Seismologists are not surprised to see that the coronavirus lockdowns reduce seismic ambient noise; but what is emerging from the data is that the reduction is quite spectacular. This shows that human activities – road and railroad traffic, industrial machinery – account for a significant chunk of background Earth’s vibration: and that is a form …[Read More]
This week on the EGU GD Blog, we interview the newly elected incoming Geodynamics Division President, Jeroen van Hunen (Durham University). Jeroen takes on the role for 2021-2023, from Paul Tackley (ETH Zürich). Jeroen is a Professor within the Department of Geosciences, including the Geodynamics, Geophysics, and The Solid Earth research groups. He is originally …[Read More]
We all know it: the heart of many Master level courses is the term paper, a scientific essay drawn from the students’ work during the semester. It is a way of teaching students not only the content, but also the methodology of scientific work. And to keep them occupied during the semester break, of course. …[Read More]
How does an accretionary wedge form? For this edition of Minds over Methods, we have invited Jonas Ruh, lecturer in the Structural Geology and Tectonics group of the Geological Institute at the Department of Earth Sciences, ETH Zürich, to tell us about the Makran accretionary wedge, one of the largest on Earth. He explains how …[Read More]
This natural arch named Pirulico’s tower is located in Mojácar, situated in the south east of the Province of Almería (Andalucia) in southern Spain. A natural arch, natural bridge or, less commonly, a rock arch is a natural rock formation where a rock arch forms, with an opening underneath. Most natural arches form as …[Read More]
#MINERALMONDAY: your weekly dose of minerals every* Monday (* excluding the last few months of Mondays…). A lot of bad things have happened since the start of the year, but perhaps the least important of these is the complete lack of minerals every Monday. Don’t worry, we are back, and what better way to start …[Read More]
Folds are among the most strikingly beautiful structures we can observe in rocks. There are several ways folds may form in rocks. For instance, folds in sedimentary rocks may develop by liquefaction of soft sediments, but the most common way to produce folds – and also my favorite – is by deformation. When rocks are …[Read More]
Many scientific societies and similar organisations make awards on an annual or regular basis. It is one way of recognising a distinguished career, contribution to the community, etc., or providing a boost to the development of an Early Career Scientist. In the case of EGU, all awardees are expected to give a presentation of their …[Read More]
Through the eyes of a researcher studying mountain processes in the European Alps in the context of a global warming climate, let’s discover how geophysical methods help to better understand frozen ground! Permafrost defines a thermal state, i.e. permafrost is soil, sediment, or rock that remains at or below 0°C during at least two consecutive …[Read More]
Aïda rummages around within the lavish ball pit of rock samples as often as not, but is left unsure which rock type should be her number one: What is your favourite rock? Dear Aïda, I’ll be honest with you. Yeah, I’m surprised too… I don’t occupy myself that often with constructing countdown lists of rock …[Read More]
