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  • Antarctic Peninsula; Climate change; diatoms; Holocene; Meltwater; Palaeoceanography; sea-ice; tidewater outlet glaciers  (1)
  • Antarctica; ANTarctic Sea Ice Evolution from a novel biological archive; ANTSIE; Biomarker; fatty acid; Last Glacial; mumiyo; Sea ice; Stable isotope; XRF  (1)
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  • 1
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    Unknown
    Age model, XRF data, fatty acid distributions and stable isotope analysis for stomach oil deposit WMM7, Dronning Maud Land (2021)
    PANGAEA
    Details
    Publication Date: 2023-11-24
    Description: Elemental scans, organic geochemistry and stable isotope analysis is presented here from a stomach-oil deposit collected at Lake Untersee in central Dronning Maud Land (DML). Deposit WMM7 (sometimes called Antarctic mumiyo) was collected at -71.367 degN, 13.317 degE during the GeoMaud expedition (1995/1996), from the Untersee Oasis, Dronning Maud Land. The aim of the analysis is to investigate snow petrel diet during the Last Glacial stage (22-29 ka) and in turn to infer changing sea-ice conditions in the South Atlantic sector of the Southern Ocean (McClymont et al., Climate of the Past Discussions, submitted). The data include results from non-destructive XRF scanning (ITRAX core scanner, National Oceanography Centre, Southampton, U.K.), fatty acid distributions and fatty acid stable isotope ratios (Department of Geography, Durham University, Durham, U.K.) and bulk stable carbon and nitrogen isotope ratios (Department of Earth Sciences, Durham University, Durham, U.K.). The age-depth model is constrained by 6 new bulk radiocarbon measurements (CologneAMS, Cologne, Germany).
    Keywords: Antarctica; ANTarctic Sea Ice Evolution from a novel biological archive; ANTSIE; Biomarker; fatty acid; Last Glacial; mumiyo; Sea ice; Stable isotope; XRF
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Diatom assemblages of Holocene sediments in Neny Fjord, Antarctic Peninsula (2021)
    PANGAEA
    Details
    Publication Date: 2023-12-12
    Description: Diatom abundance and assemblage data are presented for JPC43 - a ~12 m marine sediment core recovered from 576 m water depth in Neny Fjord, Marguerite Bay, Antarctic Peninsula (68.2571°S, 66.9617°W). The core was collected aboard the RVIB Nathanial B Palmer in 2002 during the NBP0201 scientific cruise (PI: Prof J B Anderson) to determine the timing of deglaciation in the fjords of the Antarctic Peninsula. The core record spans the Holocene with samples dated using an age model based on 5 reliable radiocarbon dates. Diatom concentrations and the contribution of Chaetoceros resting spores (CRS %) are calculated from counts (mean=474.4 valves) of the whole diatom assemblage - 'total counts' (n=81); relative abundance of all other diatom taxa are based on counts (mean=363.1 valves) excluding CRS - 'CRS-free counts' (n=66). The relevant methods are described and referenced in the associated publication (Allen et al. 2010).
    Keywords: Antarctic Peninsula; Climate change; diatoms; Holocene; Meltwater; Palaeoceanography; sea-ice; tidewater outlet glaciers
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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