Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Zdeněk Řanda"'
Publikováno v:
Minerals, Vol 11, Iss 6, p 617 (2021)
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 method for ge
Externí odkaz:
https://doaj.org/article/ebc8a07766b14921abf865e34373d860
Autor:
Tomáš Magna, Karel Žák, Andreas Pack, Frédéric Moynier, Bérengère Mougel, Stefan Peters, Roman Skála, Šárka Jonášová, Jiří Mizera, Zdeněk Řanda
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Identifying the original impactor from craters remains challenging. Here, the authors use chromium and oxygen isotopes to indicate that the Zhamanshin astrobleme impactor was a carbonaceous chrondrite by demonstrating that depleted 17O values are due
Externí odkaz:
https://doaj.org/article/df2ca38323ae444f83d6a42865c76689
Autor:
Aleš Bezděk, Václav Suchý, Jiří Mizera, Jan Kostelecký, Zdeněk Řanda, Jaroslav Klokočník, Vladimír Strunga, Zdeněk Moravec
Australasian tektites represent the largest group of tektites on Earth, and their strewn field covers up to one sixth of Earth’s surface. After several decades of fruitless quest for a parent crater for Australasian tektites, mostly in the main par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85c8ef8f019bb2641d4054a60656728a
https://doi.org/10.1130/2021.2553(25)
https://doi.org/10.1130/2021.2553(25)
Autor:
Simona Krmíčková, Lukáš Krmíček, Zdeněk Řanda, Jaromír Ulrych, Emil Jelínek, Lukáš Ackerman, Jiří Mizera
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 incompatib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08376d3e6b45c5d29cc1361dcfcf5abd
https://doi.org/10.21203/rs.3.rs-1562514/v1
https://doi.org/10.21203/rs.3.rs-1562514/v1
Publikováno v:
Journal of the Institute of Brewing. 124:4-8
Autor:
Zdeněk Řanda, Jiří Mizera, Tomáš Magna, Karel Žák, Lukáš Ackerman, Šárka Jonášová, Roman Skála
Publikováno v:
Geochimica et Cosmochimica Acta. 210:59-70
Impact processes are natural phenomena that contribute to a variety of physico–chemical mechanisms over an extreme range of shock pressures and temperatures, otherwise seldomly achieved in the Earth’s crust through other processes. Under these ex
Autor:
Jaromír Ulrych, Lukáš Krmíček, Šárka Jonášová, Ferry Fediuk, Jiří Adamovič, Zdeněk Řanda, Claudia Teschner, Richard Pokorný, Roman Skála
Publikováno v:
Mineralogy and Petrology. 111:761-775
Tachylytes from rift-related volcanic rocks were recognized as: (i) irregular veinlets in host alkaline lava flows of the Kozakov volcano, Czech Republic, (ii) (sub)angular xenoliths in alkaline lava of the feeding channel of the Bukovec volcano, Cze
Autor:
Pavel Kotrba, Milan Gryndler, Zdeněk Řanda, Jaroslava Cejpková, Jan Borovička, Hana Hršelová, Iva Synková
Publikováno v:
Environmental Pollution. 218:176-185
Ectomycorrhizal (ECM) fungi contribute to the survival of host trees on metal-rich soils by reducing the transfer of toxic metals into roots. However, little is known about the ability of ECM fungi to accumulate elements in ectomycorrhizae (ECMs). He
Autor:
Roman Skála, Lukáš Ackerman, Jiří Mizera, Kurt Heissig, Šárka Jonášová, Jan Kameník, Karel Žák, Jana Ďurišová, Tomáš Magna, Zdeněk Řanda
Publikováno v:
Geochimica et Cosmochimica Acta. 179:287-311
Moldavites, tektites of the Central European strewn field, have been traditionally linked with the Ries impact structure in Germany. They are supposed to be derived mainly from the near-surface sediments of the Upper Freshwater Molasse of Miocene age
Publikováno v:
Earth-Science Reviews. 154:123-137
Tektites are natural glasses formed by the melting of Earth's surface materials during the impact of a large extraterrestrial body. At present, they are found in four main strewn fields associated with separate impacts: Central European (moldavites),