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The cliffs look like a bas-relief sculpted by a tireless artist. Naturally carved by the wind and sea, Vlychada’s white cliffs border its black sands, on the southern shore of Thera (Santorini), Greece. Both are of volcanic origin. The material originates from the Late Bronze Age eruption around 1600 BCE, which also buried the prosperous Akrotiri settlement. This massive Plinian eruption led to th ...[Read More]
Ice shelves (the floating parts of the Antarctic ice sheet) play a fundamental role in the stability of the Antarctic ice sheet (see this post) and, therefore, its contribution to global sea-level rise. They lose mass primarily through melting at their bases, which are in contact with the ocean. This thins them and makes them more vulnerable, reducing their stabilising potential and causing more i ...[Read More]
By Jack Wilkin. One of the techniques used to examine fossils in the laboratory is photography with the aid of UV light. Ultraviolet light causes minerals in the fossils to fluoresce creating a clearer contrast between the fossil and the surrounding matrix. Ultraviolet photography is a cost-effective laboratory technique that can be readily applied to a wide range of strata types and taxonomic gro ...[Read More]
Hello! My name is Erika Palmerio and I am a newly qualified Dr in space physics from the University of Helsinki, Finland. In this blog post I will talk about my PhD research and my future career plans. The title of my PhD dissertation is “Magnetic structure and geoeffectiveness of coronal mass ejections”. Coronal mass ejections (or CMEs) are huge and spectacular clouds of magnetic field and plasma ...[Read More]
As geoscientists in Europe, we should consider ourselves to be very lucky to have a rich architectural heritage. The first insights we gain about the geology of an area can be read in beautiful historic buildings. For centuries, construction and architecture have been driven by two constraints: adapt to the local environment, and use locally available materials. Heritage buildings thus represent v ...[Read More]
GeoTalk interviews usually feature the work of early career researchers, but this month we deviate from the standard format to speak to the newest member of the EGU office, Terri Cook. Terri is an award-winning science and travel writer who has a passion for geology and storytelling. You can find her work featured in a number of news outlets, including Scientific American, New Scientist, Eos, Lone ...[Read More]
Recent geological data shows that during a very cold phase of our Earth’s climate (between 40,000 and 26,000 years ago), there was a huge expansion of polar ice sheets, yet the north-eastern part of the Greenland ice sheet was less extensive than today. How could this have occurred? In this post we shed light on the potential causes of this ice sheet behaviour. What do we know about present- ...[Read More]
Every week, The Sassy Scientist answers a question on geodynamics, related topics, academic life, the universe or anything in between with a healthy dose of sarcasm. Do you have a question for The Sassy Scientist? Submit your question here or leave a comment below. After reading up on many of the aspects described for the earthquake cycle that were oftentimes presented through fundamental observat ...[Read More]
![For Dummies – How do wildfires impact permafrost? [OR.. a story of ice and fire]](https://blogs.egu.eu/divisions/cr/wp-content/blogs.dir/17/files/2019/10/DJI01011-700x400.jpg)
Wildfire – like the ones observed in the Northwest Territories, Canada in 2014 (Fig. 1) – is a natural part of permafrost landscapes, but fires are expected to get more frequent and severe as the climate warms. This could accelerate the degradation of permafrost, with negative consequences on the local and global scale! We have a pretty good understanding of how permafrost responds to fire t ...[Read More]
Introduction Humans have existed and lived alongside volcanoes for as long as we have been on the planet. For some, this has been beneficial and often, in fact, we can see how indigenous knowledge finds a sustainable approach living with them. However, in some cases, societies cannot cope and are overwhelmed with volcanic eruptions. There are many examples from archaeological studies dealing with ...[Read More]
