Vostok Subglacial Lake: Details of Russian Plans/Activities for Drilling and Sampling
Vostok Subglacial Lake: Details of Russian Plans/Activities for Drilling and Sampling
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东方冰下湖：俄罗斯钻探和采样计划/活动的详细信息
DOI：
10.1002/9781118670354.ch11
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发表时间：
2013
期刊：
影响因子：
64.8
通讯作者：
S. Bulat
中科院分区：
文献类型：
--
作者：
V. Lukin;S. Bulat
俄罗斯联邦制定了一个国家项目，对东南极洲的沃斯托克冰下湖进行钻探和取样。目的是探索这个极端的冰冷环境，使用各种技术来识别那里存在的生命形式和水平。该项目由俄罗斯联邦服务ROSHYDROMET资助。在2009/2010年度，通过新钻孔5G-2在3559米深度重新开始钻井作业，成功达到约3650米的新深度。新的吸积冰，包括内含物丰富的“含嗜热”的地平线（约3608米）再次恢复，并将进行研究，以评估以前的情况和调查结果。在2010/2011年，钻探将继续小心地加深钻孔，留下10至15米的冰栓，并将在2011/2012年进入湖泊，使水在钻孔5G-2内上升数十米，随后冻结。在同一季节或随后的季节（2012/2013年），将重新钻探5G-2钻孔，以获取快速冻结的湖水，用于复杂的调查。在接下来的2013/2014年季节，彼得堡核物理研究所开发的一套经过严格净化的生物物理仪器将被放入水体，其中包括一组海洋观测传感器、摄像机、荧光计-光谱仪和几个潜水泰坦模块上的特殊水取样器。这些活动符合探索南极冰盖下独特水生环境的环境管理工作。
The Russian Federation has developed a national project involving the drilling and sampling of Vostok Subglacial Lake, East Antarctica. The objective is to explore this extreme icy environment, using a variety of techniques to identify the forms and levels of life that exist there. The project is funded by the Russian Federal Service ROSHYDROMET. In the 2009/2010 season, drilling operations were restarted at a depth of 3559 m via new borehole 5G-2, successfully reaching a new depth of approximately 3650 m. New accretion ice, including the inclusion-rich “thermophile-containing” horizon (around 3608 m) was again recovered and will be studied to assess the previous scenario and findings. In 2010/2011, the drill will carefully continue to deepen the borehole leaving a 10-to 15-m ice cork and will in season 2011/2012 enter the lake, allowing water to rise up dozens of meters within borehole 5G-2 and subsequently freeze. During the same or following season (2012/2013), borehole 5G-2 will be redrilled to acquire rapidly frozen lake water for complex investigations. In the following season, 2013/2014, a special set of strictly decontaminated biophysical instruments, developed at the Petersburg Nuclear Physics Institute, will be lowered into the water body, with a battery of ocean observatory sensors, cameras, fluorimeters-spectrometers, and special water samplers on board several submersible titan modules. Such activities are in line with environmental stewardship in the exploration of unique aquatic environments under the Antarctic ice sheet.