Occurrence and characterization of tremolite asbestos from the Mid Atlantic Ridge

Abstract Tremolite is one of the most common amphibole species and, in the fibrous form (i.e., characterized by crystals/particles consisting of fibres with length > 5 µm, width < 3 µm and aspect ratio > 3), one of the six asbestos minerals. Until now the attention of crystallographers has...

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Autores principales: Dario Di Giuseppe, Natale Perchiazzi, Daniele Brunelli, Tommaso Giovanardi, Luca Nodari, Giancarlo Della Ventura, Daniele Malferrari, Marcia Maia, Alessandro F. Gualtieri
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/42489f84515944489d8b16c8a830cd37
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spelling oai:doaj.org-article:42489f84515944489d8b16c8a830cd372021-12-02T17:05:45ZOccurrence and characterization of tremolite asbestos from the Mid Atlantic Ridge10.1038/s41598-021-85576-w2045-2322https://doaj.org/article/42489f84515944489d8b16c8a830cd372021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-85576-whttps://doaj.org/toc/2045-2322Abstract Tremolite is one of the most common amphibole species and, in the fibrous form (i.e., characterized by crystals/particles consisting of fibres with length > 5 µm, width < 3 µm and aspect ratio > 3), one of the six asbestos minerals. Until now the attention of crystallographers has focused only on samples from continental environment. Here we report the first chemical and structural data of a tremolite asbestos found along the Mid Atlantic Ridge (MAR) at the eastern intersection of the Romanche Transform Fault (Equatorial MAR). Tremolite is associated with chlorite and lizardite and was formed through the green shale facies lower than zeolite in a predominantly fluid system. MAR tremolite asbestos shows very slight deviations from the ideal crystal structure of tremolite. Differences in cation site partitioning were found with respect to tremolite asbestos from ophiolitic complexes, attributed to the different chemical–physical conditions during the mineral formation. In particular, oceanic tremolite asbestos is enriched in Al and Na, forming a trend clearly distinct from the continental tremolites.Dario Di GiuseppeNatale PerchiazziDaniele BrunelliTommaso GiovanardiLuca NodariGiancarlo Della VenturaDaniele MalferrariMarcia MaiaAlessandro F. GualtieriNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Dario Di Giuseppe
Natale Perchiazzi
Daniele Brunelli
Tommaso Giovanardi
Luca Nodari
Giancarlo Della Ventura
Daniele Malferrari
Marcia Maia
Alessandro F. Gualtieri
Occurrence and characterization of tremolite asbestos from the Mid Atlantic Ridge
description Abstract Tremolite is one of the most common amphibole species and, in the fibrous form (i.e., characterized by crystals/particles consisting of fibres with length > 5 µm, width < 3 µm and aspect ratio > 3), one of the six asbestos minerals. Until now the attention of crystallographers has focused only on samples from continental environment. Here we report the first chemical and structural data of a tremolite asbestos found along the Mid Atlantic Ridge (MAR) at the eastern intersection of the Romanche Transform Fault (Equatorial MAR). Tremolite is associated with chlorite and lizardite and was formed through the green shale facies lower than zeolite in a predominantly fluid system. MAR tremolite asbestos shows very slight deviations from the ideal crystal structure of tremolite. Differences in cation site partitioning were found with respect to tremolite asbestos from ophiolitic complexes, attributed to the different chemical–physical conditions during the mineral formation. In particular, oceanic tremolite asbestos is enriched in Al and Na, forming a trend clearly distinct from the continental tremolites.
format article
author Dario Di Giuseppe
Natale Perchiazzi
Daniele Brunelli
Tommaso Giovanardi
Luca Nodari
Giancarlo Della Ventura
Daniele Malferrari
Marcia Maia
Alessandro F. Gualtieri
author_facet Dario Di Giuseppe
Natale Perchiazzi
Daniele Brunelli
Tommaso Giovanardi
Luca Nodari
Giancarlo Della Ventura
Daniele Malferrari
Marcia Maia
Alessandro F. Gualtieri
author_sort Dario Di Giuseppe
title Occurrence and characterization of tremolite asbestos from the Mid Atlantic Ridge
title_short Occurrence and characterization of tremolite asbestos from the Mid Atlantic Ridge
title_full Occurrence and characterization of tremolite asbestos from the Mid Atlantic Ridge
title_fullStr Occurrence and characterization of tremolite asbestos from the Mid Atlantic Ridge
title_full_unstemmed Occurrence and characterization of tremolite asbestos from the Mid Atlantic Ridge
title_sort occurrence and characterization of tremolite asbestos from the mid atlantic ridge
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/42489f84515944489d8b16c8a830cd37
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