Weikusat, Ilka; Stoll, Nicolas; Franke, Steven; Wallis, David; Jansen, Daniela; Kerch, Johanna (2022): C-axis distribution (68m of depth) directly measured in SE Shear Margin of NEGIS - Shallow core [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.945806
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Abstract:
Observational fabric (c-axis distribution) data was retrieved from a shallow firn core on the southeast shear margin of NEGIS called S5. The preparation and measurement of the samples follow the principles as described by Weikusat rt al. (2017). All analysed samples are vertical to the ice core axis and have dimensions of about 90 x 70 x 0.3 mm. The sample surfaces were carefully polished with a microtome in the EGRIP trench at -18 °C. After one hour of controlled sublimation, c-axes were measured with an automated fabric analyser by Russel-Head Instruments (FA G50). The data was background corrected before processing, and the Crystal preferred orientation CPO was derived via digital image processing. We here show data of three S5 shallow core samples from a depth of 68 m.
Further details:
Weikusat, Ilka; Jansen, Daniela; Binder, Tobias; Eichler, Jan; Faria, Sérgio H; Wilhelms, Frank; Kipfstuhl, Sepp; Miller, Heinrich; Dahl-Jensen, Dorthe; Kleiner, Thomas (2017): Physical analysis of an Antarctic ice core—towards an integration of micro- and macrodynamics of polar ice. Philosophical Transactions of the Royal Society of London Series A-Mathematical and Physical Sciences, 375(2086), 20150347, https://doi.org/10.1098/rsta.2015.0347
Project(s):
East Greenland Ice-core Project (EGRIP)
Funding:
Coverage:
Latitude: 75.541301 * Longitude: -35.641492
Minimum DEPTH, ice/snow: 67.65 m * Maximum DEPTH, ice/snow: 67.83 m
Event(s):
Comment:
File description:
txt:
• c-axis orientations
• azimuth : [°] angle from logger's mark, a continuous line on the core, representing this relative orientation
• latitude : [°] angle from horizontal
png: stereographic projections
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, ice/snow | Depth ice/snow | m | Weikusat, Ilka | Geocode – top depth | |
| 2 | Image | IMAGE | Weikusat, Ilka | |||
| 3 | Text file | TEXT | Weikusat, Ilka |
License:
Creative Commons Attribution-ShareAlike 4.0 International (CC-BY-SA-4.0)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
6 data points