Thursday, June 14, 2012

Eclogite from Norway



Click on image to enlarge.         Specimen: Oliver Pluemper; Photo: Dan Snyder

Eclogite hand specimen from Norway. Thanks to Oliver Pluemper, University of Oslo, for the specimen. Optical scan. Specimen width 9.42 cm, height 7.3 cm.

Click on image to enlarge.     Specimen: Oliver Pluemper     Photo: Dan Snyder
Garnet (large, dark forms) and pyroxene (small and very  small yellow  and brown forms) in eclogite specimen shown in hand sample image above. This specimen, from the western Gneiss belt of Norway, has undergone significant deviatoric stress, which the garnet has resisted more effectively than has the pyroxene. XPL. Imaged area 2.7 mm by 4 mm.