A great volcanic eruption around AD 1300 recorded in lacustrine sediment from Dongdao Island, South China Sea

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• 作者：ZHONGKANG YANG ; NANYE LONG ; YUHONG WANG ; XIN ZHOU…
• 关键词：South China Sea ; element analysis ; Sr and Nd isotope compositions ; volcanic ash ; AD 1257 Samalas
• 刊名：Journal of Earth System Science
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：126
• 期：1
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth Sciences, general; Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics);
• 出版者：Springer India
• ISSN：0973-774X
• 卷排序：126

文摘

The contents of Ti, Al and Fe ₂O₃ 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 end-members (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 Fe ₂O₃ 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.