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National Repository of Grey Literature 35 records found  beginprevious31 - 35  jump to record: Search took 0.00 seconds. 
Mineralogic analyses of samples from karst sediments in the UAE : final report
 Skála, Roman ; Zupan Hajna, N. ; Bosák, Pavel
Neveřejné do 1. 1. 2015
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X-ray diffraction analyses of samples from cave fills in Slovenia, 3 : final report
 Bosák, Pavel ; Skála, Roman ; Mihevc, A.
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X-ray diffraction analyses of samples from karst sediments in Slovenia, 2 : final report
 Bosák, Pavel ; Skála, Roman ; Zupan Hajna, N.
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Mineralogic analysis of samples from karst sediments in Slovenia, 4. : final report
 Bosák, Pavel ; Skála, Roman ; Zupan Hajna, N. ; Otoničar, B. ; Dobrovolný, Jiří ; Langrová, Anna
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Chemical composition of moldavites from the Cheb Basin and their relationship to other tektites of the Central European strewn field
 Skála, Roman
Basic physical properties (weight, shape, color and sculpture) were evaluated for over 350 individual finds of tektites from 4 different localities in the Cheb Basin. They are similar to those observed for South Bohemian moldavites. Totally, 24 tektites from the Cheb Basin and 17 from the South-Bohemian and Moravian substrewnfields have been characterized chemically using EPMA. Contents of major elements overlap between the two sample sets covering a broad range; trends observed in the Harker plots, however, seem to differentiate several partial groups. Minor and trace elements have been measured with an LA-ICP-MS technique. Preliminary 40Ar/39Ar dating shows that Cheb tektites are coeval with moldavites from South Bohemia and Western Moravia. Finding of a new moldavite substrewnfield around Cheb substantiate the theory that moldavites were ejected from the Ries impact structure in a fan-shaped jet.
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National Repository of Grey Literature : 35 records found   beginprevious31 - 35  jump to record:
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2 Skala, Richard
10 Skala, Roman
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