Andrews, John T (2022): Mineral and grain size data for sediment core MD99-2317 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.940546
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Abstract:
Core MD99-2317 was taken from the Grivel Basin, East Greenland ) (68.103°N, 27.8615°W, 536 m wd, 25.07 m long), offshore from the 60,000 km2 early Tertiary basalt outcrop, and from an area subjected to the transport of icebergs from local and regional tidewater glaciers. Radiocarbon dates for this core are reported in Jennings et al (2011). Grain size analysis of the < 2mm sediment fraction was undertaken using the Malvern 3000 master-sizer and is reported as volume% of sediment in 100 intervals between 0.01 and 3500 µm (Table 1). Derived parameters from these values (Table 2) include measures of coast sand attributed to iceberg rafting (> 240 µm), volume % of sand, and measures of the sortable silt % and the mean sortable silt grain size, which can be correlated with changes in the flow speed of bottom currents . Tables 3 and 4 report replicate runs on X-ray diffraction estimates of mineral weight % and Malvern-based grain size volume % for a series of 7 paired samples (A versus B) taken across the 10-cm diameter core in order to investigate the variability of six non-clay and clay minerals and six grain size variables in adjacent samples. Between sample Analysis-of-Variance on the data set indicated only a limited number of statistically significant differences.
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Related to:
McCave, I Nick; Andrews, John T (2019): Distinguishing current effects in sediments delivered to the ocean by ice. II. Glacial to Holocene changes in high latitude North Atlantic upper ocean flows. Quaternary Science Reviews, 223, 105902, https://doi.org/10.1016/j.quascirev.2019.105902
Further details:
Jennings, Anne E; Andrews, John T; Wilson, Lindsay (2011): Holocene environmental evolution of the SE Greenland Shelf North and South of the Denmark Strait: Irminger and East Greenland current interactions. Quaternary Science Reviews, 30(7-8), 980-998, https://doi.org/10.1016/j.quascirev.2011.01.016
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Coverage:
Latitude: 68.103000 * Longitude: -27.861500
Date/Time Start: 1999-08-01T00:00:00 * Date/Time End: 1999-08-01T00:00:00
Event(s):
MD99-2317 (F/Us) * Latitude: 68.103000 * Longitude: -27.861500 * Date/Time: 1999-08-01T00:00:00 * Elevation: -536.0 m * Recovery: 25.07 m * Location: East Greenland Shelf basin * Campaign: MD114 (IMAGES V) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
4 datasets
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Datasets listed in this bundled publication
- Andrews, JT (2022): Downcore grain-size data for sediment core MD99-2317 (Table 1). https://doi.org/10.1594/PANGAEA.940539
- Andrews, JT (2022): Results of calculations of various size fractions including the % of sediment > 240 µm (ice rafted) and sortable silt estimates in sediment core MD99-2317 (Table 2). https://doi.org/10.1594/PANGAEA.940540
- Andrews, JT (2022): Quantitative X-ray diffraction replicate results of the weight % of non-clay and clay minerals from the 7 A versus B samples of sediment core MD99-2317 (Table 3). https://doi.org/10.1594/PANGAEA.940541
- Andrews, JT (2022): Grain-size data from the 7 A versus B samples of sediment core MD99-2317 (Table 4). https://doi.org/10.1594/PANGAEA.940542