INVESTIGADORES
BJERG Ernesto Alfredo
congresos y reuniones científicas
Título:
Argentopentlandita de mina Salamanca: una nueva especie mineral en Argentina.
Autor/es:
BJERG, E A; BRODTKORB, M
Lugar:
Buenos Aires
Reunión:
Congreso; Mineralogía y Metalogenia 2002; 2002
Institución organizadora:
Asociación Mineralógica Argentina
Resumen:
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This
is the first roported occurrence of the mineral argentopentlandite [Ag(Fe, Ni)8S9]
in Argentina. It occurs as exsolutions intcergrown with mackinawite in a chalcopyrite
matrix, in the sulfide
mioeralization located in a fault zone in Salamanca mine, province of Mendoza.
Pentlandite and cobalt pentlandite are also present but associated to pyrrhotite.
Its association to chalcopyrite and mackinawite. the last one carrying up to 7.5 wt % Ni and 0.7 wt% Co, indicates
that the most plausible genesis for the argentopentlandite is by exsolution
from a high temperature ISS which carried Ag and Ni.
