Non-destructive analysis and lithological descriptions of sediment cores from Lake Nurume, Langhovde in Lützow-Holm Bay

• Format: Article in Journal/Newspaper
• Language: English
• Published: National Institute of Polar Research 2022
• Subjects: Antarctica; lake; sediments; non-destructive analysis; Antarc*; Antarctic; East Antarctica; Ice Sheet
• Online Access: http://id.nii.ac.jp/1434/00000043/; https://pdr.repo.nii.ac.jp/?action=repository_uri&item_id=58; https://pdr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=58&item_no=1&attribute_id=22&file_no=1; https://pdr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=58&item_no=1&attribute_id=22&file_no=2; https://pdr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=58&item_no=1&attribute_id=22&file_no=3

Antarctica's lake sediments are valuable geological archives for paleoenvironmental reconstructions of sea level and ice sheet change. It is essential to proceed with an analysis of cores from several locations in one lake to reconstruct detailed environmental changes. In the geomorphological survey of the 61st Japanese Antarctic Research Expedition, we collected four sediment cores in Lake Nurume, located at Langhovde in Lützow-Holm Bay, East Antarctica. We present preliminary results of non-destructive analysis of these cores, such as X-ray CT scanning, physical properties, and visual core descriptions. The obtained results combined with geomorphological settings and model simulations, will provide insight into the potential of these cores for paleoenvironmental reconstructions in Antarctica.