Skip to Main Content
Book Chapter

Regional Variation of Silver and Gold Ratios in Vein Ores of Arizona

By
Spencer R. Titley
Spencer R. Titley
Department of Geosciences, University of Arizona, Tucson, Arizona 85721
Search for other works by this author on:
Published:
January 01, 1989

Abstract

An analysis of silver and gold production from Arizona vein-related mining districts reveals order-of-magnitude contrasts in ratios of precious metal values that correspond in a striking way to two geologically distinct blocks of crust. The contrasts in metal content transgress epochs of mineralization and other traditional controls of mineralization as well as inferred processes and environments of metal deposition. Comparison of produced silver to gold ratios in districts with those ratios representative of lithologies of contiguous or subjacent Proterozoic crust reveals that the metal ratios mimic those values in the Precambrian rocks. Deep plumbing systems in vein districts sample a significant thickness of Proterozoic rocks, and the mineralizing process appears to have resulted in metals inherited in deposits in the same proportions in which they occur within the crustal setting of ore formation.

You do not currently have access to this article.
Don't already have an account? Register

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

A comprehensive resource of eBooks for researchers in the Earth Sciences

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal