Z. Řanda
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View article: Geochemical constraints on the origin of phonolites from the Lužické hory Mts., the Ohře (Eger) Rift, Bohemian Massif
Geochemical constraints on the origin of phonolites from the Lužické hory Mts., the Ohře (Eger) Rift, Bohemian Massif Open
Geochemical and petrological data are reported for phonolites of the Lužické hory Mts. in the northeastern part of the Ohře (Eger) Rift near the junction with the Lusatian Fault. The phonolites of the Lužické hory Mts. are enriched in inco…
View article: Instrumental Photon Activation Analysis with Short-Time Irradiation for Geochemical Research
Instrumental Photon Activation Analysis with Short-Time Irradiation for Geochemical Research Open
This paper introduces instrumental photon activation analysis (IPAA) utilizing short-lived products of photonuclear reactions, mainly (γ, n) and (γ, p), initiated by bremsstrahlung from the MT-25 microtron. A rapid nondestructive IPAA meth…
View article: Non-destructive determination of nitrogen in malting barleys by instrumental photon activation analysis and its comparison with the Dumas method
Non-destructive determination of nitrogen in malting barleys by instrumental photon activation analysis and its comparison with the Dumas method Open
Instrumental photon activation analysis (IPAA) was used to measure the nitrogen content of malting barleys used in brewing and breeding in the Czech Republic. The study compares the fast and non-destructive IPAA method with the classical D…
View article: Zhamanshin astrobleme provides evidence for carbonaceous chondrite and post-impact exchange between ejecta and Earth’s atmosphere
Zhamanshin astrobleme provides evidence for carbonaceous chondrite and post-impact exchange between ejecta and Earth’s atmosphere Open
Chemical fingerprints of impacts are usually compromised by extreme conditions in the impact plume, and the contribution of projectile matter to impactites does not often exceed a fraction of per cent. Here we use chromium and oxygen isoto…