• Special Sanding Films and Sandpapers for Surfacing Narrow-Ring Increment Cores

      Yamaguchi, David K.; Brunstein, F. Craig; Mountain Research Station and Institute of Arctic and Alpine Research, University of Colorado, Boulder, Colorado; U. S. Geological Survey, Denver, Colorado (Tree-Ring Society, 1991)
      Special sanding films (400 grit to 23 micron) and fine sandpapers (1200-1500 grit) can be used to surface increment cores containing narrow rings (e.g., >50 rings per cm) so that rings are clearly visible for microscopy and photography.