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Detailed Reference Information |
Hofmann, A.W. (1997). Mantle geochemistry: The message from oceanic volcanism. Nature 385(6613): 219-229. |
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Basaltic volcanism 'samples' the Earth's mantle to great depths, because solid-state convection transports deep material into the (shallow) melting region. The isotopic and trace-element chemistry of these basalts shows that the mantle contains several isotopically and chemically distinct components, which reflect its global evolution. This evolution is characterized by upper-mantle depletion of many trace elements, possible replenishment from the deeper, less depleted mantle, and the recycling of oceanic crust and lithosphere, but of only small amounts of continental material. |
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BACKGROUND DATA FILES |
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Abstract |
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Table 1 |
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Evaluation of Geochemical Mantle Models |
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Keywords
os isotope systematics, south-pacific ocean, island basalts, continental-crust, trace-element, chemical-structure, earths mantle, evolution, plumes, pb |
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Publisher
Nature Publishing Group 345 Park Avenue South, 10th floor New York, NY 10010-1707 USA 1-212-726-9200 1-212-696-9006 press@nature.com |
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