Speaker
Dr
Erika Griesshaber
(Department für Geo- und Umweltwissenschaften)
Description
We investigated the sub-micrometer to nanometer scale organization of calcite and aragonite biocrystals with EBSD, FE-SEM and STEM. We highlight the very specific microstructural nature of foraminiferal calcite and aragonite, in particular, the extensive {001} twinning of shell carbonate, describe a new microstructure for the twinned crystals and show that species that developed perfect/near-perfect spherical chamber/shell morphologies have their shell calcite almost fully twinned.
Primary author
Dr
Erika Griesshaber
(Department für Geo- und Umweltwissenschaften)
Co-authors
Prof.
Antonio Checa
Mrs
Heidemarie Gänsler
Prof.
Martin Heß
Mrs
Jeraldine Lastam
Prof.
Wolfgang W. Schmahl
Dr
Isabel Sánchez-Almazo
Dr
Xiaofei Yin
