在东南极洲Dome A进行深度800米的冰芯钻探

IF 2.5 4区地球科学 Q2 GEOGRAPHY, PHYSICAL

Annals of Glaciology Pub Date : 2021-04-05 DOI:10.1017/aog.2021.2

Zhengyi Hu, G. Shi, P. Talalay, Yuansheng Li, Xiaopeng Fan, C. An, Nan Zhang, Chuanjin Li, Ke Liu, Jinhai Yu, Cheng Yang, B. Li, Bowen Liu, T. Ma

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引用次数: 4

摘要

2012年1月，在南极洲东部的南极高原Dome A钻取了一个深冰芯，开始安装套管，2017年1月达到800.8 m。迄今为止，共进行了337次成功的冰芯钻井，其中118次钻导孔。总钻井时间为52天，其中先导孔钻孔和扩孔8天，深冰取心44天。导孔钻孔和深冰取心单趟平均钻深分别为1 m和3.1 m。在650 ~ 800 m的脆性区，冰芯的质量不理想。本文讨论了一些遇到的问题，如铠装电缆打结、螺丝掉入孔底、零件损坏等，以供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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

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.

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来源期刊

Annals of Glaciology GEOGRAPHY, PHYSICAL-GEOSCIENCES, MULTIDISCIPLINARY

CiteScore

8.20

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Annals of Glaciology publishes original scientific articles and letters in selected aspects of glaciology-the study of ice. Each issue of the Annals is thematic, focussing on a specific subject. The Council of the International Glaciological Society welcomes proposals for thematic issues from the glaciological community. Once a theme is approved, the Council appoints an Associate Chief Editor and a team of Scientific Editors to handle the submission, peer review and publication of papers.