Citation:

PANGAEA.996760

Name: Grainsize data from IN2023_V01_04_KC02, Cape Darnley, East Antarctica
Creator: Molly Husdell
Published: 2026-10-09
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Antarctica; Cape Darnley; Diatom; Sediment core

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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: (CANYONS) * Basis: * Method/Device: Kasten corer (KAL)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Sample ID	Sample ID		Husdell, Molly
2	DEPTH, sediment/rock	Depth sed	m	Husdell, Molly		Geocode
3	Size fraction < 0.063 mm, mud, silt+clay	<63 µm	%	Husdell, Molly	Particle size analyzer, Malvern Panalytical, Mastersizer 3000 laser diffraction
4	Size fraction < 0.004 mm, clay	<4 µm	%	Husdell, Molly	Particle size analyzer, Malvern Panalytical, Mastersizer 3000 laser diffraction
5	Size fraction 0.063-0.004 mm, silt	63-4 µm	%	Husdell, Molly	Particle size analyzer, Malvern Panalytical, Mastersizer 3000 laser diffraction
6	Size fraction 2.000-0.063 mm, sand	2000-63 µm	%	Husdell, Molly	Particle size analyzer, Malvern Panalytical, Mastersizer 3000 laser diffraction
7	Size fraction > 2 mm, gravel	>2 mm	%	Husdell, Molly	Particle 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

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Sample ID	2 Depth sed [m]	3 <63 µm [%]	4 <4 µm [%]	5 63-4 µm [%]	6 2000-63 µm [%]
IN2023_V01_04KC02_2-3cm	0.00	85.48	34.37	51.11	14.54
IN2023_V01_04KC02_12-13cm	0.12	87.27	42.82	44.45	12.63
IN2023_V01_04KC02_22-23cm	0.22	84.12	41.73	42.39	15.78
IN2023_V01_04KC02_32-33cm	0.32	96.03	65.91	30.12	3.97
IN2023_V01_04KC02_42-43cm	0.42	88.89	60.45	28.44	10.96
IN2023_V01_04KC02_52-53cm	0.52	89.04	49.78	39.26	10.92
IN2023_V01_04KC02_62-63cm	0.62	87.11	44.53	42.58	12.80
IN2023_V01_04KC02_72-73cm	0.72	87.39	42.32	45.07	12.58
IN2023_V01_04KC02_82-83cm	0.82	87.35	33.70	53.65	12.62
IN2023_V01_04KC02_92-93cm	0.92	91.18	31.19	59.99	8.83
IN2023_V01_04KC02_100-101cm	1.00	89.21	33.05	56.16	10.80
IN2023_V01_04KC02_110-111cm	1.10	90.67	36.42	54.25	9.35
IN2023_V01_04KC02_120-121cm	1.20	88.45	37.51	50.94	11.53
IN2023_V01_04KC02_130-131cm	1.30	89.52	38.86	50.66	10.44
IN2023_V01_04KC02_140-141cm	1.40	85.42	35.03	50.39	14.60
IN2023_V01_04KC02_150-151cm	1.50	87.69	37.04	50.65	12.32
IN2023_V01_04KC02_160-161cm	1.60	87.94	32.30	55.64	12.05
IN2023_V01_04KC02_170-171cm	1.70	88.22	33.47	54.75	11.83
IN2023_V01_04KC02_180-181cm	1.80	89.02	40.63	48.39	10.97
IN2023_V01_04KC02_190-191cm	1.90	88.42	46.00	42.42	11.43
IN2023_V01_04KC02_200-201cm	2.00	88.54	41.31	47.23	11.40
IN2023_V01_04KC02_210-211cm	2.10	87.93	30.97	56.96	12.10
IN2023_V01_04KC02_220-221cm	2.20	88.30	33.55	54.75	11.70
IN2023_V01_04KC02_231-232cm	2.30	83.59	34.66	48.93	16.42
IN2023_V01_04KC02_240-241cm	2.40	85.74	32.74	53.00	14.23
IN2023_V01_04KC02_250-251cm	2.50	84.46	24.31	60.15	15.57
IN2023_V01_04KC02_260-261cm	2.60	89.07	28.11	60.96	10.92
IN2023_V01_04KC02_270-271cm	2.70	88.58	36.84	51.74	11.46
IN2023_V01_04KC02_280-281cm	2.80	83.15	48.48	34.67	16.61
IN2023_V01_04KC02_290-291cm	2.90	84.01	52.34	31.67	15.72
IN2023_V01_04KC02_300-301cm	3.00	87.73	50.15	37.58	12.09
IN2023_V01_04KC02_310-311cm	3.10	87.84	42.93	44.91	12.12
IN2023_V01_04KC02_320-321cm	3.20	87.60	36.54	51.06	12.40
IN2023_V01_04KC02_330-331cm	3.30	85.98	39.34	46.64	14.03
IN2023_V01_04KC02_340-341cm	3.40	90.30	42.08	48.22	9.67
IN2023_V01_04KC02_350-351cm	3.50	88.11	40.08	48.03	11.85
IN2023_V01_04KC02_360-361cm	3.60	89.65	42.26	47.39	10.36
IN2023_V01_04KC02_370-371cm	3.70	75.76	31.51	44.25	24.24