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Mollusk Shell Nacre Ultrastructure Correlates with Environmental Temperature and Pressure Print
Tuesday, 07 February 2012 00:00

Nacre, or mother-of-pearl, is the tough, iridescent biomineral lining the inner side of some mollusk shells. The micro-structure of nacre is correlated with the temperature at which nacre was deposited. It is therefore possible that mollusk shell nacre could be used as a thermometer for modern and past climates. Once validated nacre could become a physical, non-chemical temperature proxy. The shells shown here are representative of the three nacre-forming mollusk classes: gastropods, bivalves, and cephalopods, respectively (Haliotis rufescens, Pinctada margaritifera, Nautilus pompilius). Article Link (PDF)