Chemical characteristics of the ice cores obtained after the first unsealing of subglacial Lake Vostok

  title={Chemical characteristics of the ice cores obtained after the first unsealing of subglacial Lake Vostok},
  author={Irina A Alekhina and Alexey A. Ekaykin and Alexey Moskvin and Vladimir Ya. Lipenkov},
  journal={Special Publications},
  pages={187 - 196}
Abstract Drilling fluid (DF) is one of the main sources of chemical and biological contamination of deep ice cores and lake water samples in the exploration of Subgalcial Antarctic Lake Environments (SALE). In this study, we investigated the contamination of an ice core that represented the first samples of refrozen lake water obtained 1 year after the unsealing of Lake Vostok in 2012. We show that these samples contain inclusions of the DF with a concentration of at least 16.7 mg l−1 (0.0019… Expand

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