MAKE A MEME View Large Image Treesmed.gif This 84-million-year-old air bubble lies trapped in amber fossilized tree sap Using a quadrupole mass spectrometer scientists can learn what the atmosphere was like when the dinosaurs roamed the earth http //minerals cr usgs ...
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Keywords: Treesmed.gif This 84-million-year-old air bubble lies trapped in amber fossilized tree sap Using a quadrupole mass spectrometer scientists can learn what the atmosphere was like when the dinosaurs roamed the earth http //minerals cr usgs gov/gips/na/treeslrg gif USGS/USGov Free for all use PD-USGov Amber Bubbles
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