 | Skála, R., Jonášová, Š., Žák, K., Ďurišová, J., Brachaniec, T., Magna, T. (2016) New constraints on the Polish moldavite finds: a separate sub-strewn field of the central European tektite field or re-deposited materials?. Journal of GEOsciences, 61 (2) 171-191 | Journal (article/letter/editorial) | | Original paper New constraints on the Polish moldavite finds: a separate sub-strewn field of the central...Geology, The Czech Academy of Sciences, Rozvojová 269, 165 00 Prague 6, Czech Republic; skala@gli.cas...University in Prague, Albertov 6, 128 43 Prague 2, Czech Republic 3 Department of Geochemistry, Mineralogy and...Sosnowiec, Poland 4 Czech Geological Survey, Klárov 3, 118 21 Prague 1, Czech Republic * Corresponding author...geographically limited areas in Central Europe: South Bohemia, Western Bohemia (Cheb Basin), Western Moravia |  | | Journal (article/letter/editorial) | | com/locate/gca Moldavites from the Cheb Basin, Czech Republic Roman Skála a,b,*, Ladislav Strnad b, Catherine...Sciences of the Czech Republic, Rozvojová 269 CZ-16500 Praha 6 – Lysolaje, Czech Republic Institute of...Science, Charles University CZ-12843 Praha 2, Czech Republic c Bayerisches Geoinstitut, Universität Bayreuth...Němcové 386, CZ-351 01 Františkovy Lázně, Czech Republic Received 13 May 2008; accepted in revised...1993 and 2007, an estimated 2500–3000 individual moldavite pieces have been found in the Tertiary Cheb Basin |  | | Journal (article/letter/editorial) | | INTRODUCTION To date, only four tektite strewn fields have been recognized, namely the Central European...American, Australasian, and Ivory Coast strewn fields (Koeberl [2007] and references therein). The source...over the areas of three current countries: the Czech Republic, Germany, and Austria. These tektites have...offler et al. (2002) outlined the pattern of the moldavite strewn field in Central Europe. Based on experimental...Stanisław quarry that host the moldavite horizon are shown in Fig. 2. The moldavite horizon is up to 2.2 m thick |  | | Journal (article/letter/editorial) | | fluvial transport based on the most distal Polish moldavite occurrences Tomasz BRACHANIEC * Department of...ejecta, scattered over the territory of the Czech Republic (Trnka and Houzar 2002), Lausitz area in Germany...distribution of proximal and distal Ries ejecta. Due to moldavite reworking and redeposition, they occur in the...the age of two Czech moldavites-bearing deposits, the Domanin Formation and the Moravian colluvio-fluvial...In order to test this suggested long-distance moldavite transport, tumbling experiments were conducted |  | | Journal (issue) | | Borneo Asterism in Moldavite from ‘Mercedes-Star’ Chlum, Czech Quartz Republic Cause of Colour and...Asterism in ‘Mercedes-Star’ Moldavite from Chlum, Czec Quartz h Republic / No. 7 / 2023 Cause of Colour...Thanh Nhan Bui and Jacques Fereire Moldavite from Chlum, Czech Republic: Mining and Gem Properties 696...Lab, Shanghai, China Jaroslav Hyršl Prague, Czech Republic Menahem Sevdermish Gemewizard Ltd, Ramat Gan...Frederick ‘Lin’ Sutherland Port Macquarie, New South Wales, Australia Pornsawat Wathanakul Kasetsart |  | | Journal (article/letter/editorial) | | moldavites from the Bohemian and Lusatian strewn fields WINFRIED H. SCHWARZ* AND HANS J. LIPPOLT Laboratorium...from southern Bohemia (near Ceske Budejovice, Czech Republic) and a tektite from Lusatia (near Dresden,...Tertiary sediments in Bohemia and Moravia, Czech Republic (Suess, 1900). They are tektites (i.e., glasses...InBohemia and Moravia several well-known moldavite strewn fields have been distinguished (Bouska, 1998;...of the tektites in these fields. In 1967, H. Nicht recognized that moldavite-like tektites occur in late |  | | Journal (article/letter/editorial) | | Northrm Trrla~~l Geology and stratigraphy of moldavite occurrences VLADIK~R Department of Mineralogy...southern Bohemia and in southwestern Moravia. Moldavite occurrences can be divided into three groups:...courses To date I have no reliable evidence of a moldavite find in undisplaced eluvium. An explicit and safe...formulated. There exists evidence showing that the moldavite-bearing gravels are younger than the Mydlovary...The present research, however, shows that the moldavite-bearing gravels are also younger than the Ledenice |  | Řanda, Zdeněk, Mizera, Jiří, Frána, Jaroslav, KuČEra, Jan (2008) Geochemical characterization of moldavites from a new locality, the Cheb Basin, Czech Republic. Meteoritics & Planetary Science, 43 (3) 461-477 doi:10.1111/j.1945-5100.2008.tb00666.x | Journal (article/letter/editorial) | | moldavites from a new locality, the Cheb Basin, Czech Republic ZdenÏk ÿANDA1, Ji¯í MIZERA1, 2*, Jaroslav FRÁNA1...Institute, Academy of Sciences of the Czech Republic, 250 68 ÿež, Czech Republic of Rock Structure and Mechanics...of Sciences of the Czech Republic, V HolešoviËkách 41, 182 09 Praha 8, Czech Republic *Corresponding author...moldavites with moldavites from other substrewn fields in both major and trace element composition shows...(namely Ba and Sr), group 3 also resembles the Moravian moldavites. Significant positive correlations |  | | Journal (article/letter/editorial) | | EMPG XIV symposium, Kiel, Germany (March 2012) Moldavite porosity: a 3-D X-ray micro-tomography study ULRIKE...are found in different strewn fields with corresponding sub-strewn fields (Heide & Heide, 2011; Rantzsch...Central European strewn field with their sub-strewn fields (in light grey). The Ries impact structure with...The corresponding tektites are found in the Czech Republic, in the Bohemian sub-strewn field (Skála et...to as sub-strewn fields. These sub-strewn fields are the South-Bohemian, the Moravian (Bouška & Konta |  | | Journal (article/letter/editorial) | | Bohemian and Moravian parts of the moldavite strewn field, which is thus shown to extend further south than previously...fluviatile transport. The geologicalsetting of the moldavite-bearing sediments is similar to the Czechoslovakian...unambiguous association with either the Bohemian or the Moravian group is evident either for the major or trace...tektite strewn fields (Australasian, North American, Czechoslovakian, and Ivory Coast strewn fields) and are...the geographical terms used for the other strewn fields, is not completely correct. Moldavites have also |  | | Journal (article/letter/editorial) | | and Mechanics, Academy of Sciences, Prague, Czech Republic *Corresponding author. E-mail: m.laurenzi@igg...of the study were to define more precisely the moldavite formation age and provide a good calibration for...individual specimens from the Southern Bohemian and Moravian subfields are restricted to a narrow interval...glasses that can be found in only 4 “classic” strewn fields in North America, Central Europe, the Ivory Coast...conditions that are still largely unknown because strewn fields are far less numerous than known impact craters |  | | Journal (article/letter/editorial) | | large numbers of values characterize Bohemian and Moravian localities. Moldavites from most localities in...have moldavites with morphological features of Moravian moldavites. The data obtained permit an interpretation...a few k m b y water, a n d the original strewn fields m u s t have been very small.' K o n t a and Mr~tz...the source area (Ries Crater) a n d the strewn fields. Shape p a r a m e t e r s o f tektites such as...Bohemian moldavites was less heated than that of Moravian moldavites. From the studies of Barnes and of |  | Žák, Karel, Skála, Roman, Řanda, Zdeněk, Mizera, Jiří, Heissig, Kurt, Ackerman, Lukáš, Ďurišová, Jana, Jonášová, Šárka, Kameník, Jan, Magna, Tomáš (2016) Chemistry of Tertiary sediments in the surroundings of the Ries impact structure and moldavite formation revisited. Geochimica et Cosmochimica Acta, 179. 287-311 doi:10.1016/j.gca.2016.01.025 | Journal (article/letter/editorial) | | surroundings of the Ries impact structure and moldavite formation revisited Karel Žák , Roman Skála, Zdeněk...surroundings of the Ries impact structure and moldavite formation revisited, Geochimica et Cosmochimica...surroundings of the Ries impact structure and moldavite formation revisited Karel Žáka,*, Roman Skálaa...Geology, The Czech Academy of Sciences, Rozvojová 269, CZ-165 00 Prague 6, Czech Republic; zak@gli.cas...Institute, The Czech Academy of Sciences, Hlavní 130, CZ-250 68 HusinecŘež, Czech Republic; randa@ujf.cas |  | Schmieder, Martin, Kennedy, Trudi, Jourdan, Fred, Buchner, Elmar, Reimold, Wolf Uwe (2018) A high-precision 40Ar/39Ar age for the Nördlinger Ries impact crater, Germany, and implications for the accurate dating of terrestrial impact events. Geochimica et Cosmochimica Acta, 220. 146-157 doi:10.1016/j.gca.2017.09.036 | Journal (article/letter/editorial) | | Brasília, Brazil. Ar/39Ar dating of specimens of moldavite, the formation of which is linked to the Ries..., 2013); or in the SUBO 18 drill core from the south-central Ries near Enkingen, where melt-matrix breccia...which have been found in Bohemia and Moravia, Czech Republic (e.g., Stöffler et al., 2002; Trnka and Houzar...Jourdan et al., 2012), listing the 40Ar/39Ar moldavite age value of Di Vincenzo and Skála (2009) recalculated...combination with a 40Ar/39Ar age of 14.8 ± 0.2 Ma for a moldavite found between the two tuff layers, this dating |  | | Journal (article/letter/editorial) | | performed on 57 moldavite samples from different substrewn-fields in Germany and the Czech Republic. The extracted...there is no direct correlation between substrewn-fields and CL characteristics. Nevertheless, CL microscopy...tektites in general to differentiate individual strewn-fields on Earth (e.g., Piacenza 1997; Gucsik et al. 2004;...of the Engelhardt et al. 2005; Z structure of moldavite glasses in combination with their chemical composition...showing the Ries crater and its tektite ejecta (moldavite strewnfield) with the investigated sample localities |  | | Journal (article/letter/editorial) | | 249-251. The word"Moldavite" is a special term used for tektites found in a small area of south Bohemia and...the strip extending in a southwesterly direction south of the city of ~esk6 Bud~joviceand in Moravia they...(1962) and Gentner (1961) have suggested that a moldavite-strewn field may have resulted from the same impact...km) between the Ries crater and the Czech moldavite-strewn fields located in only two narrow bands, makes...The most surprising fact is that Bohemian and Moravian moldavites are associated with granulite. There |  | Rodovská, Zuzana, Magna, Tomáš, Žák, Karel, Skála, Roman, Brachaniec, Tomasz, Visscher, Channon (2016) The fate of moderately volatile elements in impact events-Lithium connection between the Ries sediments and central European tektites. Meteoritics & Planetary Science, 51 (12) 2403-2415 doi:10.1111/maps.12733 | Journal (article/letter/editorial) | | Channon VISSCHER 1 Czech Geological Survey, Kl arov 3, CZ-118 21 Prague 1, Czech Republic Faculty of Science...Albertov 6, CZ-128 43 Prague 2, Czech Republic 3 Institute of Geology, The Czech Academy of Sciences, Rozvojov...Rozvojov a 269, CZ-165 00 Prague 6, Czech Republic 4 Department of Geochemistry, Mineralogy, and Petrology...tektites (moldavites) from several substrewn fields (South Bohemia, Moravia, Cheb Basin, Lusatia), including...distributed over the areas of four countries (Czech Republic, Poland, Germany, Austria; Trnka and Houzar |  | | Journal (article/letter/editorial) | | the American, European, and Australasian strewn fields. The main experimental technique used in the studies...individualized from other australasites, unlike the moldavite, which tends to cluster with them. Our analyses...over several vast strewn fields on the Earth’s surface. Four strewn fields have been well-established:...well-established: moldavites in Europe, in the Czech Republic (the only ones that are light-green and translucent);...in the largest strewn field, which ranges from South Asia to the Antarctic Ocean [7]. Enclosed in the |  | Magna, T., Deutsch, A., Mezger, K., Skála, R., Seitz, H.-M., Mizera, J., Řanda, Z., Adolph, L. (2011) Lithium in tektites and impact glasses: Implications for sources, histories and large impacts. Geochimica et Cosmochimica Acta, 75 (8) 2137-2158 doi:10.1016/j.gca.2011.01.032 | Journal (article/letter/editorial) | | Münster, Germany b Czech Geological Survey, Klárov 3, CZ-118 21 Prague 1, Czech Republic c Institut für...of Sciences of the Czech Republic, Rozvojová 269, CZ-165 00 Prague 6, Czech Republic f Institut für Geowissenschaften...Academy of Sciences of the Czech Republic, CZ-250 68 Řež, Czech Republic Received 13 August 2010; accepted...Vincenzo and Skála, 2009) Central European (moldavite) strewn field produced in the Ries cratering event...from the three different strewn subfields in the Czech Republic. All samples are greenish glasses of different |  | Rodovská, Zuzana, Magna, Tomáš, Žák, Karel, Kato, Chizu, Savage, Paul S., Moynier, Frédéric, Skála, Roman, Ježek, Josef (2017) Implications for behavior of volatile elements during impacts-Zinc and copper systematics in sediments from the Ries impact structure and central European tektites. Meteoritics & Planetary Science, 52 (10) 2178-2192 doi:10.1111/maps.12922 | Journal (article/letter/editorial) | | Roman SKALA 1 Czech Geological Survey, Kl arov 3, CZ-118 21 Prague 1, Czech Republic Faculty of Science...Albertov 6, CZ-128 43 Prague 2, Czech Republic 3 Institute of Geology, The Czech Academy of Sciences, Rozvojov...Rozvojov a 269, CZ-165 00 Prague 6, Czech Republic 4 Institut de Physique du Globe de Paris, Universite...not fully constrained. To further understand moldavite genesis, the Cu and Zn abundances and isotope...suite of tektites from four different substrewn fields (South Bohemia, Moravia, Cheb Basin, Lusatia) and chemically |  | | Journal (article/letter/editorial) | | been described from three substrewn fields in the Czech Republic, Germany, and Austria (Trnka and Houzar...(Pannonian age; Szynkiewicz 2011). Herein, the moldavite-bearing sediments are typical fluvial deposits...Brachaniec et al. A B C D E Fig. 1. A) Map of moldavite distribution in Central Europe with inferred direction...transport of tektites to SW Poland. The substrewn fields (excluding the Polish area) are marked following...Gozdnica sandpit and a close-up of sediments in the moldavite-bearing zone. D) General view of the Gozdnicka |  | Žák, Karel, Skála, Roman, Pack, Andreas, Ackerman, Lukáš, Křížová, Šárka (2019) Triple oxygen isotope composition of Australasian tektites. Meteoritics & Planetary Science, 54 (5) 1167-1181 doi:10.1111/maps.13251 | Journal (article/letter/editorial) | | Geology of the Czech Academy of Sciences, Rozvojov a 269, CZ-165 00 Praha 6, Czech Republic 2 Geowissenschaftliches...University, Albertov 6, CZ-128 43 Praha 2, Czech Republic * Corresponding author. E-mail: zak@gli.cas...geographically limited regions, so-called strewn fields. Their origin is connected with hypervelocity impacts...al. 2008; Sk ala et al. 2009). In these strewn fields, the sizes of the known Muong Nong-type tektites...bediasite: 150 ppm, one sample, Moore et al. 1984; moldavite: 160 ppm, one sample, Moore et al. 1984; ak |  | | Journal (article/letter/editorial) | | distributed over three specific areas: the Czech Republic (Bohemia, Moravia and near Cheb), Lusatia (SE...Brachaniec et al. (2014, 2015) described a new moldavite distribution area in SW Poland. In this paper...SW POLAND Text-fig. 1. A – Sketch-map of new moldavite finds in the East and West Gozdnica pits (SW Poland)...weight varies from 0.529 to 1.196 g. The largest moldavite is 3 cm long and 1 cm wide (Text-fig. 2A). All...Their length varies from 20 to 300 µm. The single moldavite from the West Gozdnica pit weights 0.685 g (Text-fig |  | | Journal (article/letter/editorial) | | 1964), the bediasites (Cruo, 1963), and various South East Asian tektites (SCENETZLER and PINSON, 1964a)...Bohemian “strewn field” and six moldavites from the Moravian field were analyzed for major element contents...unreliable at the low concentrations found in the moldavite samples. For the same reason, determinations of...In order to determine the suitability of the moldavite powdered samples for X-ray fluorescence analysis...between the two sets of results was 0.04% K. The moldavite samples were prepared for SiO, and Also, analyses |  | | Journal (article/letter/editorial) | | different Rt, Ra and D data concerning their strewn fields. We suggest that the applied methods are appropriate...the description of tektites from different strewn fields have been well reported. In particular, geochemical...2005, 2006) as well as in other related scientific fields. For example, Orford and Whalley (1983) used the...Sample Description Tektites from different strewn fields were the object of this investigation (Fig. 1)...and the moldavite (MO-CH 1) belonged to the Cheb sub-strewn field in the Karlovy Vary region. Math |
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