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Jak powstały Kratery Morasko? Rewizja istniejących poglądów dotyczących genezy zagłębień w rezerwacie pod Poznaniem

100%
Bronikowska M.
Acta Societatis Metheoriticae Polonorum
|
2018
|
vol. 9
30-41
EN
Althought the first Morasko meteorite has been found over 100 years ago, the discussion about the Morasko strewn field and cratersis is still ongoing. In this paper, the revision of existing opinions on the Morasko craters formation and origin is conducted regarding to numerical modeling results and current knowlage about impact cratering procssess.
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Zastosowanie neutronowej analizy aktywacyjnej NAA do identyfikacji materii pochodzenia kosmicznego na Ziemi

75%
Tymiński Z., Mysłek-Laurikainen B.
Acta Societatis Metheoriticae Polonorum
|
2009
|
vol. 1
97-100
EN
Neutron activation analysis (NAA) is an analytical method based on the measurement of characteristic radiation from radionuclides formed by neutron irradiation of the material of interest. The most suitable source of neutrons for NAA is a research reactor. The neutron activation analysis has been found to be extremely useful in the determination of trace and minor elements in geological and extraordinary samples. The method is non-destructive, giving many advantages, which are described. Measured abundances of the elements in meteorites, from major constituents down to those appearing only in trace amounts, provide information important for the theories of the origin and history of the Solar System.
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