Kelso Dunes and Pisgah Cinder Cone


These are pictures from an October 21, 2012 field trip to Kelso Dunes and Pisgah Cinder cone which Karl Mitchell arranged.

Click on any image for a full size version (typically 8MB in size).

Group setting off to the large dune in the background.
The group setting off to the large dune in the background.

A person taking a picture of mangetic sand grains

Magnetic sand grains standing on the end of a magnetized screw driver
Magnetite sand grains

Picture of Karl Mitchell
Karl Mitchell

Patterns in sand from blowing grass
"Sand Angels" from the blowing grass

Dark magnetite grains concentrated on sand ripple crests
and dark ripple crests where the magnetite grains are concentrated

Image of sand dune showing magnetite concentration along crest

Image of sand dune showing magnetite concentration along crest
The magnetite can be concentrated on larger scales too.

People walking up crest of sand dune

People walking up crest of sand dune
Sand avalanches caused by walking up the crest of the dune

Small sand avalanches caused by walking up dune crest
with a foot for scale.


The views from the top

Panorama from top of sand dune

Panorama from top of sand dune

Panorama from top of sand dune

Panorama from top of sand dune

Panorama from top of sand dune

Panorama from top of sand dune

Panorama from top of sand dune

Panorama from top of sand dune


Experiments with dry ice -- buried and sliding

Dry ice buried in sand

Releasing block of dry ice on sand dune

Dry ice block sliding down sand dune

Dry ice block sliding down sand dune

Dry ice block sliding down sand dune

Dry ice block sliding down sand dune

Dry ice block sliding down sand dune

Dry ice block sliding down sand dune

Dry ice block sliding down sand dune

Pisgah Cinder Cone

People standing on old lava surface

Crack pattern in lava surface

Back to Bob Howell's (Geology Dept.) home page.