Jamaica Bay, Acklins Island - Sclerosponge Lead and Carbon Isotope Data Lazareth, C.E.; Willenz, P.; Navez, J.; Keppens, E.; Dehairs, F.; André, L. Lazareth, C.E. Willenz, P. Navez, J. Keppens, E. Dehairs, F. André, L. earth science/paleoclimate/corals and sclerosponges (age,null,null,year Common Era,null,corals and sclerosponges,null,null,N,null) earth science/paleoclimate/corals and sclerosponges (delta 13C,Ceratoporella nicholsoni,null,per mil VPDB,null,corals and sclerosponges,smoothed,isotope ratio mass spectrometry,N,smoothed with 3 point running mean) earth science/paleoclimate/corals and sclerosponges (lead,Ceratoporella nicholsoni,null,parts per million,null,corals and sclerosponges,smoothed,inductively-coupled plasma mass spectrometry|laser ablation,N,smoothed with 3 point running mean) earth science/paleoclimate/corals and sclerosponges earth science/paleoclimate/corals and sclerosponges (Jamaica Bay, Acklins Island>LATITUDE 22.3>LONGITUDE -74.23) 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 plasmaŋmass spectrometry. A parallel study of the d13C distribution in the skeleton validates the previously established mean annual growth rate of 230 ĩm/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. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Lazareth, C.E. Investigator : Willenz, P. Investigator : Navez, J. Investigator : Keppens, E. Investigator : Dehairs, F. Investigator : André, L. 2000-07-01 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/1896 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/atlantic/lazareth2000-d13c_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/atlantic/lazareth2000-pb_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/atlantic/lazareth2000-d13c_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/atlantic/lazareth2000-pb_noaa.txt English https://www.ncdc.noaa.gov/paleo/study/1896 https://www1.ncdc.noaa.gov/pub/data/paleo/coral/atlantic/lazareth2000-d13c_noaa.txt https://www1.ncdc.noaa.gov/pub/data/paleo/coral/atlantic/lazareth2000-pb_noaa.txt 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. START YEAR: 1724 AD * END YEAR: 1983 AD -74.23 22.3 -74.23 22.3