JpGU-AGU Joint Meeting 2017

講演情報

[EE]Eveningポスター発表

セッション記号 P (宇宙惑星科学) » P-EM 太陽地球系科学・宇宙電磁気学・宇宙環境

[P-EM12] [EE] Space Weather, Space Climate, VarSITI

2017年5月23日(火) 17:15 〜 18:30 ポスター会場 (国際展示場 7ホール)

[PEM12-P19] Cosmogenic 10Be in endogenic travertine deposits at Baishuitai, China: A pilot study

*宮原 ひろ子1坂下 渉1堀内 一穂2周 立旻3徐 洪阳3松崎 浩之4 (1.武蔵野美術大学、2.弘前大学、3.華東師範大学、4.東京大学)

キーワード:Cosmogenic nuclide, Solar cycle, Travertine deposit

We report on the preliminary experiment for measurement of beryllium-10 in travertine samples from Baisuitai, China. Beryllium-10 is one of the cosmic-ray induced isotopes and thus can be used as a proxy for the flux of galactic cosmic rays incident on the Earth. For example, the content of beryllium-10 in ice cores from polar region is often used for examining the past cosmic ray flux and solar variations. However, the data from ice cores is often accompanied by dating uncertainty. In this study, we seek for the possibility to use travertine which has recognizable annual layers.