Host: Abstracts of Annual Meeting of the Geochemical Society of Japan
Name : Abstracts of Annual Meeting of the Geochemical Society of Japan
Number : 70
Date : September 14, 2023 - September 24, 2023
Pages 211-
The 61st Japanese Antarctic Research Expedition conducted the sediment coring using the icebreaker Shirase for the first time. Sediment samples were collected off Totten Glacier and Lützow-Holm Bay on the East Antarctic coast. Working-half-core transported to Japan and kept in a refrigerator at the AIST for about two years. In this study, to understand records of fresh and brackish water input into the environment of marine interstitial water associated with the retreat of ice shelves.Interstitial water was extracted from the sediment samples stored for two years using a squeezer and centrifuge. The concentrations of the major ions were determined by ion chromatography. This study presents the effects of evaporation and sample alteration due to two years of storage and the effects of fresh and brackish water input into the seafloor environment due to the retreat of ice shelves along the East Antarctic coast.
