[M-IS08] 地球掘削科学

[MIS08-P03] 可搬型パーカッションピストンコアラーの開発

*菅沼 悠介^1,2、香月 興太³、金田 平太郎⁴、川又 基人²、田邊 優貴子^1,2、柴田 大輔⁵ (1.国立極地研究所、2.総合研究大学院大学・極域科学専攻、3.島根大学エスチュアリー研究センター、4.千葉大学大学院理学研究科地球科学コース、5.筑波大学下田臨海実験センター)

キーワード：過般型パーカッションピストンコアラー、湖沼堆積物、浅海堆積物

We developed a new portable percussion piston corer for lake and shallow marine sediment coring from a frozen ice surface. This corer is less than 100 kg in total and can be separated into individual components. Therefore, it can be carried to extreme environments such as Antarctica and high mountains, where an application of mechanical drilling is nearly impossible. The percussion coring enables us to obtain relatively coarse and hard sediments down to the basement. The main body of the corer is composed of a transparent polycarbonate pipe, which makes it easy to check length and facies of the cored sediments. The polycarbonate pipe is also suitable for preservation of the sediment and easy to replace for subsequent coring. Overall, this new corer has advantages for lake/marine sediment coring in extreme (cold) environments, and may be applied to a wide range of geoscience fields.