Metallic sulphide

a binary compound of sulphur with a metal.

See also: Sulphide

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Part of the deep low resistivity response in this area could represent the core of a system of mineralization with the higher IP responses flanking and overlying it, representing relative increases in pyrite content with respect to other metallic sulphide minerals.
Such spreading ridges are volcanic and produce metallic sulphide minerals through so-called "black smokers".
A total of 175 degraded mining areas (including 114 metallic sulphide mines) were identified throughout Portugal.