Skip to Main Content
Book Chapter

Gold-Silver Mineralization in the El Salvador Region, Northern Chile

By
H. Colley
H. Colley
Department of Geology, Oxford Polytechnic, Oxford OX3 OBP, United Kingdom
Search for other works by this author on:
P. J. Treloar
P. J. Treloar
Department of Geology, Imperial College, London SW7 2BP, United Kingdom
Search for other works by this author on:
F. Diaz
F. Diaz
Servicio Nacional de Geologia y Mineria, Avenada Santa Maria, 0104, Santiago, Chile
Search for other works by this author on:
Published:
January 01, 1989

Abstract

During the late Mesozoic and the Cenozoic widespread hydrothermal activity, much of it accompanied by gold-silver mineralization, has characterized the evolution of the El Salvador region. Gold and silver, usually in the range 3 to 10 g/metric ton for both metals, have been recorded from a wide variety of deposit types: (1) massive quartz veins, (2) specularite-dominated veins and breccias, (3) porphyry-style gold-silver stockworks, (4) quartz-tourmaline-sulfide breccia pipes, (5) porphyry copper bodies, (6) carbonate-hosted and volcanic-hosted epithermal deposits. The gold and silver are usually by-product metals and current exploitation is centered on supergene-enriched ore from the oxidized zone. A strong structural control on ore deposition is apparent in virtually all deposits and there are indications of oogenetic epithermal-porphyry hydrothermal systems based on fracture systems. In addition, structural controls of regional dimensions are proposed with intense igneous and hydrothermal activity being channeled along crustal-scale fissures.

You do not currently have access to this article.

Figures & Tables

Contents

Economic Geology Monograph Series

The Geology of Gold Deposits: The Perspective in 1988

Reid R. Keays
Reid R. Keays
Search for other works by this author on:
W. R. H. Ramsay
W. R. H. Ramsay
Search for other works by this author on:
David I. Groves
David I. Groves
Search for other works by this author on:
Society of Economic Geologists
ISBN electronic:
9781629490014
Publication date:
January 01, 1989

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal