Biogenic Sulfur in the Siple Dome Ice Core

This data set is a continuous, high-resolution record of biogenic sulfur (methanesulfonate, known as MSA and CH3SO3-) in the 1000 m deep Siple Dome A (SDMA) core, covering 100,000 to 20 years BP. The analysis was done on between August 2002 and November 2003 at the University of California, Irvine. Investigators used a mass spectrometer to measure methanesulfonate. Measurements are given as MSA concentration at various depths. Estimated age of the ice at each depth is also given.

This project was a part of the West Antarctic Ice Sheet Cores (WAISCORES) project for deep ice coring in West Antarctica. WAISCORES is supported by the Office of Polar Programs, National Science Foundation (NSF).

本数据集为取自1000米深锡普尔穹顶A（Siple Dome A，SDMA）冰芯的生物源硫连续高分辨率记录，目标物为甲磺酸（methanesulfonate，即MSA与CH3SO3-），时间跨度为距今10万年至20年。本分析工作于2002年8月至2003年11月间在美国加州大学欧文分校开展，研究人员采用质谱仪对甲磺酸进行定量检测，检测结果以各冰深对应的甲磺酸浓度形式给出，同时还提供了各冰深处冰层的估算年代。

本项目为南极西部冰盖冰芯（West Antarctic Ice Sheet Cores, WAISCORES）计划的组成部分，该计划旨在开展南极深部冰芯钻探工作。WAISCORES由美国国家科学基金会（National Science Foundation, NSF）极地项目办公室资助。