One piece of evidence that helped to establish the theory of Plate Tectonics in the early-1960’s was the recognition of patterns of magnetisation in the basalts of the seafloor that were symmetrical about the global oceanic ridge system. Fred Vine and Drummond Matthews recognised that this pattern had to be fixed in place as the lavas, that were erupted along the ocean ridge, cooled through ...[Read More]
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GeoLog
Geosciences Column: The contribution of climate change to water scarcity in the MENA region
In this month’s Geoscience’s column, Alex Stubbings discusses the water scarcity problems in the Middle East and North Africa region and the recent developments in modelling water resources here. The Middle East and North Africa (MENA) region is considered the most water-scarce region in the world. As such, the region faces a multitude of challenges in the 21st century including population growt ...[Read More]
Green Tea and Velociraptors
A new feathered dinosaur – worth getting ruffled for?
Two new feathered dinosaur articles appeared in the latest edition of Nature Communications; one on gender identification in a well-known theropod (the meat noshing ones), and the subject of a forthcoming blog post, and another on a new feathered fiend from, surprise surprise, China. I normally really don’t like writing about theropods, especially of the feathered variety, as it just seems l ...[Read More]
GeoSphere
Geology Photo of the Week #19 – Jan 27 – Feb 2
Hi Everyone, Sorry this post is a bit late. Things have been crazy the last few days in the lab. I am trying to get enough done in the next few weeks to submit an abstract to a conference and I still have quite a long way to go. The 19th photo of week was taken by me at the Hogan Sand Pit just north of Ottawa near Cantley, Quebec. It is a pretty interesting sedimentological feature called a “ ...[Read More]
GeoLog
Geosciences Column: Hazard perception – how great is the risk of a rockfall?
In this month’s Geoscience’s column, Sara Mynott discusses the geological hazards associated with climate warming and how recent research sheds new light on our understanding of rockfall frequency. Rockfalls are the free-falling movement of bedrock material from a rock face, a phenomenon also encompassed by the terms ‘landslide’, ‘rockslide’ and ‘rock avalanche’. They range from small debris falls ...[Read More]
Green Tea and Velociraptors
DINOSAUR! But what does it mean..?
Palaeontology probably isn’t the most difficult of sciences, but it does incorporate aspects of chemistry, biology, and physics to a certain degree, as with many other geoscientific disciplines. Palaeontologists are also well known for the mysterious and unintelligible ‘science-speak’ that they use in research papers, fueled by this combination of a multitude of various sciences, ...[Read More]
GeoLog
Imaggeo on Mondays: Rainbow in stone
Nothing better characterises the wild US West than endless landscapes of red hoodoos, spires of rock protruding from the bottom of an arid drainage basin or badland. Found mainly in desert and dry, hot areas, hoodoos are distinctive from similarly-shaped formations, such as spires or pinnacles, because their profiles vary in thickness throughout their length. Their distinctive colour bands are the ...[Read More]
Geology for Global Development
Guest Blog: From the President of the International Association for Geoethics
Prof. Jesús Martínez-Frías is the head of the planetology and habitability department in the ‘centro de astrobiologica’ in Madrid. He is also the new president of the International Association for Geoethics (IAGETH). We did a short piece promoting another geoethics organisation in December, and here Jesús elaborates on the history and significance of geoethics… Although Geoethics ...[Read More]
GeoSphere
Guest Lecture – Dr. Tim Lowenstein
Our department was recently lucky enough to have Dr. Tim Lowenstein from SUNY Binghamton come give a guest lecture on the changes in the chemistry of seawater throughout geologic time. Originally, we thought that the major ion chemistry in the past was more or less the same as it is today. However, over the last 10 years this long standing belief has been challenged by many researchers and champio ...[Read More]
GeoLog
Register for the EGU General Assembly 2013
Online pre-registration to the 2013 EGU General Assembly is open until 13 March 2013. The meeting, taking place in Vienna from 07–12 April, brings together over 10,000 scientists from all over the world and covers all disciplines of the Earth, planetary, and space sciences. To register, you will need to create an account with Copernicus, our meetings’ organiser, if you don’t already have one ...[Read More]