Diatom assemblages of Holocene sediments in Neny Fjord, Antarctic Peninsula

doi:doi:10.1594/PANGAEA.931918

Diatom assemblages of Holocene sediments in Neny Fjord, Antarctic Peninsula

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).

BibTex:

@dataset{Allen_Claire_Susannah_and_Oakes-Fretwell_Lisa_and_Anderson_John_and_Hodgson_Dominic_A_2021,
    abstract = {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).},
    author = {Allen, Claire Susannah and Oakes-Fretwell, Lisa and Anderson, John and Hodgson, Dominic A},
    doi = {10.1594/PANGAEA.931918},
    institution = {PANGAEA (Land Surface)},
    keyword = {'Antarctic Peninsula', 'Climate change', 'Holocene', 'Meltwater', 'Palaeoceanography', 'diatoms', 'ice', 'sea', 'tidewater outlet glaciers'},
    title = {Diatom assemblages of Holocene sediments in Neny Fjord, Antarctic Peninsula},
    url = {https://service.tib.eu/ldmservice/vdataset/png-doi-10-1594-pangaea-931918},
    year = {2021}
}