Bolivia

Imaggeo on Mondays: Journey to Bolivia’s Laguna Negra

Olivia Trani November 25, 2019

Laguna Negra, Salar de Uyuni, Bolivia. Credit: Katleen Wils (distributed via imaggeo.egu.eu).

This week’s featured photo showcases one of the most geologically diverse landscapes of South America: the Altiplano, the high plateau of the Andes. This plateau covers roughly 200,000 square kilometres in central South America, stretching from southern Peru to northern Argentina. The high-elevation plain sits between the eastern and western chains of the Central Andes and is home to a myriad of n ...[Read More]

GeoSciences Column: Forests in flux – log-jams in the Amazon

Robert Emberson October 25, 2017

The impact of log jams on river geomorphology is varied. Unravelling the untouched . Credit: Amajida Roslim (distributed via imaggeo.egu.eu).

Collapsing dams are a staple of disaster films, but the form that these take in natural systems is also surprisingly varied. Streams and rivers can be blocked by a range of rapid and gradual inputs. One of the lesser-known causes of stream blockage is through the accumulation of large woody debris – tree trunks and large branches – to form a log jam. The impact of these jams on river geomorphology ...[Read More]

Imaggeo on Mondays: The Valley of the Souls

Laura Roberts-Artal August 25, 2014

Simon Gascoin captured this image of the badlands of the Palca canyon. The Palca canyon is located near the city of La Paz, Bolivia. Like much of the geology in the vicinity of La Paz, the canyon comprises mainly unconsolidated glacial formations, which are highly susceptible to wind and water erosion. The imposing spires, which can reach up to 200m in height, are fluvioglacial deposits that resul ...[Read More]