Computer Science
Scientific paper
Jan 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977gecoa..41..169l&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 41, Issue 1, pp.169-172
Computer Science
8
Scientific paper
The C 13 and O 18 values of skeletons of shallow water, ahermatypic scleractinian corals from Jamaica show an excellent correlation over a wide range of isotopic composition. Within individual specimens there are large differences in the isotopic composition of separate skeletal elements. Some of these ahermatypes are enriched in O 18 relative to equilibrium precipitates of calcium carbonate from Jamaican sea water. Therefore our data do not support a two-reservoir mixing model for calcification if one of these reservoirs consists of dissolved marine (inorganic) bicarbonate. As some of these ahermatypic species are enriched in both C 13 and O 18 relative to hermatypic corals from the same reefs, calcification models based on withdrawal of metabolic CO 2 by photosynthesizing zooxanthellae must also be modified.
Barnes David J.
Land Lynton S.
Lang Judith C.
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