Scanning Electron Microscopy - Energy Dispersive Spectroscopy data from surface seawater particles collected from the West Antarctic Peninsula during the Icebergs 3 JR19002 expedition ...

• Main Authors: Jones, Rhiannon L., Annett, Amber L., Pearce, Richard, Flanagan, Oliver, Scourse, James D., Lohan, Maeve
• Format: Dataset
• Language: English
• Published: NERC EDS UK Polar Data Centre 2025
• Subjects: "EARTH SCIENCE","BIOSPHERE","ECOLOGICAL DYNAMICS","ECOSYSTEM FUNCTIONS","BIOGEOCHEMICAL CYCLES"; "EARTH SCIENCE","CRYOSPHERE","GLACIERS/ICE SHEETS","GLACIERS"; "EARTH SCIENCE","OCEANS","OCEAN CHEMISTRY","BIOGEOCHEMICAL CYCLES"; glacier retreat; meltwater; particulate metal cycling; polar biogeochemistry; surface ocean biogeochemistry; Adelaide Island; Antarctic; Antarctic Peninsula; Anvers; Anvers Island; King George Island; Marian; Marian Cove; Maxwell Bay; Ryder; Ryder Bay; Antarc*; Iceberg*
• Online Access: https://dx.doi.org/10.5285/af8aeb71-9f28-4eb7-b5b5-d7383c746eb9; https://data.bas.ac.uk/full-record.php?id=GB/NERC/BAS/PDC/01980

During the JR19002 Icebergs 3 cruise, particulate samples from the surface seawater were collected from Zodiacs. Samples were collected with the motivation of sampling glacially-derived particles and determining the biogeochemical composition and environmental significance of these particles with respect to iron and carbon cycling. Three main sites were visited during JR19002 from south to north: Marian Cove, Maxwell Bay, King George Island; Borgen Bay, Anvers Island; and Sheldon Cove, Ryder Bay, Adelaide Island. Small boat traversed each bay, collecting particulate and dissolved seawater samples. Scanning Electron Microscopy - Energy Dispersive Spectroscopy was performed upon three particulate samples at each site, to quantify the elemental composition of typical particles. Funding: NERC Independent Research Fellowship, NE/P017630/1 (Dr Amber Annett). ... : Data was collected during the JR19002 Icebergs 3 cruise from Zodiac boats by hand. Surface seawater was collected into 500 mL bottles and then, on board under clean-room conditions, seawater was filtered over 0.4 um polycarbonate filters using a vacuum pump. Filters with sample were immediately frozen at -20 and transported back to the University of Southampton. Nine samples (3 from each glaciated bay) were studied using scanning electron microscopy-energy dispersive X-ray spectrometry (SEM-EDS) to determine the solid phase mineralogy and elemental composition. A small strip of sample filter was removed and transferred onto a conductive and adhesive carbon tape mounted on an aluminium SEM sample holder. Samples were coated with 20 nm of gold and placed on the stage of the microscope under low vacuum conditions. Chemical and morphological properties of the particles were determined by spot analysis and in some cases elemental mapping using an SEM (Carl Zeiss Leo 1450VP SEM) equipped with an Oxford Instruments ...