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Allen, Claire Susannah; Oakes-Fretwell, Lisa; Anderson, John; Hodgson, Dominic A (2021): Diatom assemblages excluding Chaetoceros resting spores of sediment core JPC43 in Neny Fjord, Antarctic Peninsula [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.931913, In: Allen, CS et al. (2021): Diatom assemblages of Holocene sediments in Neny Fjord, Antarctic Peninsula [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.931918

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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. Relative abundance of diatom taxa are based on counts (mean=363.1 valves) excluding Chaetoceros resting spores (CRS) - 'CRS-free counts' (n=66). The relevant methods are described and referenced in the associated publication (Allen et al. 2010).
Keyword(s):
Antarctic Peninsula; Climate change; diatoms; Holocene; Meltwater; Palaeoceanography; sea-ice; tidewater outlet glaciers
Related to:
Allen, Claire Susannah; Oakes-Fretwell, Lisa; Anderson, John B; Hodgson, Dominic A (2010): A record of Holocene glacial and oceanographic variability in Neny Fjord, Antarctic Peninsula. The Holocene, 20(4), 551-564, https://doi.org/10.1177/0959683609356581
Funding:
National Science Foundation (NSF), grant/award no. OPP-9909734: LGM Late Pleistocene to Holocene Glacial History of West Antarctica
Coverage:
Latitude: -68.257100 * Longitude: -66.961700
Date/Time Start: 2002-02-19T00:00:00 * Date/Time End: 2002-02-20T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 11.80 m
Event(s):
NBP0201_JPC43 (JPC43) * Latitude: -68.257100 * Longitude: -66.961700 * Date/Time Start: 2002-02-19T00:00:00 * Date/Time End: 2002-02-20T00:00:00 * Elevation: -576.0 m * Location: Marguerite Bay * Campaign: NBP0201 * Basis: Nathaniel B. Palmer * Method/Device: Jumbo Piston Core (JPC)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmAllen, Claire SusannahGeocode
2Actinocyclus actinochilusA. actinochilus%Allen, Claire SusannahCounting, diatoms
3Cocconeis spp.Cocconeis spp.%Allen, Claire SusannahCounting, diatoms
4Eucampia antarcticaE. antarctica%Allen, Claire SusannahCounting, diatoms
5Fragilariopsis curta and Fragilariopsis cylindrusF. curta+F. cylindrus%Allen, Claire SusannahCounting, diatoms
6Fragilariopsis kerguelensisF. kerguelensis%Allen, Claire SusannahCounting, diatoms
7Fragilariopsis obliquecostataF. obliquecostata%Allen, Claire SusannahCounting, diatoms
8Fragilariopsis ritscheriF. ritscheri%Allen, Claire SusannahCounting, diatoms
9Fragilariopsis sublinearisF. sublinearis%Allen, Claire SusannahCounting, diatoms
10Fragilariopsis vanheurckiiF. vanheurckii%Allen, Claire SusannahCounting, diatoms
11Navicula sp.Navicula sp.%Allen, Claire SusannahCounting, diatoms
12Odontella weissflogiiO. weissflogii%Allen, Claire SusannahCounting, diatoms
13Fragilariopsis spp.Fragilariopsis spp.%Allen, Claire SusannahCounting, diatoms
14Porosira spp.Porosira spp.%Allen, Claire SusannahCounting, diatoms
15Proboscia spp.Proboscia spp.%Allen, Claire SusannahCounting, diatoms
16Pseudo-nitzschia spp.Pseudo-nitzschia spp.%Allen, Claire SusannahCounting, diatoms
17Rhizosolenia spp.Rhizosolenia spp.%Allen, Claire SusannahCounting, diatoms
18Thalassiosira antarctica, resting sporesT. antarctica rs%Allen, Claire SusannahCounting, diatomscold water form
19Thalassiosira antarctica, resting sporesT. antarctica rs%Allen, Claire SusannahCounting, diatomswarm water form
20Thalassiosira gracilis var. expectaT. gracilis var. expecta%Allen, Claire SusannahCounting, diatoms
21Thalassiosira gracilis var. nominateT. gracilis var. nominate%Allen, Claire SusannahCounting, diatoms
22Thalassiosira lentiginosaT. lentiginosa%Allen, Claire SusannahCounting, diatoms
23Thalassiosira spp.Thalassiosira spp.%Allen, Claire SusannahCounting, diatoms
24Thalassiothrix groupThalassiothrix gr%Allen, Claire SusannahCounting, diatomsThalassiothrix spp., Trichotoxon spp. and Thalassionema spp.
25Diatoms, otherDiatom oth%Allen, Claire SusannahCounting, diatoms
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1584 data points

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