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Andrews, John T; Stein, Ruediger; Moros, Matthias; Perner, Kerstin (2016): Sediment composition in NE Greenland Fjords, Shelf, and Slope. PANGAEA, https://doi.org/10.1594/PANGAEA.848769, Supplement to: Andrews, JT et al. (2016): Late Quaternary changes in sediment composition on the NE Greenland margin (~73° N) with a focus on the fjords and shelf. Boreas, https://doi.org/10.1111/bor.12169

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Abstract:
In order to document changes in Holocene glacier extent and activity in NE Greenland (~73° N) we study marine sediment records that extend from the fjords (PS2631 and PS2640), across the shelf (PS2623 and PS2641), to the Greenland Sea (JM07-174GC). The primary bedrock geology of the source areas is the Caledonian sediment outcrop, including Devonian red beds, plus early Neoproterozoic gneisses and early Tertiary volcanics. We examine the variations in colour (CIE*), grain size, and bulk mineralogy (from X-ray diffraction of the <2 mm sediment fraction). Fjord core PS2640 in Sofia Sund, with a marked red hue, is distinct in grain size, colour and mineralogy from the other fjord and shelf cores. Five distinct grain-size modes are distinguished of which only one is associated with a coarse ice-rafting signal - this mode is rare in the mid- and late Holocene. A sediment unmixing program (SedUnMixMC) is used to characterize down-core changes in sediment composition based on the upper late Holocene sediments from cores PS2640 (Sofia Sund), PS2631 (Kaiser Franz Joseph Fjord) and PS2623 (south of Shannon Is), and surface samples from the Kara Sea (as an indicator of transport from the Russian Arctic shelves). Major changes in mineral composition are noted in all cores with possible coeval shifts centred c. 2.5, 4.5 and 7.5 cal. ka BP (±0.5 ka) but are rarely linked with changes in the grain-size spectra. Coarse IRD (>2 mm) and IRD-grain-size spectra are rare in the last 9-10 cal. ka BP and, in contrast with areas farther south (~68° N), there is no distinct IRD signal at the onset of neoglaciation. Our paper demonstrates the importance of the quantitative analysis of sediment properties in clarifying source to sink changes in glacial marine environments.
Coverage:
Median Latitude: 73.413120 * Median Longitude: -19.122000 * South-bound Latitude: 73.073330 * West-bound Longitude: -23.331660 * North-bound Latitude: 74.856660 * East-bound Longitude: -14.568200
Date/Time Start: 1994-08-28T16:54:00 * Date/Time End: 2007-10-08T00:00:00
Size:
34 datasets

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Datasets listed in this publication series

  1. Andrews, JT; Stein, R; Moros, M et al. (2016): Age determination of sediment core JM07-WP-174-GC. https://doi.org/10.1594/PANGAEA.848736
  2. Andrews, JT; Stein, R; Moros, M et al. (2016): Age determination of sediment core PS2631-5. https://doi.org/10.1594/PANGAEA.848737
  3. Andrews, JT; Stein, R; Moros, M et al. (2016): Age determination of sediment core PS2640-6. https://doi.org/10.1594/PANGAEA.848738
  4. Andrews, JT; Stein, R; Moros, M et al. (2016): Color measurements on sediment core PS2623-4. https://doi.org/10.1594/PANGAEA.848739
  5. Andrews, JT; Stein, R; Moros, M et al. (2016): Color measurements on sediment core PS2629-2. https://doi.org/10.1594/PANGAEA.848740
  6. Andrews, JT; Stein, R; Moros, M et al. (2016): Color measurements on sediment core PS2630-5. https://doi.org/10.1594/PANGAEA.848741
  7. Andrews, JT; Stein, R; Moros, M et al. (2016): Color measurements on sediment core PS2631-5. https://doi.org/10.1594/PANGAEA.848742
  8. Andrews, JT; Stein, R; Moros, M et al. (2016): Color measurements on sediment core PS2640-6. https://doi.org/10.1594/PANGAEA.848743
  9. Andrews, JT; Stein, R; Moros, M et al. (2016): Color measurements on sediment core PS2641-4. https://doi.org/10.1594/PANGAEA.848744
  10. Andrews, JT; Stein, R; Moros, M et al. (2016): Data on the average grain-size attributes for the 5 grain-size cluster members. https://doi.org/10.1594/PANGAEA.848774
  11. Andrews, JT; Stein, R; Moros, M et al. (2016): Grain-size analysis on sediment core PS2623-4. https://doi.org/10.1594/PANGAEA.848745
  12. Andrews, JT; Stein, R; Moros, M et al. (2016): Grain-size analysis on sediment core PS2631-5. https://doi.org/10.1594/PANGAEA.848746
  13. Andrews, JT; Stein, R; Moros, M et al. (2016): Grain-size analysis on sediment core PS2640-6. https://doi.org/10.1594/PANGAEA.848747
  14. Andrews, JT; Stein, R; Moros, M et al. (2016): Grain-size analysis on sediment core PS2641-4. https://doi.org/10.1594/PANGAEA.848748
  15. Andrews, JT; Stein, R; Moros, M et al. (2016): Principal component scores on XRD logratio mineralogy (< 2 mm) of sediment core PS2641-4. https://doi.org/10.1594/PANGAEA.848764
  16. Andrews, JT; Stein, R; Moros, M et al. (2016): Principal component scores on XRD logratio mineralogy (< 63 µm) of sediment core PS2641-4. https://doi.org/10.1594/PANGAEA.848765
  17. Andrews, JT; Stein, R; Moros, M et al. (2016): Principal component scores on XRD logratio mineralogy of sediment core JM07-WP-174-GC. https://doi.org/10.1594/PANGAEA.848757
  18. Andrews, JT; Stein, R; Moros, M et al. (2016): Principal component scores on XRD logratio mineralogy of sediment core PS2623-4. https://doi.org/10.1594/PANGAEA.848758
  19. Andrews, JT; Stein, R; Moros, M et al. (2016): Principal component scores on XRD logratio mineralogy of sediment core PS2627-5. https://doi.org/10.1594/PANGAEA.848759
  20. Andrews, JT; Stein, R; Moros, M et al. (2016): Principal component scores on XRD logratio mineralogy of sediment core PS2629-2. https://doi.org/10.1594/PANGAEA.848760
  21. Andrews, JT; Stein, R; Moros, M et al. (2016): Principal component scores on XRD logratio mineralogy of sediment core PS2630-5. https://doi.org/10.1594/PANGAEA.848761
  22. Andrews, JT; Stein, R; Moros, M et al. (2016): Principal component scores on XRD logratio mineralogy of sediment core PS2631-5. https://doi.org/10.1594/PANGAEA.848762
  23. Andrews, JT; Stein, R; Moros, M et al. (2016): Principal component scores on XRD logratio mineralogy of sediment core PS2640-6. https://doi.org/10.1594/PANGAEA.848763
  24. Andrews, JT; Stein, R; Moros, M et al. (2016): Results of fuzzy clustering of the grain-size % data and the logratio data, with link to table in Excel format. https://doi.org/10.1594/PANGAEA.848766
  25. Andrews, JT; Stein, R; Moros, M et al. (2016): Results of running SedUnMixMC on the source sediments, with link to table in Excel format. https://doi.org/10.1594/PANGAEA.848767
  26. Andrews, JT; Stein, R; Moros, M et al. (2016): Results of the 4 source sediment unmixing analysis using SedUnMixMC. https://doi.org/10.1594/PANGAEA.848768
  27. Andrews, JT; Stein, R; Moros, M et al. (2016): XRD mineralogy of sediment core JM07-WP-174-GC. https://doi.org/10.1594/PANGAEA.848749
  28. Andrews, JT; Stein, R; Moros, M et al. (2016): XRD mineralogy of sediment core PS2623-4. https://doi.org/10.1594/PANGAEA.848750
  29. Andrews, JT; Stein, R; Moros, M et al. (2016): XRD mineralogy of sediment core PS2627-5. https://doi.org/10.1594/PANGAEA.848751
  30. Andrews, JT; Stein, R; Moros, M et al. (2016): XRD mineralogy of sediment core PS2629-2. https://doi.org/10.1594/PANGAEA.848752
  31. Andrews, JT; Stein, R; Moros, M et al. (2016): XRD mineralogy of sediment core PS2630-5. https://doi.org/10.1594/PANGAEA.848753
  32. Andrews, JT; Stein, R; Moros, M et al. (2016): XRD mineralogy of sediment core PS2631-5. https://doi.org/10.1594/PANGAEA.848754
  33. Andrews, JT; Stein, R; Moros, M et al. (2016): XRD mineralogy of sediment core PS2640-6. https://doi.org/10.1594/PANGAEA.848755
  34. Andrews, JT; Stein, R; Moros, M et al. (2016): XRD mineralogy of sediment core PS2641-4. https://doi.org/10.1594/PANGAEA.848756