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Latest Petrological Database of the Ocean Floor Stories

2014-01-07 08:35:08

SAN FRANCISCO, January 7, 2014 /PRNewswire/ -- Elsevier [http://www.elsevier.com/wps/find/homepage.cws_home ], a world-leading provider of scientific, technical and medical

2005-08-24 17:23:58

Researchers at Columbia University's Lamont-Doherty Earth Observatory recently resolved a long-standing contradiction about the workings of the deep Earth. For years, many geochemists have argued that parts of the deep mantle remain unchanged since the formation of the Earth, whereas many geophysicists and geodynamicists have held that the entire mantle has been convecting (moving and mixing) over geological time.


Word of the Day
postliminy
  • In Roman antiquity, the return of a person who had been banished, or taken prisoner by an enemy, to his old condition and former privileges.
  • In international law, that right by virtue of which persons and things taken by an enemy in war are restored to their former status when coming again under the power of the nation to which they belonged.
The word 'postliminy' comes from a Latin word meaning 'threshold'.