Stevenard, Nathan; Govin, Aline; Kissel, Catherine; Van Toer, Aurélie (2023): Geochemical ratio ln(Zr/Rb) from core MD03-2673 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.950965
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Abstract:
The geochemical ratio ln(Zr/Rb) was analyzed in the core MD03-2673 located in the North Atlantic. The geochemical proxy ln(Zr/Rb) is used as grain-size proxy free of ice-rafted debris (IRD) influence. The X-ray fluorescence (XRF) data were obtained every cm with a Avaatech core scanner, 4th generation, at the Laboratoire des Sciences du Climat et de l'Environnement (LSCE). The data were calibrated using the Multivariate Log-ratio Calibration (MLC) developed by Weltje et al. (2015) by analyzing discrete samples with a PANalytical Epsilon XRF spectrometer. These data were used as reference for grain-size variability free of IRD influence in Stevenard et al. (submitted).
Supplement to:
Stevenard, Nathan; Govin, Aline; Kissel, Catherine; Van Toer, Aurélie (2023): Correction of the IRD Influence for Paleo‐Current Flow Speed Reconstructions in Hemipelagic Sediments. Paleoceanography and Paleoclimatology, 38(3), e2022PA004500, https://doi.org/10.1029/2022PA004500
Related to:
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
Coverage:
Latitude: 56.365200 * Longitude: -27.814300
Date/Time Start: 2003-06-16T10:58:00 * Date/Time End: 2003-06-16T10:58:00
Minimum DEPTH, sediment/rock: 23.00 m * Maximum DEPTH, sediment/rock: 36.50 m
Event(s):
MD03-2673 (MD032673) * Latitude: 56.365200 * Longitude: -27.814300 * Date/Time: 2003-06-16T10:58:00 * Elevation: -2829.0 m * Recovery: 39.05 m * Location: Gardar Drift * Campaign: MD132 (IMAGES XI - P.I.C.A.S.S.O.) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer (CALYPSO)
Comment:
The study was supported by the CNRS-INSU LEFE D.E.C.O.R.A.T.I.N.G project: "Dynamique des principaux courants profonds de l'Atlantique lors des périodes chaudes du passé : étude des interglaciaires des derniers 450 000 ans".
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Stevenard, Nathan | Geocode | |
| 2 | ln-Zirconium/Rubidium ratio | ln(Zr/Rb) | Stevenard, Nathan | X-ray fluorescence core scanner (XRF), Avaatech |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1330 data points