PDS_VERSION_ID        = PDS3
RECORD_TYPE           = STREAM

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

High-level Description:  Lithified ash float in layer 6, comprised of three
types of grains: Large, light-brown accretionary lapilli, smaller, round,
black to dark-brown, glassy clasts, and very fine grey to light-brown ash.
Lapilli are 1 mm in diameter and have gritty surfaces. Glass droplets are
spherical to tear-drop shaped and about 0.5 mm in diameter, and fine ash is
about 0.1 mm and irregularly-shaped. Most particles have generally smooth
surfaces with only minor amounts of fractured surfaces. There is some layering
visible at this scale, with a lapilli-rich layer (~1c m) sandwiched between
two lapilli-free layers. In the lapilli-rich layer, about 30% of the ash is
lapilli, 50% is glass, and 20% is fine ash, and in the other layers 20% is
glass and 80% is fine ash.

Texture
  Grain morphology and appearance: Three types of grains: Large, light-brown
gritty-textured accretionary lapilli, smaller, round, black to dark-brown,
glassy clasts, and very fine grey to light-brown ash. In the lapilli-rich
layer, about 30% of the ash is lapilli, 50% is glass, and 20% is fine ash, and
in the other layers 20% is glass and 80% is fine ash.
  Grain size and sorting:  Accretionary lapilli are 1 mm in diameter; glass
droplets are 0.5 mm across and ash is ~0.1 mm in diameter. Layers are
homogeneous in grain size. There is some layering visible at this scale, with
a lapilli-rich layer (~1c m) sandwiched between two lapilli-free layers, but
there is no other apparent sorting.
  Grain fabric:  None.

Sediment structure:  Parallel lamination.

Color:  Black, light-to dark-brown and grey grains.