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GEOPHYSICAL RESEARCH LETTERS,
VOL. 33,
L11608,
doi:10.1029/2006GL025968,
2006
Vital effects in coral skeletal composition display strict three-dimensional control
Anders Meibom
Laboratoire d'Etude de la Matiere Extraterrestre USM 0205 (LEME), Museum National d'Histoire Naturelle, Paris, France
Hiyayoshi Yurimoto
Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Tokyo, Japan
Jean-Pierre Cuif
UMR 8148/IDES Geologie, Bât. 504, Faculté des sciences, Université Paris Sud 11, Orsay, France
Isabelle Domart-Coulon
Département Milieux et Peuplements Aquatiques, Muséum National d'Histoire Naturelle, Paris, France
Fanny Houlbreque
Department of Geological and Environmental Sciences, Stanford University, Stanford, California, USA
Brent Constantz
Department of Geological and Environmental Sciences, Stanford University, Stanford, California, USA
Yannicke Dauphin
UMR 8148/IDES Geologie, Bât. 504, Faculté des sciences, Université Paris Sud 11, Orsay, France
E. Tambutté
Centre Scientifique de Monaco, Monaco
Sylvie Tambutté
Centre Scientifique de Monaco, Monaco
Denis Allemand
Centre Scientifique de Monaco, Monaco
Joseph Wooden
U. S. Geological Survey, Menlo Park, California, USA
Robert Dunbar
Department of Geological and Environmental Sciences, Stanford University, Stanford, California, USA
Abstract
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.
Received 6
February
2006;
accepted 1
May
2006;
published 9
June
2006.
Index Terms: 0419 Biogeosciences: Biomineralization; 0424 Biogeosciences: Biosignatures and proxies; 0473 Biogeosciences: Paleoclimatology and paleoceanography (3344, 4900); 4954 Paleoceanography: Sea surface temperature.
Read Full Article (file size: 613762 bytes) Cited by
Citation: Meibom, A., et al.
(2006),
Vital effects in coral skeletal composition display strict three-dimensional control,
Geophys. Res. Lett.,
33,
L11608,
doi:10.1029/2006GL025968.
Copyright 2006 by the American Geophysical Union.
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