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  • File:Sem-xrd-cl-and-xf-methods fig6.png
    ...X-ray fluoroscopy slab photograph and (b) plane light slab photograph of a Pennsylvanian sandstone from Oklahoma.
    (1,034 × 1,598 (1.16 MB)) - 22:29, 14 January 2014
  • File:M91Ch11FG70.JPG
    ...one as picked out by varying seismic amplitudes on a horizon display, late Pennsylvanian to Early Permian, Baylor County, Texas (from Burnett, 1996). From Shepherd,
    (600 × 353 (134 KB)) - 15:46, 27 April 2015