Secondary uranyl arsenates-phosphates and Sb-Bi-rich minerals of the segnitite-philipsbornite series in the oxidation zone at the Prakovce-Zimná Voda REE-U-Au quartz vein mineralization, Western Carpathians, Slovakia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F23%3A10136230" target="_blank" >RIV/00023272:_____/23:10136230 - isvavai.cz</a>

Result on the web

<a href="https://www.cambridge.org/core/journals/mineralogical-magazine/article/secondary-uranyl-arsenatesphosphates-and-sbbirich-minerals-of-the-segnititephilipsbornite-series-in-the-oxidation-zone-at-the-prakovcezimna-voda-reeuau-quartzvein-mineralisation-western-carpathians-slovakia/8977B2409512DA26CBE280033F77118A" target="_blank" >https://www.cambridge.org/core/journals/mineralogical-magazine/article/secondary-uranyl-arsenatesphosphates-and-sbbirich-minerals-of-the-segnititephilipsbornite-series-in-the-oxidation-zone-at-the-prakovcezimna-voda-reeuau-quartzvein-mineralisation-western-carpathians-slovakia/8977B2409512DA26CBE280033F77118A</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1180/mgm.2023.75" target="_blank" >10.1180/mgm.2023.75</a>

Result language

angličtina

Original language name

Secondary uranyl arsenates-phosphates and Sb-Bi-rich minerals of the segnitite-philipsbornite series in the oxidation zone at the Prakovce-Zimná Voda REE-U-Au quartz vein mineralization, Western Carpathians, Slovakia

Original language description

In this work, we studied the assemblages of supergene minerals of the hydrothermal REE-U quartz vein mineralization at the Prakovce, Zimná Voda site. Chemically heterogeneous uranyl arsenates and minor phosphates of the autunite group (nováčekite, kahlerite, threadgoldite, autunite, arsenuranospathite and chistyakovaite) together with scorodite and Sb-Bi-rich philipsbornite-segnitite series formed by oxidising fluids during decomposition and leaching of primary hypogene uraninite, brannerite and base-metal sulfides and sulfosalts. Progressive change of pH from acidic to near-neutral due to the gradual consumption of sulfides resulted in formation of late phosphuranylite, pharmacosiderite, and arseniosiderite. Goethite and other Fe oxides represent the latest hydrous ferric mineral phases and were formed after the most of As was already fixed in Fe arsenates. Antimony and Bi were taken up exceptionally into philipsbornite-segnitite only and suggest unusual conditions during their uptake. X-ray absorption spectroscopy indicates that Sb in the philipsbornite-segnitite is fully oxidized (0.1-0.4 apfu Sb5+, octahedral coordination on G site). Pentavalent Sb together with a presence of ferric oxides and arsenates and uranyl minerals suggest oxidative conditions during weathering. This study also indicates that hydrous ferric arsenates are dominant and stable secondary minerals in a supergene environment in the quartz vein rich in Fe and As accompanied by elevated concentrations of U, Pb, Sb, Bi, S, P, Ca and Ba under oxidizing conditions.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10504 - Mineralogy

Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Mineralogical Magazine

ISSN

0026-461X

e-ISSN

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Volume of the periodical

87

Issue of the periodical within the volume

6

Country of publishing house

GB - UNITED KINGDOM

Number of pages

17

Pages from-to

849-865

UT code for WoS article

001127800900001

EID of the result in the Scopus database

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