Stratigraphy, Sedimentology and Palaeontology

Imaggeo on Mondays: The Grand Canyon and celebrating Earth Science Week

Laura Roberts-Artal October 12, 2015

Grand Canyon . Credit: Credit: Paulina Cwik (distributed via imaggeo.egu.eu)

Today marks the start of Earth Science Week – a yearly international event which aims to help the public gain a better understanding and appreciation for the Earth Sciences. The event is promoted by the American Geosciences Institute and the Geological Society of London, amongst others, so be sure to head to their websites to find out more. Our Imaggeo on Monday’s image celebrates Earth Science We ...[Read More]

Geosciences Column: The Oldest Eurypterid

David Marshall September 1, 2015

Artists reconstruction of Pentecopterus decorahensis in the Ordovician seas of what is now Iowa, USA. Image by Patrick Lynch.

The name of a newly found fossil of sea scorpion draws inspiration from ancient Greece warships and is a unique example of exceptional preservation, shedding light on the rich life of this bygone sea critter, explains David Marshall of Palaeocast fame. To learn more about the importance of giving new fossils names and what Pentecopterus decorahensis (as the new fossil is formally called) teaches u ...[Read More]

Imaggeo on Mondays: Velociraptor in the Zagros Mountains

Laura Roberts-Artal August 17, 2015

How many times have you turned your head up to the sky and spotted familiar shapes in the clouds? Viewing structures from afar can reveal interesting, common and, sometimes, funny patterns. Satellite images are often used to map geological terrains. They offer a bird’s eye view of the planet and the opportunity to see broad scale structures, the scale of which would be impossible to grasp from the ...[Read More]

Imaggeo on Mondays: The place where water runs through rocks

Laura Roberts-Artal July 13, 2015

Waved rocks of Antelope slot canyon. Credit: Frederik Tack (distributed via imaggeo.egu.eu)

Antelope Canyon, located in Arizona, USA, was formed by erosion of the Navajo Sandstone, primarily due to flash flooding and secondarily due to other sub-aerial processes (think of physical weathering processes such as freeze-thaw weathering exfoliation and salt crystallisation). Rainwater runs into the extensive basin above the slot canyon sections, picking up speed and sand as it rushes into the ...[Read More]