With time to spare during self-isolation and local lockdown, Mark wonders: What programming language should I learn for my geoscience career? Dear Mark, The pandemic has made us look long and hard at our career choices. Were you inspired as a student by a cool field geologist in a documentary? Were you profoundly marked by that school trip at an active volcano? Did you fell in love with coral reef ...[Read More]
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Geodynamics
The mantle as seen from the core: more than a thermostat
Geodynamics does not stop at the core-mantle boundary – the Earth’s outer core is a truly dynamic geosystem. This week Stefano Maffei (Research fellow) and Chris Davies (Associate Professor) from the School of Earth and Environment at the University of Leeds tell us more about the possible interplay between mantle and core and some of the remaining mysteries of the Earth’s magnetic field generatio ...[Read More]
GeoLog
Imaggeo On Monday: Hedenbergite – Ilvaite skarn, Calamita, Island of Elba
In this photo taken on the Isle of Elba in Italy you can see several radiating crystals of greenish Hedenbergite, inter-grown with blackish coloured Ilvaite in skarn bodies. Skarn is an unique formation that formed as a result of the interaction between geothermal fluids and the host rock. In this case the geothermal fluids come from the Late Miocene Porto Azzurro monzogranite, and Mesozoic marble ...[Read More]
Cryospheric Sciences
Image of the Week – What darkens snow and ice?
“Be thou as chaste as ice, as pure as snow”. Hamlet, Act 3 Scene 1 (W. Shakespeare) Snow and ice are not always as pristine as one may think. If you have ever walked on a glacier or on a snowfield during summer, you might have already noticed that. In fact, both snow and ice are often darkened by impurities. In this blog post, you will learn about the main processes leading to ice and snow darkeni ...[Read More]
Geodynamics
Advanced geodynamic models of giant earthquakes
Though giant earthquakes are disastrous, they provide essential information to investigate earthquake physics. In this week’s news and views, Thyagarajulu Gollapalli, a PhD student jointly from the Monash University and the Indian Institute of Technology, Bombay, discusses our present understanding of such big earthquakes and how advanced numerical models will help to get a more precise picture of ...[Read More]
Tectonics and Structural Geology
TS Must-Read – Wilson (1965) A New Class of Faults and their Bearing on Continental Drift
In 1965, JT Wilson published “A New Class of Faults and their Bearing on Continental Drift” (https://doi.org/10.1038/207343a0). This is one of the papers that led to a paradigm shift in Earth Sciences and would become one of the bases of plate tectonics. The concept of the transform fault, introduced in this paper in a very smart way, is fundamental in tectonics textbooks nowadays. Indeed many of ...[Read More]
Cryospheric Sciences
Climatic drivers of permafrost mounds in North American peatlands
Permafrost, or perennially frozen, peatlands are among the world’s largest terrestrial carbon stores and are particularly threatened by warming climates. Understanding how modern climate controls the distribution of permafrost peatlands is crucial for making confident predictions of their past and future extents. What are permafrost peatlands? Peatlands are wetlands that develop where cold, wet co ...[Read More]
Hydrological Sciences
Water Researchers of Color experts in their fields
The Water Researchers of Color (WaterPOC) database is a resource that aims to add to numerous efforts in the last year to raise awareness of Black, Indigenous, and people of color (BIPOC*) in science, in this case specifically multiple disciplines intersecting with water. This resource mirrors many others, such as 500 Queer Scientists and 500 Women Scientists and numerous other databases [1], whic ...[Read More]
Seismology
From light to waveform: how fiber-optic cables can be repurposed as seismic arrays
What is Distributed Acoustic Sensing (DAS) and why is it exciting? Any observational seismologist would agree that our understanding of subsurface structure and dynamics is in great part limited by our ability to acquire data at the right locations, with the necessary spatial and temporal resolution. However, although our ultimate objective would be to cover the Earth with high-quality, broadband ...[Read More]
Geodynamics
Baking geological cakes!
Who doesn’t love baking? Seriously, baked goods are the best: with or without gluten, with or without chocolate. But you know what makes every bake out there even better? A geological theme. You heard it here first! This week, Ruth Amey, postdoctoral researcher and programme manager of the Earth Observation Center for Doctoral Training at the University of Leeds, United Kingdom, discusses th ...[Read More]