Trace-elemental data (Mn/Ca, Mg/Ca, Sr/Ca) of the benthic foraminifer Nonionella stella from core-top sediments of the Santa Barbara Basin, USA
https://doi.org/10.5878/x6sa-jy16
Dataset of Mn/Ca, Mg/Ca and Sr/Ca of the three most-recently formed chambers (n, n-1 and n-2) of Nonionella stella (CTG-labelled) acquired by Secondary Ion Mass Spectrometry (SIMS; Nordsim, Stockholm, Sweden). Nonionella stella specimens were collected from core-top samples of three sites over a depth-gradient in the Santa Barbara Basin, off Southern California, USA. The data set is part of a study exploring the response of foraminiferal Mn/Ca to changing bottom-water oxygenation and pore-water Mn geochemistry.
The data is discussed in:
Brinkmann, I., Ni, S., Schweizer, M., Oldham, V. E., Quintana Krupinski, N. B., Medjoubi, K., et al. (2021). Foraminiferal Mn/Ca as bottom-water hypoxia proxy: An assessment of Nonionella stella in the Santa Barbara Basin, USA. Paleoceanography and Paleoclimatology, 36, e2020PA004167. https://doi.org/10.1029/2020PA004167.
Please contact the main author for further details (inda.brinkmann@geol.lu.se).
The northern SBB was sampled in May 2018 (cruise SP1811, R/V Robert Gordon Sproul) at site 1 (430 m; 34º 18.6’N, 119º 54.0’W), site 2 (505 m; 34º 20.8’N, 119º 59.0’W) and site 3 (567 m; 34º 19.2’N, 120º 03.4’W). Sediment cores were recovered with a Ocean Instruments MC800 multicorer. The cores were sliced into 0.5 cm sections (‘0–0.5 cm’, ‘0.5–1.0 cm’, ‘1.0–1.5 cm’ and ‘1.5–2.0 cm’; site 1 also 'fluff') and CTG-labelled to identify living foraminifera. Nonionella stella specimens were selected and bleached (NaOCl 5%) prior to epoxy-embedding. Trace element concentrations of test walls were analysed using a CAMECA ims1280 ion microprobe (Nordsim Laboratory, Swedish Museum of Natural History, Stockholm, Sweden); an OKA calcite crystal served as reference material.
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3
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Data collection
Data collection
Description of the mode of collection:
Secondary Ion Mass Spectrometry (trace-elemental analysis)
Time period(s) for data collection:
2019-03-09 - 2019-03-15
Geographic coverage
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Geographic description:
Santa Barbara Basin, continental Southern California Borderland, USA; Eastern Pacific
Administrative information
Administrative information
Responsible department/unit:
Department of Geology, Lund University
Contributor(s):
- Andrea Somogyi – Nanoscopium Synchrotron SOLEIL
- Sha Ni – Lund University
- Magali Schweizer – Angers University, France - Laboratory of Recent and Fossil Bio-Indicators (BIAF)
- Veronique Elaine Oldham – University of Rhode Island, USA
- Nadine Quintana Krupinski – Lund University
- Kadda Medjoubi – Nanoscopium Synchrotron SOLEIL
- Martin Whitehouse – NordSIM, Swedish Museum of Natural History - Laboratory for Isotope Geology
- Colleen M. Hansel – Woods Hole Oceanographic Institution
- Christine Barras – Angers University, France - Laboratory of Recent and Fossil Bio-Indicators (BIAF)
- Joan M. Bernhard – Woods Hole Oceanographic Institution
- Helena L. Filipsson – Lund University
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Funding agency:
- Royal Physiographic Society in Lund, Sweden
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- US National Science Foundation
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Funding agency:
- Crafoord Foundation
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- Swedish Research Council VR
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Funding agency:
- NordSIM, Swedish Museum of Natural History
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Citation:
Brinkmann, I., Ni, S., Schweizer, M., Oldham, V. E., Quintana Krupinski, N. B., Medjoubi, K., et al. (2021). Foraminiferal Mn/Ca as bottom-water hypoxia proxy: An assessment of Nonionella stella in the Santa Barbara Basin, USA. Paleoceanography and Paleoclimatology, 36, e2020PA004167. https://doi.org/10.1029/2020PA004167
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