The SUBGLACIOR drilling probe: concept and design
The SUBGLACIOR drilling probe: concept and design
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DOI：
10.3189/2014aog68a026
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发表时间：
2015-04
影响因子：
2.9
通讯作者：
O. Alemany;J. Chappellaz;J. Triest;M. Calzas;O. Cattani;J. Chemin;Q. Desbois;T. Desbois;R. Duphil;S. Falourd;R. Grilli;C. Guillerme;E. Kerstel;B. Laurent;E. Lefebvre;N. Marrocco;O. Pascual;L. Piard;P. Possenti;D. Romanini;V. Thiébaut;R. Yamani
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作者：
O. Alemany;J. Chappellaz;J. Triest;M. Calzas;O. Cattani;J. Chemin;Q. Desbois;T. Desbois;R. Duphil;S. Falourd;R. Grilli;C. Guillerme;E. Kerstel;B. Laurent;E. Lefebvre;N. Marrocco;O. Pascual;L. Piard;P. Possenti;D. Romanini;V. Thiébaut;R. Yamani
为了应对国际冰芯科学伙伴关系（IPICS）发起的“最古老的冰”挑战，需要开发新的冰川快速钻探技术。这些将提供必要的信息，以确定南极冰盖上的潜在地点，在那里，最深处的部分可能包含有100万年历史的冰，并且仍然处于良好的地层秩序。为了阐明中更新世从40 ka冰期-间冰期旋回向100 ka冰期旋回转变的原因和机制，确定一个合适的地点将是开展多年深冰芯钻探作业的先决条件。作为冰与激光/SUBGLACIOR项目的一部分，我们设计了一个创新的探测器SUBGLACIOR，其目的是在一个季节内穿透冰盖直至基岩，并在现场连续测量融化水的同位素组成和被困气体中的甲烷浓度。在这里，我们提出了探测器的一般概念，以及我们迄今为止赞成的各种技术解决方案，以实现这一目标。
Abstract In response to the ‘oldest ice’ challenge initiated by the International Partnerships in Ice Core Sciences (IPICS), new rapid-access drilling technologies through glacier ice need to be developed. These will provide the information needed to qualify potential sites on the Antarctic ice sheet where the deepest section could include ice that is >1Ma old and still in good stratigraphic order. Identifying a suitable site will be a prerequisite for deploying a multi-year deep ice-core drilling operation to elucidate the cause and mechanisms of the mid-Pleistocene transition from 40 ka glacial–interglacial cycles to 100 ka cycles. As part of the ICE&LASERS/SUBGLACIOR projects, we have designed an innovative probe, SUBGLACIOR, with the aim of perforating the ice sheet down to the bedrock in a single season and continuously measuring in situ the isotopic composition of the melted water and the methane concentration in trapped gases. Here we present the general concept of the probe, as well as the various technological solutions that we have favored so far to reach this goal.