S-C mylonites developed in andalusite-cordierite micaschist (Calamita Schists) in the contact aureole of the Porto Azzurro pluton. The white layers are made of quartz, while the brown layers consist predominantly of white mica and biotite. Top-to-left (East) sense of shear. Read more: Papeschi et al (2017). Heterogeneous brittle-ductile deformation at shallow crustal levels under high thermal cond ...[Read More]
GeoLog
A Pedagogical Dance: EGU’s Teacher-Scientist Pairing Scheme
An email from Giuliana Panieri, a geology professor at the Arctic University of Norway (UiT) in Tromsø, cracked my pandemic bubble late last year. She invited me to join an unconventional expedition (AKMA OceanSenses) to the Arctic Ocean, where scientists worked hand-in-hand with other societal actors, to integrate different kinds of knowledge and create tools that help open up people’s minds to a ...[Read More]
GeoLog
Sustainable Energy Geoscientist reflects on UN’s COP27
This year, from 6 to 20 November, the United Nation’s COP27 took place in Sharm el-Sheikh in Egypt. The conference hosted several high-level and side events, key negotiations and press conferences, attended by more than 100 Heads of State and Governments and over 35,000 participants who deliberated climate action strategies around the world. I had the chance to speak with Dr Munira Raji about her ...[Read More]
GeoLog
Imaggeo On Monday: Computing for a blank globe
A tribute to the computational geosciences. A mix of computer infrastructure, a modern workstation, and a simple globe with coastlines. Found this scene at the back of room at Miraikan – the National Museum of Emerging Science and Innovation in Tokyo, Japan. The computers, screens, and globe are behind a plexi-glass and while not intended as part of an exhibition it almost becomes an art-mee ...[Read More]
GeoLog
GeoPolicy: A new step to build robust science-for-policy ecosystems in Europe
On 25 October, The European Commission published a Staff Working Document that aims to help Member States build capacity to use scientific knowledge more effectively in their policymaking processes. This month’s GeoPolicy Blog post provides a summary of the Staff Working Document that outlines key science for policy challenges and the EU instruments, resources and policy frameworks that can help M ...[Read More]
GeoLog
Imaggeo On Monday: Mud extrusion, Gobustan, Azerbaijan
In Gobustan, Azerbaïdjan, gases such as methane or carbon dioxide are emitted in the underground. They lower the density of the overlying sediments which are pushed upwards by buoyancy. Fingering instabilities occur, where more mobile and lighter sediments form vents and mud volcanoes with upwards moving material. Many small scale cones are deposited when the conduits reach the surface, depositing ...[Read More]
GeoLog
GeoTalk: meet Morelia Urlaub, researcher of underwater landslides!
Hi Morelia. Thank you for joining us today! Could you tell our readers a bit about yourself and your research? Hi, I am Junior Professor for Marine Geomechanics at GEOMAR Helmholtz Centre for Ocean Research Kiel and Kiel University in Germany. I graduated at the University of Bremen (Germany) and did my PhD in 2013 at the National Oceanography Centre Southampton in the UK. After a short postdoc th ...[Read More]
Geodesy
EGU Campfire Geodesy 101 – First Edition
We all welcome you around our first EGU Geodesy 101 Campfire to listen to an exciting presentation about reference frames from Xavier Collilieux. This new Geodesy 101 Campfire series aims to introduce geodesists and non-geodesists into a specific geodetic topic. The first Geodesy 101 Campfire is dedicated to terrestrial reference frames. Below you can find detailed description about the upc ...[Read More]
GeoLog
Imaggeo On Monday: Comb through the mysteries of Comb Ridge, Utah
Scientists have combed through the mysteries offered by this ridge for a long time. This is an aerial image of the linear north-south ridge in South-Eastern Utah. First mapped by modern geoscientists in the late 19th century, the ridge is home to numerous Puebloan cliff dwellings and petroglyphs. It is a National Natural landmark and home to the only fossils of a mammal-sized cynodonts (tritylodon ...[Read More]
GeoLog
The theory of continental drift and how it changed the geosciences forever
German scientist Alfred Wegener spent most of his life defending a shocking theory: that all the world’s continents were once part of the same land mass before they drifted away. For many years after he passed, his theory continued to be shunned, ridiculed, and labelled as pseudoscience. And then, several decades later, geologists began to find more and more proof to support his continental drift ...[Read More]