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Neutron and photon activation analyses in geochemical characterization of sediment profiles at the Jurassic–Cretaceous boundary

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Abstract

As a part of a project aimed at precise correlation of the Jurassic–Cretaceous (J/K) boundary interval in the Tethyan and Boreal realms, neutron and photon activation analyses were employed in geochemical characterization of limestone samples from the Brodno section, Slovakia, which offers a record of hemipelagic marine sediments around the J/K boundary in the Tethyan realm. Nickel and antimony anomalies exceeding almost twenty times the levels in neighboring beds were found near the beds assigned recently to the J/K boundary. Elucidation of their origin (volcanism, isochronous meteoritic impact, concentrating in, e.g., sulfides) requires further investigation.

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Acknowledgement

This work was supported by the grant GA 205/07/1365 of the Czech Science Foundation.

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Authors and Affiliations

  1. Nuclear Physics Institute, Academy of Sciences of the Czech Republic, Řež 130, 250 68, Řež, Czech Republic

    J. Mizera & Z. Řanda

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  1. J. Mizera
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  2. Z. Řanda
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Correspondence to J. Mizera.

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Mizera, J., Řanda, Z. Neutron and photon activation analyses in geochemical characterization of sediment profiles at the Jurassic–Cretaceous boundary. J Radioanal Nucl Chem 282, 53–57 (2009). https://doi.org/10.1007/s10967-009-0187-3

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  • DOI: https://doi.org/10.1007/s10967-009-0187-3

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