hector; Poujol, Marc; Pelleter, Ewan; Mcclenaghan, Sean; Manatschal, Gianreto; Boulvais, Philippe.	
Data: 	2019-12	
Ano: 	2019	
Resumo: 	Mid‐Ocean Ridges host various types of hydrothermal systems including high‐T black‐smokers found in ultramafic rocks exhumed along slow spreading ridges. These systems are mostly described in two dimensions as their exposure on the present‐day seafloor lacks the vertical dimension. One way to understand these systems at depth is to study their fossilized equivalents preserved on‐land. Such observation can be done in the Platta nappe, Switzerland, where a Jurassic‐aged mineralized system is exposed in 3D. Serpentinites host a Cu‐Fe‐Ni‐Co‐Zn‐rich mineralization made of sulphides, magnetite and Fe‐Ca‐silicates either replacing serpentinites or within stockwork. Fe‐Ca‐silicates, abundant at the deepest levels, vanish in the mineralization close to the palaeo‐detachment. Fluids were channelized along mafic dykes and sills acting as preferential drains. Warm carbonation (~130°C) is the latest hydrothermal record. We propose that this system is an analog to the root zone of present‐day serpentinite‐hosted hydrothermal systems such as those found along the Mid‐Atlantic Ridge.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	https://archimer.ifremer.fr/doc/00588/70028/68013.pdf

DOI:10.1111/ter.12427

https://archimer.ifremer.fr/doc/00588/70028/	
Editor: 	Wiley	
Formato: 	application/pdf	
Fonte: 	Terra Nova (0954-4879) (Wiley), 2019-12 , Vol. 31 , N. 6 , P. 549-561	
Fonte: 	info:eu-repo/semantics/openAccess

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