Chloritoid is a metamorphic mineral commonly found inside phyllite rocks – which is shale (a type of mudstone containing clays, silts and muds) that has been metamorphosed several times. Confusingly, chloritoid does not actually contain the element chlorine but instead is an iron magnesium manganese alumino-silicate hydroxide. This particular specimen is from Lyon, France: In larger sized specimen ...[Read More]
Imaggeo on Mondays: Arid lands and ancient lakes
Palaeoclimatologist Annett Junginger takes us to one of the hottest and driest places on Earth in this week’s Imaggeo on Mondays… The picture was taken in 2010 during the third in six expeditions to the remote Suguta Valley in the northern Kenya Rift. This unbelievably beautiful place is located just south of Lake Turkana and is one of the hottest and driest places in equatorial Africa. Temperatur ...[Read More]
The new EGU blog series on Education: GeoEd
Welcome to GeoEd, the new column on GeoLog dedicated to education in the geosciences! This is a series of posts written by the EGU Educational Fellow, Jane Robb that will cover the new and ongoing education initiatives across the EGU, as well as individual posts under the broad global pedagogical theme of education for sustainable development. GeoEd posts are aimed at formal and informal educators ...[Read More]
Geosciences Column: Climate-impact studies and their importance in a world of climatic uncertainty
A new hydrological climate-impact study by Nina Köplin and colleagues, in the European Geosciences Union journal Hydrology and Earth System Sciences, investigates the impacts of climate change on forest expansion and glacier retreat in Switzerland. This study raises important questions as to whether or not land cover changes should be considered as climate change impacts on hydrological systems, N ...[Read More]