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Wu, Jiawang; Liu, Zhifei; Michard, Annie; Tachikawa, Kazuyo; Filippidi, Amalia; He, Zhiwei; Hennekam, Rick; Yang, Shouye; Davies, Gareth R; de Lange, Gert J (2022): Effect of barite-bound Sr on detrital Sr isotope systematics in marine sediments with pertinent Mediterranean examples [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.946258

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Abstract:
Here we present the data of a sequential extraction scheme, which aims to evaluate the effect of barite-bound Sr in the residual fraction after decarbonation. The investigation is done with pertinent examples for Mediterranean sediments, focusing on the most-recent sapropel S1 interval. A total of 130 samples were taken from 10 cores in the eastern Mediterranean Sea (EMS) and 1 core in the western Mediterranean Sea. This selection represents a geographic and bathymetric coverage of the EMS and permits the basin-wide comparison between organic-rich and -lean sediments. After decarbonation using 1 M HCl solution, the residual sediments were subject to NH4Cl extraction (2 M, pH 7), known to selectively dissolve barite. Our results demonstrate the presence of Sr-bearing barite after traditional carbonate removal and its effect on the derived “detrital” Sr signature, with important implications for detrital provenance studies.
Keyword(s):
Barite; Barium (Ba); marine sediments; Mediterranean Sea; Provenance; sapropel; Sr isotopes; Strontium (Sr)
Supplement to:
Wu, Jiawang; Liu, Zhifei; Michard, Annie; Tachikawa, Kazuyo; Filippidi, Amalia; He, Zhiwei; Hennekam, Rick; Yang, Shouye; Davies, Gareth R; de Lange, Gert J (2022): Effect of barite-bound Sr on detrital Sr isotope systematics in marine sediments. Chemical Geology, 587, 120613, https://doi.org/10.1016/j.chemgeo.2021.120613
Funding:
China Postdoctoral Science Foundation, grant/award no. 2018M640418
China Postdoctoral Science Foundation, grant/award no. 2019T120352
European Commission (EC), grant/award no. MAS2-CT93-0051: European Programme (PALEOFLUX)
European Commission (EC), grant/award no. MAS3 CT97-0137: European Programme (SAP)
European Commission (EC), grant/award no. MAST1-90022C: European Programme (MARFLUX)
National Key Research and Development Program of China, grant/award no. 2018YFE0202402
National Natural Science Foundation of China (NSFC), grant/award no. 41806064
National Natural Science Foundation of China (NSFC), grant/award no. 42006060
Coverage:
Median Latitude: 36.230485 * Median Longitude: 21.909939 * South-bound Latitude: 33.375000 * West-bound Longitude: 4.510000 * North-bound Latitude: 39.661667 * East-bound Longitude: 32.666667
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
3 datasets

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Datasets listed in this bundled publication

  1. Wu, J; Liu, Z; Michard, A et al. (2022): Bulk sediment records of marine sediment cores from the Mediterranean Sea (Dataset S1). https://doi.org/10.1594/PANGAEA.946160
  2. Wu, J; Liu, Z; Michard, A et al. (2022): HCl-leaching results of marine sediment cores from the Mediterranean Sea (Dataset S2). https://doi.org/10.1594/PANGAEA.946184
  3. Wu, J; Liu, Z; Michard, A et al. (2022): NH4Cl-leaching results of marine sediment cores from the Mediterranean Sea (Dataset S3). https://doi.org/10.1594/PANGAEA.946254