Microstructure mapping, Raman, Visual Stratigraphy and SEM measurements of the EGRIP and EDML ice core ...

• Main Authors: Stoll, Nicolas, Weikusat, Ilka
• Format: Dataset
• Language: English
• Published: PANGAEA 2020
• Subjects: cloudy bands; EDML; EGRIP; Ice core; impurities; Microstructure mapping; Raman; SEM; Event label; DEPTH, ice/snow; Binary Object; EPICA drill; Ice drill; EPICA-Campaigns; Kohnen Station; Greenland; Kohnen; East Greenland; East Greenland Ice-core Project; EPICA; Greenland ice core; Greenland Ice core Project; ice core
• Online Access: https://dx.doi.org/10.1594/pangaea.924849; https://doi.pangaea.de/10.1594/PANGAEA.924849

Insoluble and soluble impurities, enclosed in polar ice sheets, have a major impact on the deformation behaviour of the ice. Large-, Macro and Micro-scale deformation observed in ice cores has been retraced to impurities in the ice, and therefore the exact location of the impurities is important. Over the years different techniques have been developed to analyse the location, and chemistry, of impurities and the following figures are examples of general methodological concepts.1_cloudy_bands_details.jpg displays a sample from a depth of 1917 m from the East Greenland Ice Core Project (EGRIP) deep ice core, NE-Greenland; the drilling has started in 2016 and is still on-going. A) shows a Visual Stratigraphy image, which was taken in June 2019 by Nicolas Stoll at the EGRIP drill site. It shows cloudy bands and the stratigraphy of the ice sample, covering a few years of age, and is used to count annual layers, and to derive information about the deformation of ice. B) and C) are microstructure maps of the same ...