GeoLog

Imaggeo

Imaggeo on Mondays: Layers of leg-like sandstone

John Clemens, a researcher from Stellenbosch University and one of the winners in the EGU Photo Contest 2014, opens our eyes to erosional processes in the Grand Canyon in this week’s Imaggeo on Mondays… The photo below was taken late in the afternoon while doing some geological tourism at the Grand Canyon in Arizona, USA. The light at this time of day is ideal for such locations as it has a ...[Read More]

Imaggeo on Mondays: A marvellous moving image

Every year, in association with our annual General Assembly, we run a photo contest to feature and celebrate fantastic geoscience images. Last year we introduced a moving image component to the competition, giving photographers the chance to submit short clips of great geoscience footage. Here’s this year’s highly commended entry by Matthias Buschmann… Svalbard’s stunning scenery (Credit: Matthias ...[Read More]

Announcing the winners of the EGU Photo Contest 2014!

The selection committee received over 200 photos for this year’s EGU Photo Contest, covering fields across the geosciences. Participants have been voting for their favourites throughout the week  and there are three clear winners. Congratulations to Trent Marwick, Velio Coviello and John Clemens – 2014’s fantastic photographers! Imaggeo is the EGU’s open access geosciences image repository. Photos ...[Read More]

Photo Contest finalists – who will you vote for?

The selection committee received over 200 photos for this year’s EGU Photo Contest, covering fields across the geosciences. The fantastic finalist photos are below and they are being exhibited in Hall X (basement, Blue Level) of the Austria Center Vienna – see for yourself! Do you have a favourite? Vote for it! There are terminals in Hall X, just next to the exhibit. The results will be announced ...[Read More]

Imaggeo on Mondays: Volcanic rope

On Hawaii, lava fields fall into two camps – pahoehoe and a’a. This week’s Imageo on Mondays puts the two into perspective… Pahoehoe fields are created when the lava is well insulated at the surface. The cooled rock on top prevents a lot of heat escaping and lets the lava flow beneath a tough skin of basalt. This skin is pulled and distorted by the moving lava, creating ripples and wrinkles that r ...[Read More]

Imaggeo on Mondays: A rolling stone gathers no moss

Philippe Leloup brings us this week’s Imaggeo on Mondays, with tales from a mountain trail that show a geologist can never resist a good rock! This image is that of a polished slab of a rock composed of interlayered marbles and amphibolites. The sample was once part of a small dry-stone wall bordering an outdoor kitchen along a trail along the Ailao Mountain Range in China (or Ailao Shan in Chines ...[Read More]

Imaggeo on Mondays: Rockscape

A geologist out in the field is often the one doing the mapping, but sometimes you might just find a map while you’re out there. Martin Reiser shares how he stumbled one such stunning feature… The picture shows colourful marly layers in a Triassic limestone of northwest Albania (Lezhe region). The marly layers have developed intense reddish and greenish colours due to exposure to reduction and oxi ...[Read More]

Imaggeo on Mondays: Winter waterfalls reveal their secrets

Cyril Mayaud is kicking of this week’s Imaggeo on Mondays with an insight into what waterfalls in winter can tell us about their local hydrology…  The picture below shows the lower Peričnik waterfall during winter season. This cascade system is composed of two successive waterfalls that stretch some 16 metres (upper fall) and 52 metres (lower fall) high and is one of the most beautiful natur ...[Read More]

Imaggeo on Mondays: Exploring the East African Rift

This week’s Imaggeo on Mondays is brought to you by Alexis Merlaud, an atmospheric scientist from the Belgian Institute for Space Aeronomy. While the wonders of the African atmosphere feature in his photography, the East African Rift has a much bigger tale to tell. Drawing from all aspects of geoscience Alexis shares its story… This picture shows Kilimanjaro, Africa’s highest mountain, at sunrise. ...[Read More]

Imaggeo on Mondays: Iceland’s highlands

This week’s Imaggeo on Mondays provides a little insight into what you might find beneath your feet as you explore the Icelandic highlands…  You can stumble upon wild blueberries, better known to botanists as vaccinium uliginosum, in cool temperate regions of the Arctic, as well as other mountainous areas including the Pyrenees, Alps, and Rockies. They thrive in wet acidic soils – the sort y ...[Read More]