Diatom assemblages excluding Chaetoceros resting spores of sediment core JPC43 in Neny Fjord, Antarctic Peninsula

• Main Authors: Allen, Claire Susannah, Oakes-Fretwell, Lisa, Anderson, John, Hodgson, Dominic A
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Actinocyclus actinochilus; Antarctic Peninsula; Climate change; Cocconeis spp.; Counting; diatoms; DEPTH; sediment/rock; other; Eucampia antarctica; Fragilariopsis curta and Fragilariopsis cylindrus; Fragilariopsis kerguelensis; Fragilariopsis obliquecostata; Fragilariopsis ritscheri; Fragilariopsis spp.; Fragilariopsis sublinearis; Fragilariopsis vanheurckii; Holocene; JPC; JPC43; Jumbo Piston Core; Marguerite Bay; Meltwater; Nathaniel B. Palmer; Navicula sp.; NBP0201; NBP0201_JPC43; Odontella weissflogii; Palaeoceanography; Porosira spp.; Proboscia spp.; Pseudo-nitzschia spp.; Rhizosolenia spp.; sea-ice; Thalassiosira antarctica; resting spores; Thalassiosira gracilis var. expecta; Thalassiosira gracilis var. nominate; Thalassiosira lentiginosa; Thalassiosira spp.; Thalassiothrix group; tidewater outlet glaciers; Antarctic; The Antarctic; Marguerite; Neny; Neny Fjord; Antarc*; Antarctica; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.931913; https://doi.org/10.1594/PANGAEA.931913

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).