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Nature 436, 789-790 (11 August 2005) | doi:10.1038/436789b; Published online 10 August 2005
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Paleobiologist / Biogeochemist
- University of Cincinnati
- Cincinnati, Ohio, USA
Endowed Professorship in Neuroscience
- University of Tennessee Health Science Center
- Memphis, Tennessee, USA
Mantle geochemistry: Big lessons from little droplets
Claude Herzberg1
Abstract
How does Hawaii look deep below the surface? Like viewing an object at a different magnification, studies of minuscule inclusions in volcanic rocks on the surface provide a fresh perspective on the question.
Mantle plumes are thought to be roughly elongate cylinders of rock that buoyantly rise up from deep within the Earth, manifesting themselves at the surface in features such as the Hawaiian islands and Iceland. Much attention has centred on Hawaii, because it is constructed from Earth's largest volcanoes distributed along two geochemically distinct alignments, and there is considerable debate about what these distinctions reveal about the underlying plume that feeds them.
- Claude Herzberg is in the Department of Geological Sciences, Rutgers, State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, USA.
Email: herzberg@rci.rutgers.edu
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