NOAA/WDS Paleoclimatology - Jamaica Bay, Acklins Island - Sclerosponge Lead and Carbon Isotope Data

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.

本存档古气候学研究可从美国国家海洋和大气管理局（NOAA）下属的国家环境信息中心（NCEI）获取，该中心隶属于世界数据服务（WDS）古气候学分部。相关的NCEI研究类型为珊瑚研究。数据包含珊瑚和硬海绵的参数，地理范围覆盖加勒比海的巴哈马地区。时间覆盖范围为距今日历年代（BP）的226年至-33年。有关参数和研究地点的详细信息，请参见元数据。使用本数据时，请引用该研究。