Jack Dykinga / Star trails in sky over Alabama Hills, BLM eroded granite formation know as Mobius Arch. Eastern Sierra, California. May 2012.

Jack Dykinga / Eroded Aztec sandstone, dating back to the Jurassic, 160 million years ago, colourful banding with fins and dikes produced by erosion, Mojave Desert near Las Vegas, Nevada, USA

Jack Dykinga / Colorado River Delta, with watercourse sculpted patterns eroded into the salt / silt flats near the Sea of Cortez, La Reserva del Golfo, Baja, Mexico

Eric Baccega / Eroded rocks at summit of Gorge de la Jonte with Peyreleau village in the background. Tarn, Cause, Cavennes, France.

Eric Baccega / Eroded rocks at summit of Gorge de la Jonte, Tarn, Causse, Cevennes, France.

Jeff Wilson / Director, Chadden Hunter, standing on wind eroded rock talking on radio to base camp, Dry Valleys, Antarctica, December 2009. Taken on location for the BBC series, Frozen Planet.

Joe Cornish / 2020VISION / Eroded rock on summit of Cul Mor with Suilven mountain in the background, Assynt mountains, Highland, Scotland, UK, June 2011. Did you know? The mountains of north-west Scotland chart nearly 3 billion...

Jack Dykinga / Eroded formation known as the 'Tres Maries', in the Valle de la Luna. One million year old composition of gravel, clay, salt, gems and quartz, against The Milky Way and Southern Cross in the night sky...

Jack Dykinga / Eroded rock formation known as the 'Tres Maries', in the Valle de la Luna. One million year old composition of gravel, clay, salt, gems and quartz, against The Milky Way and Southern Cross in the nigh...

Bryan and Cherry Alexander / Dramatically eroded cliffs reflected in the waters of Hall Basin. Ellesmere Island, Nunavut, Canada.

Jouan & Rius / Wave rock, an eroded granite plateau, Hyden area, Western Australia. August 2009

Jouan & Rius / Wave rock, an eroded granite plateau, Hyden area, Western Australia. August 2009