Palladium and platinum seleno-tellurides and their associations

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Palladium and platinum seleno-tellurides and their associations

Popis výsledku v původním jazyce

Palladium and platinum tellurides and selenides were experimentally investigated at 400 degrees C. We have synthesized the binary and ternary phases in the systems Pd/Pt-Se-Te and evaluated them by means of Xray powder-diffraction analysis, reflected light and electron microscopy. The experiments were performed using the evacuated silica-glass tube method. The phase relations were assessed in the system Pd-Se-Te at 400 degrees C. Miessite (Pd11Te2Se2) forms stable associations with Pd13Te3 and keithconnite (Pd20Te7), keithconnite and palladseite (Pd17Se15). Miessite also coexists with Pd4Se, Pd7Se2, Pd34Se11 and Pd7Se4. Telluropalladinite coexists with Pd3Te2 and palladseite. Palladseite coexists with Pd3Te2 and kotulskite ss. Preliminarily experimental results in the Pt-Se-Te system have shown the complete solid solution sudovikovite (PtSe2) - moncheite (PtTe2). A new ternary phase PtSeTe was observed in the system and is being further investigated. Assessed stable associations should be sought in assemblages with other PGM and known Pd/Pt selenides and tellurides, likely in magmatic Cu-Ni-PGE mineral deposits, associated with mafic and ultramafic igneous rocks, but also at low temperatures formations like selenide vein-type mineralization.

Název v anglickém jazyce

Palladium and platinum seleno-tellurides and their associations

Popis výsledku anglicky

Palladium and platinum tellurides and selenides were experimentally investigated at 400 degrees C. We have synthesized the binary and ternary phases in the systems Pd/Pt-Se-Te and evaluated them by means of Xray powder-diffraction analysis, reflected light and electron microscopy. The experiments were performed using the evacuated silica-glass tube method. The phase relations were assessed in the system Pd-Se-Te at 400 degrees C. Miessite (Pd11Te2Se2) forms stable associations with Pd13Te3 and keithconnite (Pd20Te7), keithconnite and palladseite (Pd17Se15). Miessite also coexists with Pd4Se, Pd7Se2, Pd34Se11 and Pd7Se4. Telluropalladinite coexists with Pd3Te2 and palladseite. Palladseite coexists with Pd3Te2 and kotulskite ss. Preliminarily experimental results in the Pt-Se-Te system have shown the complete solid solution sudovikovite (PtSe2) - moncheite (PtTe2). A new ternary phase PtSeTe was observed in the system and is being further investigated. Assessed stable associations should be sought in assemblages with other PGM and known Pd/Pt selenides and tellurides, likely in magmatic Cu-Ni-PGE mineral deposits, associated with mafic and ultramafic igneous rocks, but also at low temperatures formations like selenide vein-type mineralization.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10505 - Geology

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Life with ore deposits on Earth, Proceedings of the 15th SGA biennial meeting - volume 2

ISBN

978-0-85261-963-6

ISSN

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e-ISSN

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Počet stran výsledku

3

Strana od-do

591-593

Název nakladatele

Society for Geology Applied to Mineral Deposits

Místo vydání

GENEVA 4

Místo konání akce

University of Glasgow

Datum konání akce

27. 8. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000503111600153