Citation:

PANGAEA.982959

Name: Si/Al derived opal concentrations of IODP Site U1537
Published: 2025-10-01
License: https://creativecommons.org/licenses/by/4.0/
Keywords: authigenic uranium; Biogenic Barium (xsBa); bottom-water oxygenation; export productivity; opal; Scotia Sea; sediment; Southern Ocean; Th; thorium normalization; Weddell Sea

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Published: 2025-10-01 • DOI registered: 2025-10-30

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Abstract:

We calculated the opal content by normalizing XRF based Si/Al-ratios with FTIRS based biogenic opal measurements. This shows a much stronger correlation (R=0.96) for the last 300 kyr than b* and opal content (R=0.77) (Weber et al. 2022).

Keyword(s):

authigenic uranium; Biogenic Barium (xsBa); bottom-water oxygenation; export productivity; opal; Scotia Sea; sediment; Southern Ocean; Th; thorium normalization; Weddell Sea

Related to:

Weber, Michael E (2021): Opal content of IODP Site 382-U1537 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.939639

Weber, Michael E (2021): Si/Ti and Si/Al ratios of IODP Site 382-U1537 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.939642

Project(s):

Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)

Coverage:

Latitude: -59.111000 * Longitude: -40.906000

Minimum Elevation: -3712.0 m * Maximum Elevation: -3712.0 m

Event(s):

382-U1537 * Latitude: -59.111000 * Longitude: -40.906000 * Elevation: -3712.0 m * Campaign: * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Depth, composite	Depth comp	mcd	Hallmaier, Moritz	CCSF (m)
2	AGE	Age	ka BP	Hallmaier, Moritz	Geocode – Weber
3	AGE	Age	ka BP	Hallmaier, Moritz	Geocode – Lu, Weber
4	Opal, biogenic silica	bSiO2	%	Hallmaier, Moritz	Si/Al-derived

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

6126 data points

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