High resolution electron backscatter diffraction (EBSD) data from calcite biominerals in recent gastropod shells

A. Perez-Huerta (1) , Y. Dauphin (2) , J.P. Cuif (2) , M. Cusack (3)

1 Department of Geological Sciences [Tuscaloosa]
2 IDES - Interactions et dynamique des environnements de surface
3 Glasgow School Geogr. & Earth Science

Electron backscatter diffraction (EBSD) is a microscopy technique that reveals in situ crystallographic information. Currently, it is widely used for the characterization of geological materials and in studies of biomineralization. Here, we analyze high resolution EBSD data from biogenic calcite in two mollusk taxa, Concholepas and Haliotis, previously used in the understanding of complex biomineralization and paleoenvironmental studies. Results indicate that Concholepas has less ordered prisms than in Haliotis, and that in Concholepas the level of order is not homogenous in different areas of the shell. Overall, the usefulness of data integration obtained from diffraction intensity and crystallographic orientation maps, and corresponding pole figures, is discussed as well as its application to similar studies. (C) 2010 Elsevier Ltd. All rights reserved.

Domaines: Sciences de la Terre

A. Perez-Huerta, Y. Dauphin, J.P. Cuif, M. Cusack. High resolution electron backscatter diffraction (EBSD) data from calcite biominerals in recent gastropod shells. Micron, 2011, 42 ((3)), pp.:246-251 (IF 1,626). ⟨hal-00576748⟩