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Found 9 results.

Calcium carbonate (CaCO3), total organic carbon (TOC) contents and carbon-to-nitrogen ratio (C/N) from composite sediment core BIS-2000

The data set bundle comprises geochemical, XRF core scanning and pollen data from composite sediment core BIS-2000, which was compiled from two parallel sediment cores (BIS-1 and BIS-3) obtained near Bispingen, northern Germany (53.071528°N, 9.989861°E, 82.0 m). BIS-2000 comprises Last Interglacial (Eemian) to early Last Glacial (Weichselian) palaeolake deposits, which cover the section between 15.55 and 30.68 m composite depth. The data set Bispingen BIS-2000 geochemistry contains calcium carbonate (CaCO3) and total organic carbon (TOC) contents (expressed as per cent of sediment dry weight) as well as carbon-to-nitrogen ratio (C/N) data. Analyses were carried out at the GFZ German Research Centre for Geosciences in Potsdam, Germany, on the section between 15.55 and 30.72 m composite depth. The CaCO3 content was calculated from the total inorganic carbon (TIC) content, which was measured using a STRÖHLEIN Coulomat 702. In addition, measurements of the total carbon (TC) and total nitrogen (TN) contents were carried out using a LECO CNS-2000 elemental analyser. TOC was calculated as the difference between TC and TIC and C/N was calculated as the mass ratio between TC and TN.

XRF core scanning of composite sediment core BIS-2000

The data set bundle comprises geochemical, XRF core scanning and pollen data from composite sediment core BIS-2000, which was compiled from two parallel sediment cores (BIS-1 and BIS-3) obtained near Bispingen, northern Germany (53.071528°N, 9.989861°E, 82.0 m). BIS-2000 comprises Last Interglacial (Eemian) to early Last Glacial (Weichselian) palaeolake deposits, which cover the section between 15.55 and 30.68 m composite depth. The data set Bispingen BIS-2000 XRF contains results of XRF core scanning. Analyses were carried out at the GFZ German Research Centre for Geosciences in Potsdam, Germany, on the section between 15.08 and 31.20 m composite depth. Split sediment core segments were scanned with an ITRAX XRF core scanner and measured intensities of silicon, calcium and titanium were used to calculate the log-ratios log(Si/Ti) and log(Ca/Ti).

Pollen percentage values of selected taxa from composite sediment core BIS-2000

The data set bundle comprises geochemical, XRF core scanning and pollen data from composite sediment core BIS-2000, which was compiled from two parallel sediment cores (BIS-1 and BIS-3) obtained near Bispingen, northern Germany (53.071528°N, 9.989861°E, 82.0 m). BIS-2000 comprises Last Interglacial (Eemian) to early Last Glacial (Weichselian) palaeolake deposits, which cover the section between 15.55 and 30.68 m composite depth. The data set Bispingen BIS-2000 pollen contains pollen percentage values of selected taxa. Analyses were carried out at the University of Bonn, Germany, and at the University of the Witwatersrand, South Africa, on the section between 18.19 and 30.68 m composite depth. Sample preparation followed the standard method described by Berglund & Ralska-Jasiewiczowa (1986), including treatment with cool HF and HCl, acetolysis, staining with safranine, and mounting in glycerol. Pollen counting was carried out using a light microscope at 400× magnification and pollen percentages were calculated based on the sum of trees/shrubs (arboreal pollen) and dwarf shrubs/herbs (non-arboreal pollen; excluding aquatic and wetland plants).

Annual SST estimates for the Last Interglacial (129-116 ka BP)

Maximum annual SST estimates during the early LIG (129-124 ka; 189 sites)

Annual SST estimates from the late Marine Isotope Stage 6 (140-135 kyr) and comparison to the early LIG

SST estimates for the Last Interglacial (129-116 ka BP) during the months of June, July and August

SST estimates for the Last Interglacial (129-116 ka BP) during the months of December, January and February

Revised age models and foraminiferal records obtained for the Last Interglacial period in six marine sediment cores

The dataset contains the revised age models and foraminiferal records obtained for the Last Interglacial period in six marine sediment cores: - the Southern Ocean core MD02-2488 (age model, sea surface temperatures, benthic d18O and d13C for the period 136-108 ka), - the North Atlantic core MD95-2042 (age model, planktic d18O, benthic d18O and d13C for the period 135-110 ka), - the North Atlantic core ODP 980 (age model, planktic d18O, sea surface temperatures, seawater d18O, benthic d18O and d13C, ice-rafted detritus for the period 135-110 ka), - the North Atlantic core CH69-K09 (age model, planktic d18O, sea surface temperatures, seawater d18O, benthic d18O and d13C, ice-rafted detritus for the period 135-110 ka), - the Norwegian Sea core MD95-2010 (age model, percentage of Neogloboquadrina pachyderma sinistral, sea surface temperatures, benthic d18O, ice-rafted detritus for the period 134-110 ka), - the Labrador Sea core EW9302-JPC2 (age model, percentage of Neogloboquadrina pachyderma sinistral, sea surface temperatures, benthic d18O for the period 134-110 ka).

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