L'indice à sulfoantimoniures de plomb des Cougnasses (commune d'Orpierre, Hautes-Alpes). Partie I : minéralogie du minerai
1975; Wentworth Press; Volume: 98; Issue: 5 Linguagem: Inglês
10.3406/bulmi.1975.7008
ISSN2772-9788
AutoresYves Moëlo, Paul Picot, Roland Pierrot,
Tópico(s)Geochemistry and Elemental Analysis
ResumoOccurrence of Cougnasses (near Orpierre, Hautes-Alpes) presents a complex mineralization where lead sulphantimonides are predominant : boulangerite, geocronite, semseyite, and secondary plagionite, zinkenite, bournonite and andorite-ramdohrite. A detailed sampling has permitted estimation of abondance and frequency of sulfides. Geocronite abondance is particularly remarkable. This species present a strong variation of Sb/As ratio and in polished section appear twinned according to various facies, the more common of which are very distinct of standard facies.
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