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Neutron and photon activation analyses in geochemical characterization of sediment profiles at the Jurassic-Cretaceous boundary
- 1.0331945 - ÚJF 2010 RIV HU eng J - Journal Article
Mizera, Jiří - Řanda, Zdeněk
Neutron and photon activation analyses in geochemical characterization of sediment profiles at the Jurassic-Cretaceous boundary.
[Neutronová a fotonová aktivační analýza při geochemické charakterizaci sedimentárních profilů na rozhraní jura-křída.]
Journal of Radioanalytical and Nuclear Chemistry. Roč. 282, č. 1 (2009), s. 53-57. ISSN 0236-5731. E-ISSN 1588-2780.
[MARC VIII (8th International Conference on Methods and Applications of Radionalytical Chemistry). Kailua-Kona, Hawai, 05.04.2009-10.04.2009]
Institutional research plan: CEZ:AV0Z10480505
Keywords : Jurassic-Cretaceous boundary * Brodno section * Neutron activation analysis
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 0.631, year: 2009
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.
Neutronová a fotonová aktivační analýza byly použity ke geochemické charakterizaci vzorků vápencového profilu v Brodnu (Slovensko), který je tvořen hemipalegickými mořskými sedimenty deponovanými na rozhraní jury a křídy v tethydní oblasti. V blízkosti vrstev považovaných podle posledních studiíí za rozhraní jura-křída byly zjištěny anomální obsahy niklu a antimonu.
Permanent Link: http://hdl.handle.net/11104/0005534
Number of the records: 1