Geomorphology

Imaggeo on Mondays: Sunset and moonrise at Yosemite

Teamrat Ghezzehei June 24, 2019

Sunset and Moonrise at Yosemite Credit: Teamrat Ghezzehei (distributed via imaggeo.egu.eu)

This side view of Half Dome at Yosemite National Park (California, USA) was taken from Washburn Point, a less frequented overlook a few hundred meters away from the popular Glacier Point outlook. The sun just on the right side behind the camera, which gave the orange tint to the back side of Half Dome. At the same time a full moon was mere minutes from bursting in the background, which resulted in ...[Read More]

Imaggeo on Mondays: Foggy Bandon beach, Oregon

Frederik Tack June 17, 2019

Foggy Bandon beach, Oregon. Credit: Frederik Tack (distributed via imaggeo.egu.eu).

This picture was taken at Bandon beach, Oregon. Bandon is well-known for its memorable seascape of stacks of all shapes and sizes. These rock formations are known to geologists as ‘knockers’ and carry nicknames like ‘the Wizards hat’. They date from the Jurassic period – about 200 to 145 million years ago – and are what remains from the great mélange during tectonic subduction processe ...[Read More]

Back for the first time: measuring change at Narrabeen–Collaroy Beach

Eli Lazarus May 8, 2019

Narrabeen–Collaroy Beach in New South Wales, Australia, home to one of the longest-running shoreline-measurement programmes in the world! Credit: Eli Lazarus

Narrabeen–Collaroy Beach in New South Wales, Australia, just north of Sydney, is home to one of the longest-running shoreline-measurement programmes in the world. With colleagues at the University of New South Wales (UNSW) Sydney, Eli Lazarus, an associate professor in geomorphology at the University of Southampton, UK, has been analysing over 40 years of data from Narrabeen–Collaroy to better und ...[Read More]

Could beavers be responsible for long-debated deposits?

Sara Mynott May 3, 2019

The evidence: a beaver dam and surrounding swamp in Lithuania. Credit: Jūsų darbas via Wikimedia Commons

Following her presentation at the European Geosciences Union General Assembly in Vienna, I caught up with geomorphologist and environmental detective Annegret Larsen from the University of Lausanne, Switzerland, about beavers, baffling sediments and a case she’s been solving for the past seven years. Back in 2012 the German geomorphology community was seriously debating the source of buried black ...[Read More]