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Husdell, Molly (2026): Grainsize data from IN2023_V01_04_KC02, Cape Darnley, East Antarctica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.996760

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Published: 2026-10-09 • DOI registered: 2026-10-09

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Abstract:
This dataset comes from the marine sediment core, IN2023_V01_04_KC02, from Cape Darnley, East Antarctica (Post et al., 2024). Laser grainsize analyses were conducted on samples at 10 cm depth intervals. Aliquots of wet sample were pipetted for grain size analysis of the 0–2 mm size fraction using a calibrated Malvern dispersion unit and a Malvern Mastersizer 3000 laser particle sizer at Geoscience Australia. Chemical treatment for the removal of biogenic silica was not undertaken. Duplicates were run to ensure consistency in measured grain size, and each sample was analysed three times to determine measurement variance (<0.4% across clay, silt, and sand fractions). Glass bead standards were run every 20–25 analyses for instrument calibration.
Keyword(s):
Antarctica; Cape Darnley; Diatom; Sediment core
Supplement to:
Husdell, Molly; Leventer, Amy; Lowe, Vikki; Gwyther, David E; Jeromson, Matthew R; Parrott, Alexandra E; Welsh, Kevin; Post, Alexandra L; Chase, Zanna; Noble, Taryn L; Bostock, Helen C (in review): Sea surface conditions and Antarctic Bottom Water formation offshore Cape Darnley, East Antarctica, over the last 600 ka: new insights from the diatom record. Paleoceanography and Paleoclimatology
References:
Post, Alexandra L; Bostock, Helen C; Chase, Zanna; Noble, Taryn L; Amarathunga, Udara; Armbrecht, Linda; Behrens, Bethany; Blanckensee, S; Camacho, Alfredo; Carroll, Andrew; Creac'h, Layla; Gunn, Kevin; Herweynan, D; Hughes, P; Husdell, Molly; Jeromson, Matthew R; Lalime, J; Leplastrier, A; Lowe, Vikki; Nanson, R; Nau, A; Navidad, C; Singh, P; Surapaneni, V; Trihey, J; Wenderlich, M J; Williams, T (2024): Post-survey report: CANYONS - Cape Darnley paleoceanography from sediment cores IN2023_V01. Commonwealth of Australia (Geoscience Australia), https://doi.org/10.26186/149094
Coverage:
Latitude: -65.501331 * Longitude: 65.309780
Date/Time Start: 2023-02-08T00:00:00 * Date/Time End: 2023-02-08T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 3.70 m
Event(s):
IN2023_V01_04KC02 * Latitude: -65.501331 * Longitude: 65.309780 * Date/Time: 2023-02-08T00:00:00 * Elevation: -2712.0 m * Recovery: 3.71 m * Campaign: IN2023_V01 (CANYONS) * Basis: Investigator (2014) * Method/Device: Kasten corer (KAL)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Sample IDSample IDHusdell, Molly
2DEPTH, sediment/rockDepth sedmHusdell, MollyGeocode
3Size fraction < 0.063 mm, mud, silt+clay<63 µm%Husdell, MollyParticle size analyzer, Malvern Panalytical, Mastersizer 3000 laser diffraction
4Size fraction < 0.004 mm, clay<4 µm%Husdell, MollyParticle size analyzer, Malvern Panalytical, Mastersizer 3000 laser diffraction
5Size fraction 0.063-0.004 mm, silt63-4 µm%Husdell, MollyParticle size analyzer, Malvern Panalytical, Mastersizer 3000 laser diffraction
6Size fraction 2.000-0.063 mm, sand2000-63 µm%Husdell, MollyParticle size analyzer, Malvern Panalytical, Mastersizer 3000 laser diffraction
7Size fraction > 2 mm, gravel>2 mm%Husdell, MollyParticle size analyzer, Malvern Panalytical, Mastersizer 3000 laser diffraction
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
228 data points

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