Borehole logging device at Dome F, Antarctica

• Main Authors: Naruse, Renji, Shinbori, Kunio, Azuma, Nobuhiko, Saito, Hideharu, Nagatuka, Masaki
• Language: English
• Published: 1994
• Subjects: Dome F; Antarc*; Antarctica; Ice Sheet; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/record/2229/files/KJ00000012782.pdf; https://nipr.repo.nii.ac.jp/records/2229

P(論文) A borehole logging device is newly developed for deep drilling to start from 1995 at Dome F, Antarctica. The device is designed to measure the diameter, inclination and azimuth of a hole, ice temperature and fluid pressure. A logging sonde, 2.35m in length and 114mm in diameter, has two sets of stabilizers and a caliper with three contact points. The possible range of measurement is from 130 to 170mm in hole diameter. The data are transmitted by a microprocessor mounted in the sonde to a personal computer at the ice sheet surface. departmental bulletin paper