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Ore Elements in Arc Lavas (Hardcover)
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Ore Elements in Arc Lavas (Hardcover)
Series: Oxford Monographs on Geology and Geophysics, 29
Expected to ship within 12 - 17 working days
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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.
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