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Henryk Kania and Mariola Saternus
This article presents the history of zinc, its production and demand. The quantity of zinc production, both primary zinc from ores and concentrates, and secondary zinc from scrap and zinc-rich waste, was discussed. A comprehensive economic analysis cover...
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Trevor J. Falloon, Kaj Hoernle, Bruce F. Schaefer, Ilya N. Bindeman, Stanley R. Hart, Dieter Garbe-Schonberg and Robert A. Duncan
Lava samples from the Christmas Island Seamount Province (CHRISP) record an extreme range in enriched mantle (EM) type Sr-Nd-Pb-Hf isotope signatures. Here we report osmium isotope data obtained on four samples from the youngest, Pliocene petit-spot phas...
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Kent C. Condie
Zircon age peaks at 2100?1650 and 1200?1000 Ma correlate with craton collisions in the growth of supercontinents Nuna and Rodinia, respectively, with a time interval between collisions mostly <50 Myr (range 0?250 Myr). Collisional orogens are two types: ...
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David A. Foster and Ben D. Goscombe
Convergent plate margins where large turbidite fans with slivers of oceanic basement are accreted to continents represent important sites of continental crustal growth and recycling. Crust accreted in these settings is dominated by an upper layer of recy...
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Christopher Halls,Albrecht Schneider
Pág. 41 - 56
Resumen. Los depositos de estano del mundo estan ubicados en diferentes ambientes geotectonicos y asociados a series de Rocas igneas con caracteristicas quimicas y petrologicas especificas. En la Provincia Estannifera Boliviana, la mineralizacion Esta as...
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