Skip to Main content Skip to Navigation
New interface
Journal articles

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 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.
Keywords : Tremolite
Document type :
Journal articles
Complete list of metadata
Contributor : Patricia Calloch Connect in order to contact the contributor
Submitted on : Friday, August 27, 2021 - 7:50:14 AM
Last modification on : Friday, April 1, 2022 - 3:50:44 AM
Long-term archiving on: : Sunday, November 28, 2021 - 6:03:57 PM


Publication funded by an institution


Distributed under a Creative Commons Attribution 4.0 International License




Dario Di Giuseppe, Natale Perchiazzi, Daniele Brunelli, Tommaso Giovanardi, Luca Nodari, et al.. Occurrence and characterization of tremolite asbestos from the Mid Atlantic Ridge. Scientific Reports, 2021, 11 (1), ⟨10.1038/s41598-021-85576-w⟩. ⟨hal-03324973⟩



Record views


Files downloads