Open AccessОсобенности структур распада твердого раствора Cu-Ag cульфидов на месторождении Теплое (Северо-Восток России)
Author(s) -
I. A. Bryzgalov,
Н. Е. Савва,
О.В. Кононов,
А. В. Волков
Publication year - 2021
Publication title -
vestnik severo-vostočnogo naučnogo centra dalʹnevostočnogo otdeleniâ ran
Language(s) - English
Resource type - Journals
ISSN - 1814-0998
DOI - 10.34078/1814-0998-2021-2-31-40
Subject(s) - copper , hydrothermal circulation , mineralization (soil science) , metastability , decomposition , copper sulfide , crystallization , impurity , redistribution (election) , sulfide , crystallography , mineralogy , inorganic chemistry , chemistry , materials science , geology , metallurgy , organic chemistry , politics , political science , nitrogen , law , seismology
The authors consider features of the triple structure of Ag-Cu-S solid solution decomposition resulted from redistribution of matter in the ores of the epithermal Au-Ag Teploye deposit due to the spatial combination of volcanogenic Au-Ag mineralization, with relatively later copper porphyry. The discovery of the mckinstryite, copper-silver sulfide, permits to consider the occurrence of copper in acanthite a non-structural impurity element, while the term "cupreous acanthite" appears insufficiently substantiated. It has been suggested that the mckinstryite-jalpaite (+ acanthite) structure was formed not by the decomposition of a solid solution or the crystallization of a normal hydrothermal solution, but but in the course of solidification of the sluggish, viscous, colloid-like substance in a metastable environment under low-temperature conditions, and was accompanied by structural rearrangement of its mineral constituents.