Gossan - Wikipedia
Gossan (eiserner hut or eisenhut) is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein. In the classic gossan or iron cap all that remains is iron oxides and quartz, often in the form of boxworks (which are
Gossan | Oxide Minerals, Iron Ore & Sulfide Minerals | Britannica
gossan, rust-coloured oxide and hydroxide minerals of iron and manganese that cap an ore deposit. Gossans form by the oxidation of the sulfide minerals in an ore deposit and they thus may be used as clues to the existence of subsurface ore deposits, especially if …
Gossan or the iron cap - supergene sulphide ore enrichment
Nov 4, 2013 · Gossan is a term from mineral economics. The gossan may also be called iron cap. This is so because it denotes a concretion of iron hydroxides that has formed on top of sulphide mineral vein, where it reaches the surface.
Gossan - SpringerLink
Gossans are the normal end products of oxidation and leaching of iron-bearing sulfide deposits exposed to the surface environment by erosion. The principal oxidizing agent is atmospheric oxygen and the leaching is accomplished by descending ground waters of meteoric origin.
Gossan - an overview | ScienceDirect Topics
Gossans are the signposts that point to what lies beneath the surface. Gossans are exceedingly ferruginous rock, which is the product of oxidation by weathering and leaching of sulfide mineralization.
Gossan - Mining Fundamentals
Gossan refers to the rust-colored capping or staining of a mineral deposit, which is mostly formed due to the oxidation or alteration of iron sulfides. Gossan generally appears as a red stain against the background rock and soil, due to the presence of a large quantity of oxidized iron.
Important of Gossans in Mineral Exploration: A Case Study in ...
Jun 15, 2018 · Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein. In the 19<sup>th</sup> and 20<sup>th</sup> centuries gossans were important guides to buried ore deposits used by prospectors in their quest for metal ores.
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