Mathematics – Logic
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3311608m&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 11, CiteID L11608
Mathematics
Logic
17
Biogeosciences: Biomineralization, Biogeosciences: Biosignatures And Proxies, Biogeosciences: Paleoclimatology And Paleoceanography (3344, 4900), Paleoceanography: Sea Surface Temperature
Scientific paper
Biological control over coral skeletal composition is poorly understood but critically important to paleo-environmental reconstructions. We present micro-analytical measurements of trace-element abundances as well as oxygen and carbon isotopic compositions of individual skeletal components in the zooxanthellate coral Colpophyllia sp. Our data show that centers of calcification (COC) have higher trace element concentrations and distinctly lighter isotopic compositions than the fibrous components of the skeleton. These observations necessitate that COC and the fibrous skeleton are precipitated by different mechanisms, which are controlled by specialized domains of the calicoblastic cell-layer. Biological processes control the composition of the skeleton even at the ultra-structure level.
Allemand Denis
Constantz Brent
Cuif Jean-Pierre
Dauphin Yannicke
Domart-Coulon Isabelle
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