Project information
The interaction of metamict minerals and hydrothermal fluids and its significance in the geological environment
- Project Identification
- KJB301630801
- Project Period
- 1/2008 - 12/2010
- Investor / Pogramme / Project type
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Academy of Sciences of the Czech Republic
- The research grant projects for juniors
- MU Faculty or unit
- Faculty of Science
- Keywords
- accessory minerals; metamict state; mineralized hydrothermal fluids; laboratory experiments; EMP and HRTEM study
- Cooperating Organization
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Institute of Inorganic Chemistry of the ASCR, v. v. i.
- Responsible person RNDr. Mariana Klementová, Ph.D.
The aim of this study is investigate the interaction of metamict minerals with mineralized hydrothermal fluids. This study will by focused on: incorporation of ions from hydrothermal solutions in to metamict matter, structural changes during this interaction, ionic exchange and diffusion mechanisms, correlation between amount of nonformula elements and degree of radiation damage, determination of percolation points for studied minerals Interaction of metamict minerals and mineralized fluids will be performed at laboratory experiments. Metamict zircon, thorite, xenotime-(Y), fergusonite and nonmetamict ones will be treated in mineralized solutions at temperatures 200 to 350°C. This study can contribute to investigation of incorporation of mobile elements to metamict matter; the ionic exchange during this incorporation; metamict minerals as indicators of low temp. alteration during geological processes; assess the behavior of zircon and Nb-Ti oxide-like nuclear waste forms.
Publications
Total number of publications: 10
2012
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Allanite-(Nd), CaNdAl2Fe2+(SiO4)(Si2O7)O(OH), a new mineral from Askagen, Sweden
American Mineralogist, year: 2012, volume: 97, edition: 5-6, DOI
2011
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Concurrent treatment of metamict and crystalline fergusonite by U, Th and Pb-rich fluids:an EMPA and TEM study
Asociation Geologica Argentina, Series D., year: 2011, volume: 14, edition: 1
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Uranium–niobium-rich alteration products after “písekite”, an intimate mixture of Y, REE, Nb, Ta, Ti-oxide minerals from the Obrázek I pegmatite, Písek, Czech Republic
Journal of Geosciences, year: 2011, volume: 56, edition: 3
2010
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Preservation of samarskite structure in a metamict ABO4 mineral: a key to crystal structure identification
European Journal of Mineralogy, year: 2010, volume: 22, edition: 3
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The hydrothermal recrystallization of metamict allanite-(Ce)
Canadian Mineralogist, year: 2010, volume: 48, edition: 3
2009
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Hydrothermal reconstruction of crystal structure of pegmatitic allanite
Estudos Geologicos, year: 2009, volume: 19, edition: 2
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Interaction of metamict fergusonite-(Y) with mineralized hydrothermal fluids
Estudos Geologicos, year: 2009, volume: 19, edition: 2
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Studie zirkonu z alkalického syenitu od Naloučan, moldanubikum
Acta Mus. Moraviae, Sci.geol., year: 2009, volume: 94, edition: 1
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The involvement of F CO2-, and As in the alteration of Zr-Th-REE-bearing accessory minerals in a the Hora Svaté Kateřiny A-type granite, Czech Republic.
Canadian Mineralogist, year: 2009, volume: 47, edition: 6
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U-Th-rich zircon, thorite and allanite-(Ce) as a main carriers of radioactivity in the highly radioactive ultrapotassic melasyenite porphyry from the Šumava Mts., Moldanubian Zone, Czech Republic
Journal of Geosciences, year: 2009, volume: 54, edition: 4