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

作者：Yang, Zhongkang; Long, Nanye; Wang, Yuhong; Zhou, Xin; Liu, Yi; Sun, Liguang^*

来源：Journal of Earth System Science, 2017, 126(1): 7.

DOI：10.1007/s12040-016-0790-y

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

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 end-members (coral sand, guano and plants), and their likely sources include terrigenous dust and volcanic ash. At 61 cm (similar to 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.

• 出版日期2017-2
• 单位中国科学技术大学