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orthogneiss

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Journal Article

The Patterson Lake corridor of Saskatchewan, Canada: defining crystalline rocks in a deep-seated structure that hosts a giant, high-grade Proterozoic unconformity uranium system

Colin D. Card
Published: 15 January 2021
Geochemistry: Exploration, Environment, Analysis (2021) 21 (1): geochem2020-007.
DOI: https://doi.org/10.1144/geochem2020-007
.... Orthogneisses along with voluminous pegmatites are the hosts of the uranium mineralization. These rocks, however, underwent significant open-system metasomatic–hydrothermal modification. Principal amongst these alterations is early and pervasive quartz flooding that resulted in the development of widespread...
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Carbonate-bearing phosphohedyphane–“Hydroxylphosphohedyphane” and cerussite: Supergene products of galena alteration in Permian aplite (Western Carpathians, Slovakia)

Martin Ondrejka, Peter Bačík, Marián Putiš, Pavel Uher, Tomáš Mikuš, Jarmila Luptáková, Štefan Ferenc, Alexander Smirnov
Published: 19 June 2020
The Canadian Mineralogist (2020) 58 (3): 347–365.
DOI: https://doi.org/10.3749/canmin.1900082
... orthogneisses belonging to the pre-Alpine basement of the Veĺký Zelený Potok Valley in the Veporic Unit, Western Carpathians, Central Slovakia. The secondary Ca-Pb phosphates include phosphohedyphane Ca 2 Pb 3 (PO 4 ) 3 Cl and (OH)-dominant “hydroxylphosphohedyphane” Ca 2 Pb 3 (PO 4 ) 3 OH. Detailed EPMA...
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