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Scheibengraben Pegmatite

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Journal Article

Extreme variation and apparent reversal of Nb-Ta fractionation in columbite-group minerals from the Scheibengraben beryl-columbite granitic pegmatite, Maršíkov, Czech Republic

Milan NOVÁK, Peter ČERNÝ, Pavel UHER
Published: 01 May 2003
European Journal of Mineralogy (2003) 15 (3): 565–574.
DOI: https://doi.org/10.1127/0935-1221/2003/0015-0565
...Milan NOVÁK; Peter ČERNÝ; Pavel UHER Abstract Compositional variation was studied in columbite-group minerals from the beryl-columbite pegmatite at Scheibengraben, Maršíkov, Northern Moravia, Czech Republic. The pegmatite consists of five textural-paragenetic units, from the least to the most...
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Idealized cross-section through the <span class="search-highlight">Scheibengraben</span> <span class="search-highlight">pegmatite</span>.

Idealized cross-section through the Scheibengraben pegmatite.

Published: 01 May 2003
Fig. 2. Idealized cross-section through the Scheibengraben pegmatite.
Journal Article

Compositional and textural variations of columbite-group minerals from beryl-columbite pegmatites in the Maršíkov District, Bohemian Massif, Czech Republic: Magmatic versus hydrothermal evolution

Štěpán Chládek, Pavel Uher, Milan Novák
Published: 24 November 2020
The Canadian Mineralogist (2020) 58 (6): 767–783.
DOI: https://doi.org/10.3749/canmin.1900093
...) characteristics for CGM in the Bienergraben and Scheibengraben pegmatites, and (2) insignificantly decreasing Ta/(Ta + Nb) and strongly decreasing Mn/(Mn + Fe) characteristics for CGM in the Schinderhübel I and Lysá Hora pegmatites. Patchy zoning and secondary evolution in CGM result from metasomatic replacement...
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Compositions of Nb,Ta-oxide minerals from beryl type <span class="search-highlight">pegmatites</span> of the Herc...

Compositions of Nb,Ta-oxide minerals from beryl type pegmatites of the Herc...

Published: 01 May 2003
Fig. 5. Compositions of Nb,Ta-oxide minerals from beryl type pegmatites of the Hercynian belt, in the columbite quadrilateral (molecular proportions) compared to those of the Scheibengraben pegmatite (cross-hatched): a) Cap de Creus, eastern Pyrenees ( Alfonso et al. , 1995 ); b) Albera massif
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Primary compositional trends and secondary evolution of CGM from the studie...

Primary compositional trends and secondary evolution of CGM from the studie...

Published: 24 November 2020
Fig. 5. Primary compositional trends and secondary evolution of CGM from the studied pegmatites. (a) Extensive overlap of primary and secondary compositions (Scheibengraben). (b) Compositional variations in primary and secondary CGM (Schinderhübel I). Note the significant Fe enrichment
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BSE images of Nb–Ta minerals from the <span class="search-highlight">pegmatites</span>: (a) veinlets of Mic III c...

BSE images of Nb–Ta minerals from the pegmatites: (a) veinlets of Mic III c...

Published: 14 July 2021
Fig. 4. BSE images of Nb–Ta minerals from the pegmatites: (a) veinlets of Mic III crosscutting oscillatory zoned primary CGM replaced by patchy domains of secondary CGM (Scheibengraben); (b) part of the Fig. 4a : veinlets of Mic III crosscutting both oscillatory zoned primary CGM and patchy
Journal Article

Microlite-group minerals: tracers of complex post-magmatic evolution in beryl–columbite granitic pegmatites, Maršíkov District, Bohemian Massif, Czech Republic

Štěpán Chládek, Pavel Uher, Milan Novák, Peter Bačík, Tomáš Opletal
Published: 14 July 2021
Mineralogical Magazine (2021) 85 (5): 725–743.
DOI: https://doi.org/10.1180/mgm.2021.58
...Fig. 4. BSE images of Nb–Ta minerals from the pegmatites: (a) veinlets of Mic III crosscutting oscillatory zoned primary CGM replaced by patchy domains of secondary CGM (Scheibengraben); (b) part of the Fig. 4a : veinlets of Mic III crosscutting both oscillatory zoned primary CGM and patchy...
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Simplified cross-sections of the studied <span class="search-highlight">pegmatites</span>. (a) Maršíkov – Scheibe...

Simplified cross-sections of the studied pegmatites. (a) Maršíkov – Scheibe...

Published: 24 November 2020
Fig. 2. Simplified cross-sections of the studied pegmatites. (a) Maršíkov – Scheibengraben ( Novák et al . 2003 ; modified). (b) Maršíkov – Schinderhübel I. (c) Sobotín – Bienergraben. (d) Maršíkov – Lysá Hora.
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Idealised cross-sections of the <span class="search-highlight">pegmatites</span>: (a) Maršíkov – Schinderhübel I ...

Idealised cross-sections of the pegmatites: (a) Maršíkov – Schinderhübel I ...

Published: 14 July 2021
Fig. 2. Idealised cross-sections of the pegmatites: (a) Maršíkov – Schinderhübel I (Chládek et al. , 2020 , modified); (b) Maršíkov – Scheibengraben (Novák et al. , 2003 , modified); (c) Sobotín – Bienergraben (Chládek et al. , 2020 , modified).
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BSE images of Nb-Ta minerals from the studied <span class="search-highlight">pegmatites</span>. (a) Convolute osc...

BSE images of Nb-Ta minerals from the studied pegmatites. (a) Convolute osc...

Published: 24 November 2020
Fig. 4. BSE images of Nb-Ta minerals from the studied pegmatites. (a) Convolute oscillatory-zoned and (tongue-shaped) secondary columbite-(Mn) filling cracks in the rim of a primary tantalite-(Mn) crystal (Scheibengraben). (b) Crystal totally replaced by secondary CGM with irregular convolute
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Schematic geological map of the Bohemian Massif with the locations of the i...

Schematic geological map of the Bohemian Massif with the locations of the i...

Published: 17 March 2023
Figure 1. Schematic geological map of the Bohemian Massif with the locations of the investigated pegmatites: 1 – Ruprechtice; 2 – Vepice IV; 3 – Číměř I and III, Klučov III, Kožichovice I and II; 4 – Kracovice; 5 – Vlastějovice; 6 – Dražice; 7 – Drahonín IV; 8 – Věžná I; 9 – Maršíkov
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BSE images of Nb-Ta minerals from the studied <span class="search-highlight">pegmatites</span>. (a) Homogeneous b...

BSE images of Nb-Ta minerals from the studied pegmatites. (a) Homogeneous b...

Published: 24 November 2020
Fig. 3. BSE images of Nb-Ta minerals from the studied pegmatites. (a) Homogeneous bright domains of primary tantalite-(Mn) replaced by dark secondary homogeneous columbite-(Mn) (Bienergraben). (b) Relics of primary diffuse and oscillatory zoned tantalite-(Mn) replaced by patchy zoned irregular
Journal Article

Mineral assemblages and compositional variations in bavenite–bohseite from granitic pegmatites of the Bohemian Massif, Czech Republic

Milan Novák, Zdeněk Dolníček, Adam Zachař, Petr Gadas, Miroslav Nepejchal, Kamil Sobek, Radek Škoda, Luboš Vrtiška
Published: 17 March 2023
Mineralogical Magazine (2023) 87 (3): 415–432.
DOI: https://doi.org/10.1180/mgm.2023.17
...Figure 1. Schematic geological map of the Bohemian Massif with the locations of the investigated pegmatites: 1 – Ruprechtice; 2 – Vepice IV; 3 – Číměř I and III, Klučov III, Kožichovice I and II; 4 – Kracovice; 5 – Vlastějovice; 6 – Dražice; 7 – Drahonín IV; 8 – Věžná I; 9 – Maršíkov...
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Representative compositions of primary (P) and secondary (S) CGM from Marší...

Representative compositions of primary (P) and secondary (S) CGM from Marší...

Published: 14 July 2021
11.983 11.994 11.996 Total anions 24.000 24.000 24.000 24.000 24.000 24.000 Mn/(Mn+Fe) 0.74 0.57 0.69 0.69 0.55 0.56 Ta/(Ta+Nb) 0.44 0.50 0.47 0.46 0.47 0.26 Total range in individual pegmatites:       Pegmatite Schinderhübel I Scheibengraben Bienergraben CGM
Journal Article

Characterization of Nb-Ta oxides associated with the aplopegmatites from Tres Arroyos (Badajoz, Spain)

Idoia Garate-Olave, Encarnación Roda-Robles, Pedro Pablo Gil-Crespo, Alfonso Pesquera
Published: 30 September 2019
The Canadian Mineralogist (2019) 57 (5): 749–751.
DOI: https://doi.org/10.3749/canmin.AB00012
.... (2003) Extreme variation and apparent reversal of Nb-Ta fractionation in columbite-group minerals from the Scheibengraben beryl-columbite granitic pegmatite, Maršíkov, Czech Republic . European Journal of Mineralogy 15 , 565 – 574 . Roda-Robles...
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COMPOSITIONAL AND STRUCTURAL VARIATIONS IN COLUMBITE-GROUP MINERALS FROM GRANITIC PEGMATITES OF THE BRUNSWICK AND OXFORD FIELDS, MAINE: DIFFERENTIAL TRENDS IN F-POOR AND F-RICH ENVIRONMENTS

Michael A. Wise, Carl A. Francis, Petr Černý
Published: 01 December 2012
The Canadian Mineralogist (2012) 50 (6): 1515–1530.
DOI: https://doi.org/10.3749/canmin.50.6.1515
.... Czech. Geol. Soc . 46 , 1 – 8 . Novák M. Černý P. Uher P. ( 2003 ): Extreme variation and apparent reversal of Nb–Ta fractionation in columbite-group minerals from the Scheibengraben beryl–columbite pegmatite, Maršíkov, Czech Republic . Eur. J. Mineral . 15 , 565 – 574...
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Achalaite, Fe 2+ TiNb 2 O 8 , a New Member of the Wodginite Group from the La Calandria Granitic Pegmatite, CÓrdoba, Argentina

Miguel Ángel Galliski, María Florencia MÁrqueZ-ZavalÍa, Petr ČernÝ, Raúl Lira, Fernando Colombo, Andrew C. Roberts, Heinz-Jürgen Bernhardt
Published: 01 July 2016
The Canadian Mineralogist (2016) 54 (4): 1043–1052.
DOI: https://doi.org/10.3749/canmin.1500094
... and apparent reversal of Nb-Ta fractionation in columbite-group minerals from the Scheibengraben beryl-columbite granitic pegmatite, Maršikov, Czech Republic . European Journal of Mineralogy 15 , 565 – 574 . Pouchou, J.L...
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Representative compositions of microlite (Mic) and pyrochlore (Pcl) from Sc...

Representative compositions of microlite (Mic) and pyrochlore (Pcl) from Sc...

Published: 14 July 2021
of the element is below detection limit. Abbreviations: Sch – Scheibengraben, Bn – Bienergraben. A- , B – structural positions of pyrochlore structure. Mic III, IIId, Pcl III – microlite (Pcl – pyrochlore) types and at individual pegmatites. End-members of pyrochlore supergroup minerals (molecule
Journal Article

A Tribute To Milan Novák

Radek Škoda, Pietro Vignola, Axel Müller, Lee A. Groat
Published: 23 October 2018
The Canadian Mineralogist (2018) 56 (4): 357–363.
DOI: https://doi.org/10.3749/canmin.INT007
...., Černý, P., & Uher, P. (2003) Extreme variation and apparent reversal of Nb-Ta fractionation in columbite-group minerals from the Scheibengraben beryl-columbite pegmatite, Maršíkov, Czech Republic . European Journal...
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Complex Nb-ta-ti-sn Oxide Mineral Intergrowths in the La Calandria Pegmatite, CaÑada Del Puerto, CÓrdoba, Argentina

Miguel Ángel Galliski, María Florencia MÁrquez-ZavalÍa, Petr ČernÝ, Raúl Lira
Published: 01 July 2016
The Canadian Mineralogist (2016) 54 (4): 899–916.
DOI: https://doi.org/10.3749/canmin.1500095
..., P. (2003) Extreme variation and apparent reversal of Nb-Ta fractionation in columbite-group minerals from the Scheibengraben beryl-columbite granitic pegmatite, Maršíkov, Czech Republic . European Journal of Mineralogy 15 (3) , 565 – 574...
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