Citation:

PANGAEA.981144 (dataset in review)

Name: XRF measurements of Bromine and SiO2 for sediment core RAPiD-21-03K
License: https://creativecommons.org/licenses/by/4.0/
Keywords: diatoms; particulate organic carbon (POC); Radiolaria; Sediment core; subpolar North Atlantic

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Abstract:

The core RAPiD-21-03K was scanned using an ITRAX X-Ray Fluorescence core scanner at 0.002 m (1.6 year) resolution for flux quantification. Br and Si intensities were calibrated into weight fraction Br and SiO2 using the protocol from Weltje, G. J. et al. (2015). In this dataset, 'depth' is the midpoint distance each sediment sample was taken from the top of the core in m, 'age' is the calibrated age in both years before present and in common era calendar years, 'Br', 'SiO2' is the mass fraction of bromine or silica at each depth following calibration of the XRF-derived intensity, 'isoutlier' identifies Br or SiO2 mass fraction values more than three scaled median absolute deviations from the median. 'Br', 'SiO2' is the mass fraction of bromine or silica at each depth following calibration of the XRF-derived intensity, 'isoutlier' identifies Br or SiO2 mass fraction values more than three scaled median absolute deviations from the median.

Keyword(s):

diatoms; particulate organic carbon (POC); Radiolaria; Sediment core; subpolar North Atlantic

References:

Weltje, Gert Jan; Bloemsma, M R; Tjallingii, Rik; Heslop, David; Röhl, Ursula; Croudace, Ian W (2015): Prediction of Geochemical Composition from XRF Core Scanner Data: A New Multivariate Approach Including Automatic Selection of Calibration Samples and Quantification of Uncertainties. Croudace, I., Rothwell, R. (eds): Micro-XRF Studies of Sediment Cores. Developments in Paleoenvironmental Research, Springer, Dordrecht, https://doi.org/10.1007/978-94-017-9849-5_21

Funding:

European Research Council (ERC), grant/award no. 2015-COG-681746: APPELS

European Research Council (ERC), grant/award no. 2020-ADG-10101914: SCOOBI

Natural Environment Research Council (NERC), grant/award no. EP/Y004221/1: SODIOM

Coverage:

Latitude: 57.451500 * Longitude: -27.908830

Minimum DEPTH, sediment/rock: 0.02963 m * Maximum DEPTH, sediment/rock: 0.99963 m

Event(s):

RAPiD-21-03K * Latitude: 57.451500 * Longitude: -27.908830 * Elevation: -2630.0 m * Location: South of Iceland * Campaign: * Basis: Charles Darwin * Method/Device: Kasten corer (KAL)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Wood, Thomas		Geocode
2	AGE	Age	ka BP	Wood, Thomas	Age, calibrated	Geocode
3	Age	Age	a AD/CE	Wood, Thomas	Age, calibrated
4	Bromine, mass fraction	Br fraction		Wood, Thomas	X-ray fluorescence ITRAX core scanner
5	Sample comment	Sample comment		Wood, Thomas	X-ray fluorescence ITRAX core scanner	IsOutlier Br
6	Silicon dioxide, mass fraction	SiO2 fraction		Wood, Thomas	X-ray fluorescence ITRAX core scanner
7	Sample comment	Sample comment		Wood, Thomas	X-ray fluorescence ITRAX core scanner	IsOutlier SiO2

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

2430 data points

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