| CORALS AND SCLEROSPONGES |
Jamaica Bay, Acklins Island - Sclerosponge Lead and Carbon Isotope Data
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Lazareth, C.E., P. Willenz, J. Navez, E. Keppens, F. Dehairs, and L. André. 2000. Sclerosponges as a new potential recorder
of environmental changes: Lead in Ceratoporella nicholsoni. Geology 28:515-518.
| Data Coverage |
North: 22.3 * South: 22.3 |
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West: -74.23 * East: -74.23 |
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Altitude: -30 m |
Start Year: 1724 AD
End Year: 1983 AD
Data: Please Cite Data Contributors!
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Summary: Lead concentrations have been analyzed on a 223 yr profile through the aragonitic skeleton of the reef-building Caribbean
sclerosponge Ceratoporella nicholsoni by using laser-ablation inductively coupled plasma–mass spectrometry. A parallel study
of the d13C distribution in the skeleton validates the previously established mean annual growth rate of 230 µm/yr, at least
for long-term important environmental changes. The Pb trend in the specimen displays a general increase from 0.30 ppm ca.
A.D. 1760 to 2.15 ppm ca. A.D. 1984; a major threefold increase occurred after 1930. This Pb profile is analogous to results
acquired from ice or coral cores and clearly highlights the potential of sclerosponges as a new proxy of environmental changes
for time series extending over several centuries.
More Info on Corals and Sclerosponges |
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Parameters: Pb; del13C
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Complete XML Record: noaa-coral-1896 (Last Revised: 2007-09-05 )
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DOC/NOAA/NESDIS/NCDC (National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce )
325 Broadway, E/CC23
Boulder, CO 80305
USA
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| http://www.ncdc.noaa.gov/paleo/ |
| E-mail: bruce.a.bauer@noaa.gov |
| E-mail: paleo@noaa.gov |
Phone: 303-497-6280
Fax: 303-497-6513
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