Ocean Sciences

Imaggeo on Mondays: the remotest place on Earth?

Laura Roberts-Artal January 16, 2017

Heard. Credit: Anna Lourantou (distributed via imaggeo.egu.eu)

Perhaps a bold claim, but at over 4,000 km away from Australia and 4,200 km from South Africa, Heard Island is unquestionably hard to reach. The faraway and little know place is part of a group of volcanic islands known as HIMI (comprised of the Heard Island and McDonald Islands), located in the southwest Indian Ocean. Shrouded in persistent bad weather and surrounded by the vast ocean, Heard Isla ...[Read More]

Geosciences Column: Do coastlines have memories?

Laura Roberts-Artal January 6, 2017

Man O' War Cove Credit: Sarah Weick, (distributed via imaggeo.egu.eu

Did you know that the shape of coastlines is determined by the angle at which waves crash against the shoreline. It has long been thought that fluctuations in the wave incidence angle are rapidly felt by coastlines, which change the shapes of their shores quickly in response to shifting wave patterns. Or do they? Researchers at the British Geological Survey, Duke University (USA) and Woods Hole Oc ...[Read More]

The best of Imaggeo in 2016: in pictures

Laura Roberts-Artal December 26, 2016

The best images of 2016, from imaggeo, as chosen by our readers and followers.

Imaggeo, our open access image repository, is packed with beautiful images showcasing the best of the Earth, space and planetary sciences. Throughout the year we use the photographs submitted to the repository to illustrate our social media and blog posts. For the past few years we’ve celebrated the end of the year by rounding-up some of the best Imaggeo images. But it’s no easy task to pick which ...[Read More]

Imaggeo on Mondays: The odd ‘living’ rocks

Laura Roberts-Artal October 17, 2016

Huepac stromatolites . Credit: Hugo Beraldi (distributed via imaggeo.egu.eu)

Microbialites – structures which result from the interaction between microbes and sediments – have existed in the rock record since 3700 Ma ago until the present day. The presence of microbes in environments where mineral precipitation is prevalent, usually derives in the development of such chemical sedimentary structures. This can take place in marine, non-marine, and subterranean environm ...[Read More]