Mineral and grain size data for sediment core MD99-2317 ...

• Main Author: Andrews, John T
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2022
• Subjects: paired samples across a core; sortable silt & ice rafted debris; X-ray diffraction mineral wt%; Calypso Corer; MD114; Marion Dufresne 1995; Greenland; Jennings; East Greenland
• Online Access: https://dx.doi.org/10.1594/pangaea.940546; https://doi.pangaea.de/10.1594/PANGAEA.940546

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 ...