Podrobnosti záznamu

Název
    Poorly crystalline Pd-Hg-Au intermetallic compounds from Córrego Bom Sucesso, southern Serra do Espinhaço, Brazil
Další názvy
    Pd-Hg-Au intermetalické sloučeniny z Córrego Bom Sucesso, jižní Serra do Espinhaço, Brazílie.
Autor
    Cabral, Alexandre
    Haloda, Jakub
    Kwitko-Ribeiro, R.
    Laufek, František
    Lehmann, B.
    Tupinambá, M.
    Vlček, V.
    Vymazalová, Anna
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    European Journal of Mineralogy
Svazek/č.
    Roč. 21, č. 4
Strany
    6
Rok
    2009
Výraz tezauru
    auriferous PdHg, auriferous Pd3Hg2, electron-microprobe analysis, electron-backscattered diffraction, Córrego Bom Sucesso, Serro, Minas Gerais, Brazil
Klíčové slovo
    Bom
    Brazil
    Compounds
    Córrego
    Crystalline
    Do
    Espinhaço
    Intermetallic
    Pd-Hg-Au
    Poorly
    Serra
    Southern
    Sucesso
Abstrakt (anglicky)
   Potarite, ideally PdHg, is reported in the literature to have compositions varying from PdHg or Pd(Hg,Au) to Pd3Hg2. Such a Pd3Hg2 phase is unknown in the Pd-Hg binary system. For the first time, Pd-Hg grains recovered from the historical Bom Sucesso alluvium, regarded as the type locality of Pd, are shown to consist of arborescent and lamellar zones of two intermetallic compounds, compositionally close to empirical Pd(Hg,Au), i.e., auriferous potarite, and (Pd,Au)3Hg2. The Pd-Hg-Au grains have a rim of palladiferous Pt. Both the Pd-Hg-Au compounds and the palladiferous Pt rim did not diffract using the electron-backscattered diffraction (EBSD) and powder X-ray microdiffraction techniques, suggesting that they are poorly crystalline.
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (RIV)
Zdrojový formát
    R
Datum importu
    15. 10. 2014