Multi-scale visualization of uranium-rich domains dispersed in
U-Zr mineralization of sandstone-type (Břevniště, Czech
Republic)

J 2021

Multi-scale visualization of uranium-rich domains dispersed in U-Zr mineralization of sandstone-type (Břevniště, Czech Republic)

MIKYSEK, Petr; Tomáš ZIKMUND; Marek DOSBABA; Adam BŘÍNEK; Marek SLOBODNÍK et. al.

Základní údaje

Originální název

Multi-scale visualization of uranium-rich domains dispersed in U-Zr mineralization of sandstone-type (Břevniště, Czech Republic)

Autoři

MIKYSEK, Petr; Tomáš ZIKMUND; Marek DOSBABA; Adam BŘÍNEK; Marek SLOBODNÍK; Jiří ADAMOVIČ; Noemi MÉSZÁROSOVÁ; Tomáš TROJEK a Jozef KAISER

Vydání

Ore geology reviews, Amsterdam, Elsevier B.V. 2021, 0169-1368

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10504 Mineralogy

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.714

Kód RIV

RIV/00216224:14310/21:00119937

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1016/j.oregeorev.2021.104358

UT WoS

000702295900002

EID Scopus

2-s2.0-85111612528

Klíčová slova anglicky

Computed tomography; Automated mineralogy; Uranium deposit; Sandstones; Zirconium

Štítky

14315010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 13. 1. 2022 11:28, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Multi-level visualization of U-Zr mineralization in sandstones is discussed, aiming at the identification of mineral phases, imaging of their distribution using 2D and 3D projections, and quantification of the presence of U-rich domains. For this purpose, uranium-bearing sediments with anomalous concentrations of Zr, Nb ± Fe, Sr were studied (Břevniště deposit, Czech Republic). The applied multi-instrumental approach included selection of the most suitable areas in core samples (highest U and Zr concentrations) using X-ray fluorescence analysis (XRF). The presence of numerous detrital and authigenic accessories, hardly discernible using optical methods, was confirmed with the use of automated mineralogical analysis (TIMA). Hydrozircon and metacolloidal mixed phases were shown to be the carriers of uranium. Their close relationship to sulfides, Fe oxyhydroxides and clay minerals was documented using phase distribution maps. X-ray micro-computed tomography (μCT) was used for the visualization of internal structures of uranium-bearing sandstones. Based on a series of thresholding of μCT data, segmentation of selected samples was performed with subsequent visualization of selected mineral phases. The combination of TIMA and μCT analysis allowed for an effective discrimination of U-rich areas and quantification of their volume. This approach provides new possibilities in imaging elementary complex disseminated uranium mineralizations.

Návaznosti

EF16_026/0008459, projekt VaV

Název: Dlouhodobý výzkum geochemických bariér pro ukládání jaderného odpadu

TB010CBU002, projekt VaV

Název: Nové technologické možnosti dobývání ložisek uranu v ČR s ohledem na minimalizaci dopadů na životní prostředí a jejich legislativní zajištění

Investor: Technologická agentura ČR, Nové technologické možnosti dobývání ložisek uranu v ČR s ohledem na minimalizaci dopadů na životní prostředí a jejich legislativní zajištění

90110, velká výzkumná infrastruktura

Název: CzechNanoLab

Citovat

MIKYSEK, Petr; Tomáš ZIKMUND; Marek DOSBABA; Adam BŘÍNEK; Marek SLOBODNÍK; Jiří ADAMOVIČ; Noemi MÉSZÁROSOVÁ; Tomáš TROJEK a Jozef KAISER. Multi-scale visualization of uranium-rich domains dispersed in U-Zr mineralization of sandstone-type (Břevniště, Czech Republic). Ore geology reviews. Amsterdam: Elsevier B.V., 2021, roč. 138, November, s. 104358-104373. ISSN 0169-1368. Dostupné z: https://doi.org/10.1016/j.oregeorev.2021.104358.

@article{1820741,
   author = {Mikysek, Petr and Zikmund, Tomáš and Dosbaba, Marek and Břínek, Adam and Slobodník, Marek and Adamovič, Jiří and Mészárosová, Noemi and Trojek, Tomáš and Kaiser, Jozef},
   article_location = {Amsterdam},
   article_number = {November},
   doi = {https://doi.org/10.1016/j.oregeorev.2021.104358},
   keywords = {Computed tomography; Automated mineralogy; Uranium deposit; Sandstones; Zirconium},
   language = {eng},
   issn = {0169-1368},
   journal = {Ore geology reviews},
   title = {Multi-scale visualization of uranium-rich domains dispersed in U-Zr mineralization of sandstone-type (Břevniště, Czech Republic)},
   url = {https://www.sciencedirect.com/science/article/pii/S016913682100384X#!},
   volume = {138},
   year = {2021}
}

TY  - JOUR
ID  - 1820741
AU  - Mikysek, Petr - Zikmund, Tomáš - Dosbaba, Marek - Břínek, Adam - Slobodník, Marek - Adamovič, Jiří - Mészárosová, Noemi - Trojek, Tomáš - Kaiser, Jozef
PY  - 2021
TI  - Multi-scale visualization of uranium-rich domains dispersed in U-Zr mineralization of sandstone-type (Břevniště, Czech Republic)
JF  - Ore geology reviews
VL  - 138
IS  - November
SP  - 104358
EP  - 104358
PB  - Elsevier B.V.
SN  - 01691368
KW  - Computed tomography
KW  - Automated mineralogy
KW  - Uranium deposit
KW  - Sandstones
KW  - Zirconium
UR  - https://www.sciencedirect.com/science/article/pii/S016913682100384X#!
N2  - Multi-level visualization of U-Zr mineralization in sandstones is discussed, aiming at the identification of mineral phases, imaging of their distribution using 2D and 3D projections, and quantification of the presence of U-rich domains. For this purpose, uranium-bearing sediments with anomalous concentrations of Zr, Nb ± Fe, Sr were studied (Břevniště deposit, Czech Republic). The applied multi-instrumental approach included selection of the most suitable areas in core samples (highest U and Zr concentrations) using X-ray fluorescence analysis (XRF). The presence of numerous detrital and authigenic accessories, hardly discernible using optical methods, was confirmed with the use of automated mineralogical analysis (TIMA). Hydrozircon and metacolloidal mixed phases were shown to be the carriers of uranium. Their close relationship to sulfides, Fe oxyhydroxides and clay minerals was documented using phase distribution maps. X-ray micro-computed tomography (μCT) was used for the visualization of internal structures of uranium-bearing sandstones. Based on a series of thresholding of μCT data, segmentation of selected samples was performed with subsequent visualization of selected mineral phases. The combination of TIMA and μCT analysis allowed for an effective discrimination of U-rich areas and quantification of their volume. This approach provides new possibilities in imaging elementary complex disseminated uranium mineralizations.
ER  -

MIKYSEK, Petr; Tomáš ZIKMUND; Marek DOSBABA; Adam BŘÍNEK; Marek SLOBODNÍK; Jiří ADAMOVIČ; Noemi MÉSZÁROSOVÁ; Tomáš TROJEK a Jozef KAISER. Multi-scale visualization of uranium-rich domains dispersed in U-Zr mineralization of sandstone-type (Břevniště, Czech Republic). \textit{Ore geology reviews}. Amsterdam: Elsevier B.V., 2021, roč.~138, November, s.~104358-104373. ISSN~0169-1368. Dostupné z: https://doi.org/10.1016/j.oregeorev.2021.104358.

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