Deep ice-core drilling to 800 m at Dome A in East Antarctica

Title Deep ice-core drilling to 800 m at Dome A in East Antarctica
Publication Type
Journal Article
Year
2021
Author(s) Zhengyi Hu , Guitao Shi, Pavel Talalay, Yuansheng Li, Xiaopeng Fan, Chunlei An, Nan Zhang, Chuanjin Li, Ke Liu, Jinhai Yu, Cheng Yang, Bing Li, Bowen Liu, Tianming Ma
Journal/ Publication
Annals of Glaciology
Pagination
1-12
Abstract

A deep ice core was drilled at Dome A, Antarctic Plateau, East Antarctica, which started with the installation of a casing in January 2012 and reached 800.8 m in January 2017. To date, a total of 337 successful ice-core drilling runs have been conducted, including 118 runs to drill the pilot hole. The total drilling time was 52 days, of which eight days were required for drilling down and reaming the pilot hole, and 44 days for deep ice coring. The average penetration depths of individual runs were 1 and 3.1 m for the pilot hole drilling and deep ice coring, respectively. The quality of the ice cores was imperfect in the brittle zone (650−800 m). Some of the troubles encountered are discussed for reference, such as armoured cable knotting, screws falling into the hole bottom, and damaged parts, among others.

DOI
10.1017/aog.2021.2
File
URL
Special Collections International Workshop on Ice Drilling Technology Series, 8th International Ice Drill Symposium
Categories Deep Drilling
Equipment JARE drills
Citation Zhengyi Hu , Guitao Shi, Pavel Talalay, Yuansheng Li, Xiaopeng Fan, Chunlei An, Nan Zhang, Chuanjin Li, Ke Liu, Jinhai Yu, Cheng Yang, Bing Li, Bowen Liu, Tianming Ma ( 2021 ) Deep ice-core drilling to 800 m at Dome A in East Antarctica. Annals of Glaciology , 1-12 . doi: 10.1017/aog.2021.2
Lead Author
Zhengyi Hu