Gossans and Leached Cappings: Field Assessment

Roger Taylor

Σεπ 2011 · Springer Science & Business Media

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This text concentrates upon field observations concerning leached cappings and gossans, occurring as oxidised surface expressions of underlying ore zones.

Although the advent of modern multielement geochemical sampling and easier mechanical excavation assist considerably in subsurface interpretation, there are still many occasions where the first observation and recognition are made by the lone field geologist. New exposures continue to be found in remote and often difficult terrains, where “on the spot” skills are of prime importance.

In general terms the text has been arranged from the broad scale to the specific, and it should be realised that all scales provide valuable input for final interpretation. The topics covered include:

• Theoretical perspectives

• Initial recognition

• General field observations

• Detailed field observations (secondary minerals, boxworks)

• Porphyry copper leached cappings

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Author Roger Taylor was born in Heywood, Lancashire, England in 1938. He has written twelve fantasy novels all set in the same universe, but there is only minor interaction between the books. The first four books are collectively known as the Chronicles of Hawklan. He is also a civil and structural engineer and enjoys teaching and practicing aikido and shooting pistols, rifles, and shotguns. He currently lives in Wirral, Merseyside, England.