Ore Elements in Arc Lavas

Ore Elements in Arc Lavas

by R. L. Stanton
ISBN-10:
0198540507
ISBN-13:
9780198540502
Pub. Date:
09/01/1994
Publisher:
Oxford University Press, USA

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Overview

Ore Elements in Arc Lavas

Most of the world's great volcanic massive suphide ore deposits, porphyry copper ores, and many of its richest gold veins occur in association with basalt-andesite-dactite-rhyolite laval suites that have erupted from ancient volcanic islands and their Precambrian equivalents. These volcanic arcs and their related aquatic-volcanic environments are now recognized as critical to an understanding of the evolution of the earth's crust and the origin of many important ore types. This book is concerned with the behavior of the 'ore elements'—copper, zinc, lead, cobalt, nickel, barium, and others—in young metamorphosed, volcanic arc lava suites, as these evolve from high-magnesium basalts to rhyolites. Using mostly the Pleistocene to recent lavas of the Solomon Islands younger volcanic suite, the author examines the patterns of abundance of these elements in rock constituents and describes the ways in which the metals may be enriched or impoverished in the residual melt as an arc lava series evolves from basalt to rhyolite. The book presents state-of-the-art information that will be indispensable to vulcanologists, geochemists, and mining geologists.

Product Details

ISBN-13: 9780198540502
Publisher: Oxford University Press, USA
Publication date: 09/01/1994
Series: Oxford Monographs on Geology and Geophysics Series , #29
Pages: 412
Product dimensions: 7.69(w) x 10.00(h) x 1.10(d)

Table of Contents

1. Introduction
2. Volcanic rocks and exhalative ores: the general nature of the ores and their environments
3. Historical: development of ideas on the origin of exhalative ores
4. Derivation of the exhalations
5. Petrology of the Solomon Islands Younger Volcanic Suite
6. Copper
7. Zinc
8. Lead
9. Barium
10. Strontium
11. Phosphorus
12. Calcium
13. Titanium
14. Vanadium
15. Chromium
16. Manganese
17. Iron
18. Cobalt
19. Nickel
20. Sundry elements
21. Abundance patterns in the crystallizing melt
22. The ore elements in volcanic exhalations
23. Petrogenesis 1: The lavas
24. Petrogenesis 2: Exhalative ores
Epilogue
Bibliography
Index

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