The Guliya Ice Cap, China: Retrieval and return of a 308-m ice core from 6200 m altitude

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概要

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• Drilling techniques and equipment used for retrieval and return of a 308-m ice core from a remote area of China are discussed. High resolution climatic records from remote regions of the planet are possible only if the core is continuous and of high quality. In this instance retrieval of core from over 200m below the firn ice transition required a switch of drill type from electromechanical to thermal. Working at extreme altitude and bringing the core back in a frozen state across one of the warmest regions on the planet placed additional burdens on equipment, personnel, and logistics. Solutions to these problems, improvements for future projects, and implications for retrieving continuous deep cores in regions with limited logistics are discussed.

• 国立極地研究所の論文

著者

• Zagorodnov V.

  Polar Ice Coring Office University Of Alaska Fairbanks

• Koci Bruce

  Polar Ice Coring Office University Of Alaska Fairbanks

関連論文

• Continuous study of an ice core: ECM, fine stratigraphy, air bubbles and crystals
• Effect of a heated drilling bit and borehole liquid on thermoelastic stresses in an ice core
• Drilling of glacier boreholes with a hydrophilic liquid
• Fluids for use in deep ice-core drilling
• THE AMANDA Project: Drilling precise, large-diameter holes using hot water
• The Guliya Ice Cap, China: Retrieval and return of a 308-m ice core from 6200 m altitude

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