| Attributes | Values |
|---|
| rdf:type
| |
| Description
| - Common pegmatites with pockets lined with crystals of smoky quartz, feldspars, muscovite, and black tourmaline commonly occur in migmatized biotite-sillimanite gneisses and felsic granulites of the Strážek Unit, Moldanubian Zone, in the Czech Republic. Mostly concordant dikes or irregular bodies (0.1-2 m thick) consisting of an outer granitic unit, a graphic unit and a pocket unit with large crystals (up to 1 m long) of minerals show transitional to locally sharp contacts to the host migmatized rocks. Thin muscovite-rich veins, 1-10 cm thick, with the assemblage muscovite ? albite, quartz and tourmaline are closely associated spatially. Variable prismatic to lens-shaped tourmaline crystals and their aggregates, up to 30 cm across, from pockets and muscovite-rich veins exhibit striking zoning in the optical microscope (distinct colors and pleochroism) and in BSE images: core (foitite - schorl - magnesio-foitite), intermediate zone (schorl - dravite) and narrow outer rim (schorl - dravite); tourmaline from muscovite veins is relatively homogeneous (dravite - magnesio-foitite). A slight decrease in X-site vacancy, in Fetot/(Fetot + Mg) and Al contents but sharp increase of Ti from the core to intermediate zone and outer rim, respectively, are typical. Also, the LA-ICP-MS study of a single crystal of tourmaline from a pocket demonstrates a very similar chemical composition of core and intermediate zone, but a distinct composition of outer rim; Mn, Ni, Zn, Sc and Ga decrease, and V, Cr, Co and Sr increase in the rim. Nearly all Fe was determined as Fe2+ ({3% of Fe3+ in both core and intermediate zones of the tourmaline) using Mössbauer spectroscopy.
- Common pegmatites with pockets lined with crystals of smoky quartz, feldspars, muscovite, and black tourmaline commonly occur in migmatized biotite-sillimanite gneisses and felsic granulites of the Strážek Unit, Moldanubian Zone, in the Czech Republic. Mostly concordant dikes or irregular bodies (0.1-2 m thick) consisting of an outer granitic unit, a graphic unit and a pocket unit with large crystals (up to 1 m long) of minerals show transitional to locally sharp contacts to the host migmatized rocks. Thin muscovite-rich veins, 1-10 cm thick, with the assemblage muscovite ? albite, quartz and tourmaline are closely associated spatially. Variable prismatic to lens-shaped tourmaline crystals and their aggregates, up to 30 cm across, from pockets and muscovite-rich veins exhibit striking zoning in the optical microscope (distinct colors and pleochroism) and in BSE images: core (foitite - schorl - magnesio-foitite), intermediate zone (schorl - dravite) and narrow outer rim (schorl - dravite); tourmaline from muscovite veins is relatively homogeneous (dravite - magnesio-foitite). A slight decrease in X-site vacancy, in Fetot/(Fetot + Mg) and Al contents but sharp increase of Ti from the core to intermediate zone and outer rim, respectively, are typical. Also, the LA-ICP-MS study of a single crystal of tourmaline from a pocket demonstrates a very similar chemical composition of core and intermediate zone, but a distinct composition of outer rim; Mn, Ni, Zn, Sc and Ga decrease, and V, Cr, Co and Sr increase in the rim. Nearly all Fe was determined as Fe2+ ({3% of Fe3+ in both core and intermediate zones of the tourmaline) using Mössbauer spectroscopy. (en)
|
| Title
| - Compositional evolution of zoned tourmaline crystals from pockets in common pegmatites of the Moldanubian zone, Czech Republic
- Compositional evolution of zoned tourmaline crystals from pockets in common pegmatites of the Moldanubian zone, Czech Republic (en)
|
| skos:prefLabel
| - Compositional evolution of zoned tourmaline crystals from pockets in common pegmatites of the Moldanubian zone, Czech Republic
- Compositional evolution of zoned tourmaline crystals from pockets in common pegmatites of the Moldanubian zone, Czech Republic (en)
|
| skos:notation
| - RIV/61989592:15310/12:33141928!RIV13-MSM-15310___
|
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(ED2.1.00/03.0058), P(GAP210/10/0743), Z(MSM0021622412)
|
| http://linked.open...iv/cisloPeriodika
| |
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/61989592:15310/12:33141928
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - foitite, schorl, dravite, magnesio-foitite, compositional evolution, zoning, pocket, common pegmatite, Moldanubian Zone, Czech Republic (en)
|
| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| |
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...i/riv/nazevZdroje
| |
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Filip, Jan
- Gadas, Petr
- Novák, Milan
- Staněk, Josef
- Vašinová - Galiová, Michaela
|
| http://linked.open...ain/vavai/riv/wos
| |
| http://linked.open...n/vavai/riv/zamer
| |
| issn
| |
| number of pages
| |
| http://bibframe.org/vocab/doi
| |
| http://localhost/t...ganizacniJednotka
| |
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