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      https://www.ias.ac.in/article/fulltext/jess/126/01/0007

    • Keywords

       

      South China Sea; element analysis; Sr and Nd isotope compositions; volcanic ash; AD 1257 Samalas.

    • Abstract

       

      The contents of Ti, Al and Fe₂O₃ in a lacustrine sediment core (DY6) collected from Dongdao Island, South China Sea (SCS), were determined to be much higher than those in the three major sediment endmembers (coral sand, guano and plants), and their likely sources include terrigenous dust and volcanic ash. At 61 cm (~AD 1300), the contents of Ti, Al and Fe₂O₃ have an abnormally high spike, which cannot be explained by terrigenous dust. The Sr and Nd isotope compositions at 61 cm are in excellent agreement with those in volcanic materials, but they are significantly different from those in terrigenous dust, implying a possible material input from historical volcanic eruptions in the lacustrine sediment DY6. The documented great Samalas volcanic eruption at AD 1257 in Indonesia is likely the candidate for this volcanic eruption.

    • Author Affiliations

       

      Zhongkang Yang1 Nanye Long1 Yuhong Wang1 Xin Zhou1 Yi Liu2 Liguang Sun1

      1. Institute of Polar Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China.
      2. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, People’s Republic of China.
    • Dates

       
  • Journal of Earth System Science | News

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