1. Home page
  2. Search

First finding of merenskyite (Pd,Pt)Te-2 in porphyry Cu-Mo ores in Russia

This item is provided by the institution :
National Technical University of Athens   

Repository :
Digital Library of National Technical University of Athens | Dspace@NTUA   

see the original item page
in the repository's web site and access all digital files if the item*



First finding of merenskyite (Pd,Pt)Te-2 in porphyry Cu-Mo ores in Russia (EN)
Eliopoulos, DG (EN)
Sotnikov, VI (EN)
Economou-Ehopoulos, A (EN)
Berzina, A (EN)
journalArticle (EN)
2014-03-01T01:56:29Z
2007 (EN)
Contents of Pt and Pd were determined in weakly mineralized rocks, ores, and flotation concentrates of the Aksug porphyry Cu-Mo deposit, northeastern Tuva. In all studied samples they are above the detection limits: Pt = 17-96 ppb and Pd = 9-924 ppb. These elements are unevenly distributed throughout the rocks and ores, with Pd/Pt varying from 0.5 to 37. Study of Pd-rich ores (up to 924 ppb, Pd/Pt = 37) on a JEOL JSM 5600 scanning electron microscope revealed finest (2-5 mu m) merenskyite inclusions (25.20% Pd, 1.21% Pt, 72.31% Te) in chalcopyrite. The calculated crystallochernical formula of merenskyite from ores of the Aksug deposit is (Pd(0.862)Pt(0.023)Cu(0.026)Feo(0.025))Te-2.064.The merenskyite is associated with electrum (79.92% Au, 18.96% Ag), monazite, cobaltite, tennantite, and Sr-containing barite (4.6-18.0% Sr). Palladium mineralization occurs in massive chatcopyrite veinlets in zones of intensely propylitized rocks. The Devonian Aksug ore-bearing porphyry complex developed in the field of Early-Middle Cambrian intrusions of gabbro-diorite-plagiogranites associated with basalt-andesite effusions of island-arc complex. This might have led to high PGE contents in the Aksug rocks. The deposit formation proceeded with the participation of ore-bearing Cl-enriched fluids favoring the concentration and transport of PGE in porphyry copper systems. (C) 2007, IGM, Siberian Branch of the RAS. Published by Elsevier B.V. All rights reserved. (EN)
Geosciences, Multidisciplinary (EN)
PALLADIUM (EN)
DEPOSITS (EN)
MINERALS (EN)
MINERALIZATION (EN)
PLATINUM (EN)
tuva (EN)
merenskyite (EN)
aksug porphyry cu-mo deposit (EN)
MONGOLIA (EN)
PGE (EN)
Russia (EN)
RUSSIAN GEOLOGY AND GEOPHYSICS (EN)
English
ELSEVIER SCIENCE BV (EN)
National Technical University of Athens
Digital Library of National Technical University of Athens | Dspace@NTUA
Κεντρική Βιβλιοθήκη Ε.Μ.Π.
Ιδρυματικό Αποθετήριο
Δημοσιεύσεις μελών Δ.Ε.Π. σε περιοδικά



*Institutions are responsible for keeping their URLs functional (digital file, item page in repository site)