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Basaltic Igneous Rock

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Created 02/09/2010

Macro photograph captured in the Visualization Laboratory of basaltic igneous rock, recovered from the oceanic crust at Hess Deep, 110Km west of the Galapagos Islands. Part of a study by Michael A. Stewart of the Geology Department at the the University of Illinois at Urbana-Champaign, in which phase proportions were estimated by optical microscopy of thin sectioned rock to study the mineralogy and identify the proportions of equilibrium phases. Photo credit: Joel W. Russ.


  • Joel W. Russ , Department of Physics
  • Michael A. Stewart , Department of Geology
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