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Article Dans Une Revue The American Mineralogist Année : 2007

Onion morphology and microstructure of polyhedral serpentine

Résumé

We describe the shape and internal structure of polyhedral spheroids found in serpentinized peridotites. Serpentine spheroids resemble geodesic domes made of ~160 to 180 triangular facets. At facet edges, the nested layers bend by ~14° along their three <010> crystallographic directions, resulting in an onion-like structure with lateral continuity of the layers. The stacking of the serpentine layers within sectors is controlled by interlayer bonding. These polyhedral onions correspond to a novel type of spherical nanostructure for layered materials
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Dates et versions

hal-00279772 , version 1 (15-05-2008)

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Alain Baronnet, Muriel Andréani, O. Grauby, Bertrand Devouard, Serge Nitsche, et al.. Onion morphology and microstructure of polyhedral serpentine. The American Mineralogist, 2007, 92, pp.687-690. ⟨10.2138/am.2007.2388⟩. ⟨hal-00279772⟩
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