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Preferred orientation of calcite in the Aepyornis eggshell
Author(s) -
SilynRoberts H.,
Sharp R. M.
Publication year - 1986
Publication title -
journal of zoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 96
eISSN - 1469-7998
pISSN - 0952-8369
DOI - 10.1111/j.1469-7998.1986.tb01909.x
Subject(s) - calcite , extant taxon , shell (structure) , eggshell , texture (cosmology) , biology , orientation (vector space) , zoology , anatomy , evolutionary biology , ecology , materials science , paleontology , composite material , geometry , artificial intelligence , computer science , image (mathematics) , mathematics
Using X‐ray diffractometry, the development of preferred orientation of the calcite was studied in the Aepyornis eggshell. As in the shells of the extant ratite species, a high degree of texture develops in which the (001) plane lies parallel to the shell surface. This texture then decreases gradually throughout the outer half of the shell.