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Effect of barite-bound Sr on detrital Sr isotope systematics in marine sediments
Wu, J.; Liu, Z.; Michard, A.; Tachikawa, K.; Filippidi, A.; He, Z.; Hennekam, R.; Yang, S.; Davies, G.R.; de Lange, G.J. (2022). Effect of barite-bound Sr on detrital Sr isotope systematics in marine sediments. Chem. Geol. 587: 120613.
In: Chemical Geology. Elsevier: New York; London; Amsterdam. ISSN 0009-2541; e-ISSN 1872-6836, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Author keywords
    Strontium (Sr); Sr isotopes; Barite; Barium (Ba); Sapropel; Mediterranean Sea; Provenance; Marine sediments

Auteurs  Top 
  • Wu, J.
  • Liu, Z.
  • Michard, A.
  • Tachikawa, K.
  • Filippidi, A.
  • He, Z.
  • Hennekam, R., meer
  • Yang, S.
  • Davies, G.R.
  • de Lange, G.J.


    In marine sediments, the Sr content and isotope composition (87 Sr/86Sr) of the terrigenous detrital component are widely used to track changes in provenance and related transport and weathering processes. Accurately separating detrital-Sr from other sedimentary Sr-phases is a prerequisite for such studies. Conventionally, it is assumed that Sr in the carbonate-free residue corresponds to detrital Sr alone. However, the decarbonated residue may contain barite with significant Sr content and a non-detrital 87Sr/86Sr composition; this may substantially affect the measured Sr signal. To examine this chronically overlooked phenomenon, the Mediterranean Sea is an ideal areabecause 1) detailed provenance studies have been done using Sr and 87Sr/86Sr of the residual fraction, and 2) enhanced levels of barite repeatedly occurred in association with distinct, organic-rich sapropel sediments.

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