首页|Changes of the trace metals in ice core during 1915-2016 in coastal eastern Antarctica

Changes of the trace metals in ice core during 1915-2016 in coastal eastern Antarctica

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
Antarctic trace metal records provide important information for grasping the influence of human activities on the environment over the last centuries.The CA2016-75 ice core is located along the East Antarctic Zhongshan Station-Dome A,enhances the record of metals research in the East Antarctic region,and its high-resolution supplies data support for the study of high-frequency climatic drivers and the effect of human activities on the Antarctic environment.A thorough dataset on seven trace metals(Al,Fe,Mn,Cu,Zn,Ba and Pb)in a coastal ice core in eastern Antarctica during the previous 102 years(1915-2016)is presented in this study.Pb has the lowest concentration(9.51±20.95 pg g-1),and Ba has the highest concentration(36.57±51.35 ng g-1).Notable variations are observed between the pre-1968 AD and post-1968 AD phases for Mn,Zn and Ba.The abrupt,remarkable increase in the concentrations coincided with the change of metal smelting production in the southern hemisphere.In addition to this,it may also be related to local Antarctic scientific research activities.Al and Fe,the primary crustal elements,are essentially obtained from soil dust;Cu shows high crustal enrichment factors(EFc,＞10),indicating that it is notably affected by anthropogenic activities.Moreover,the anthropogenic activities in the Southern Hemisphere have had an impact on lead deposition in Antarctica.This study not only enriches the trace metal historical record along the Zhongshan Station-Dome A but also provides a high-resolution ice core record,which is very crucial for the reconstruction of trace metal concentration changes in the last 100 years.

Eastern AntarcticaIce coreTrace metalsHuman activities

Jing-Wen LIU、Chuan-Jin LI、Gui-Tao SHI、Yan LIU、Zhi-Heng DU、Ming-Hu DING、Shao-Peng GAO、Cun-De XIAO、Shi-Chang KANG、Bo SUN

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State Key Laboratory of the Cryosphere Science,Northwest Institute of the Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China

University of Chinese Academy of Sciences,Beijing 100049,China

Key Laboratory for Polar Science of State Oceanic Administration,Polar Research Institute of China,Shanghai 200136,China

Key Laboratory of Geographic Information Science(Ministry of Education),School of Geographic Sciences and Institute of Eco-Chongming,East China Normal University,Shanghai 200241,China

Institute of Tibetan Plateau and Polar Regions Meteorology,Chinese Academy of Meteorological Sciences,Beijing 100081,China

Key Laboratory of Tibetan Environment Changes and Land Surface Processes,Institute of the Tibetan Plateau,Chinese Academy of Sciences,Beijing 100101,China

State Key Laboratory of Earth Surface Processes and Resource Ecology,Beijing Normal University,Beijing,100875,China

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2024

10.1016/j.accre.2024.07.003

气候变化研究进展(英文版)
国家气候中心

气候变化研究进展(英文版)

影响因子：0.806
ISSN：1674-9278
年,卷(期)：2024.15(4)