PDS_VERSION_ID        = PDS3
RECORD_TYPE           = STREAM

OBJECT                = TEXT
  PUBLICATION_DATE    = 2009-11-15
  NOTE                = "Sample description"
END_OBJECT            = TEXT
END

High-level Description: Second layer of reference image 3679. The bottom of
image 3678 includes the 3rd layer in image 3679.  Composed primarily of dark
brown sub-angular sub-vitreous clasts in a fine, light-colored,
clast-supported matrix. Clast sizes fine downwards and vary throughout the
layer from 1.7 to 4.2 mm in diameter in the upper portion to 1-3.8 mm in the
lower portion. Clasts in the lower part of the photo are much larger, with an
average diameter of 6 mm (Largest 6.2 mm and smallest 5.9 mm). Some are
vesicular and frothy.

Texture
  Grain morphology and appearance: Dark brown sub-angular sub-vitreous clasts
in a fine, light-colored, clast-supported matrix. Larger grains in the lower
portion of the layer are vesicular and frothy.
  Grain size and sorting: Clast sizes fine downwards and vary throughout the
layer from 1.7 to 4.2 mm in diameter in the upper portion to 1-3.8 mm in the
lower portion. Clasts in the lower part of the photo are much larger, with an
average diameter of 6mm (Largest 6.2mm and smallest 5.9mm). Well-sorted.
  Grain fabric:  Random orientation.

Sediment structure:  Parallel lamination.

Color:  Dark brown grains in a light-toned matrix.