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Weikusat, Ilka; Stoll, Nicolas; Kerch, Johanna; Eichler, Jan; Jansen, Daniela; Kipfstuhl, Sepp (2023): Grain size section mean data between 1340-2121 m of the EGRIP ice core derived with the Fabric Analyzer G50 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.957032

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Abstract:
Mean ice grain size and crystal-preferred orientation data was obtained from vertical thin sections (ca. 6.7 x 9 cm²) of the East Greenland Ice Core Project (EGRIP) ice core to analyze the microstructural evolution and internal deformation with depth. Vertical ice thin sections were prepared and measured with the Fabric Analyzer G50 (resolution: 20 μm/pixel) in the field at the EGRIP site in the summer seasons between 2018 and 2019, and at the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research. 55 cm long sample were cut into six thin sections and used to calculate mean grain size values for these 9 cm long sections with the program cAxes between 1340 and 2121 m of depth. The stated depths of the section represent the top, center, and bottom of the section.
Keyword(s):
EGRIP; Fabric Analyser; Grain Size; Grain size data; Greenland; Ice core; microstructure
Supplement to:
Stoll, Nicolas; Westhoff, Julien; Bohleber, Pascal; Svensson, Anders M; Dahl-Jensen, Dorthe; Barbante, Carlo; Weikusat, Ilka (in review): Chemical and visual characterisation of EGRIP glacial ice and cloudy bands within. https://doi.org/10.5194/tc-2022-250
Related to:
Stoll, Nicolas; Eichler, Jan; Hörhold, Maria; Erhardt, Tobias; Jensen, Camilla Marie; Weikusat, Ilka (2021): Microstructure, micro-inclusions, and mineralogy along the EGRIP ice core – Part 1: Localisation of inclusions and deformation patterns. The Cryosphere, 15(12), 5717-5737, https://doi.org/10.5194/tc-15-5717-2021
Coverage:
Latitude: 75.630000 * Longitude: -35.980000
Minimum DEPTH, ice/snow: 1344.80 m * Maximum DEPTH, ice/snow: 2120.80 m
Event(s):
EGRIP (EastGRIP) * Latitude: 75.630000 * Longitude: -35.980000 * Location: Greenland * Method/Device: Ice drill (ICEDRILL)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Bag numberBagStoll, Nicolas
SectionSectStoll, Nicolas
Depth, ice/snow, top/minimumDepth ice/snow topmStoll, Nicolas
Depth, ice/snow, bottom/maximumDepth ice/snow botmStoll, Nicolas
DEPTH, ice/snowDepth ice/snowmStoll, NicolasGeocode
GrainsGrains#Stoll, Nicolas
Grain size, meanGrain size meanpixelStoll, Nicolas
Grain area, meanGrain areamm2Stoll, Nicolas
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2814 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Bag

Sect

Depth ice/snow top [m]

Depth ice/snow bot [m]

Depth ice/snow [m]

Grains [#]

Grain size mean [pixel]

Grain area [mm2]
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