[P-EM12] Space Weather and Space Climate

[PEM12-P11] Examination of ¹⁰Be in travertine sediment as a possible tool to reconstruct past solar activity II

*Hongyang Xu^1,2、Hiroko Miyahara²、Kazuho Horiuchi³、Hiroyuki Matsuzaki⁴、Hailong Sun⁵、Weijun Luo⁵、Xiangmin Zheng¹、Yusuke Suganuma^6,7、Shijie Wang⁵、Limin Zhou¹ (1.East China Normal University、2.Musashino Art University、3.Hirosaki University、4.University of Tokyo、5.Chinese Academy of Sciences、6.National Institute of Polar Research、7.The Graduate University for Advanced Studies (SOKENDAI))

キーワード：Beryllium-10, cosmogenic nuclide, solar activity, endogenic travertine

We have been examining the potential of ¹⁰Be in travertine sediment as a tool to reconstruct past solar and cosmic-ray variations. In this paper, we compare the ¹⁰Be profile in the travertine layers from the rainy and dry seasons, and discuss the nature of ¹⁰Be deposition at the two seasons.