GeoLog

Imaggeo on Mondays

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]

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]