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2012-02-28 11:52:53

The March GSA TODAY, the Geological Society of America´s open-access science and news magazine, is now online at http://www.geosociety.org/gsatoday/archive/22/3/. This month´s science article, by Todd LaMaskin of the University of North Carolina at Wilmington, presents uranium-lead dating analyses of detrital zircon grains in Paleozoic-Mesozoic basin sediments in the Cordillera of western North America. LaMaskin's analysis shows a systematic variation in age distribution within...


Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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