Imaggeo on Mondays: Salted Moon

The eerie landscape depicted in our Imaggeo on Mondays image, is brought to you by Donatella Spano (University of Sassari, Italy). This picture was taken at Mammoth Hot Springs, one of the largest hot spring areas at Yellowstone National Park, Wyoming, United States on August 10, 2010. Mammoth Hot Springs is divided into two sections, the Lower Terrace and the Upper Terrace Loops. The photo below ...[Read More]

Imaggeo on Mondays: Turkey’s cotton castle

This week, Imaggeo on Mondays is brought to you by Josep Ubalde, who transports us to a wonderful site in western Turkey: a city of hot springs and ancient ruins dubbed cotton castle, after the voluminous white rocks that spread from the spring’s centre… Pamukkale is lies in Turkey’s inner Aegean region, within an active fault that favours the formation of hot springs. The spring’s hot water ...[Read More]

Imaggeo on Mondays: Travertine takeover

This week’s Imaggeo on Mondays is brought to you by Olivier Galland, who took this photo during an incredible outreach adventure in the Andes…  The image displays the spectacular Puente del Inca (The Inca Bridge) hot springs, in the Argentinian Andes of the Mendoza province, along the Vacas River, close to the foot of Cerro Aconcagua. When the mineral-rich, sulphurous waters reach the surface, the ...[Read More]

Imaggeo on Mondays: Mammoth structures, springs and snowmelt

Spring waters are rich in minerals, carrying with them dissolved components of the rocks they have travelled through. The water that discharges at Mammoth Hot Springs in Yellowstone National Park is highly alkaline (contains a lot of dissolved CO2) and rich in calcium, but as the water cools, the calcium precipitates to form the white limestone terraces you see here. This limestone is known as tra ...[Read More]