On the contraction of borehole at Mizuho Station, East Antarctica

• Main Authors: Tatsuo Hasemi, Akiyoshi Takahashi, Koichi Ikegami, Yoichi Tanaka
• Format: Report
• Language: English
• Published: Institute of Geo-Technology/Institute of Geo-Technology/Institute of Geo-Technology/Institute of Geo-Technology 1985
• Subjects: East Antarctica; Mizuho; Mizuho Plateau; Mizuho Station; Paterson; Antarc*; Antarctica; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1845; http://id.nii.ac.jp/1291/00001845/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1845&item_no=1&attribute_id=18&file_no=1

Changes of borehole diameters at different depths down to 400m were estimated. Results are as follows : 1) Applying the flow law which was deduced from borehole closure observations by PATERSON (Rev. Geophys. Space Phys., 15,47,1977), the tertiary creep will start after about half of a year and the...