I am a PhD student at the University of Liverpool Geomagnetism Laboratory. My current research project is the palaeomagentic study of 3.5-3.2 billion year old rocks from South Africa. The aim of my research is to improve our understanding of the long term evolution of the Earth and the surface conditions under which the first forms of life originated through using palaeomagnetic records. The rock ...[Read More]
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GeoLog
Imaggeo on Mondays: Metamorphosis
This fold is part of the metamorphic core of the Pyrenees. The shear zone is almost vertical, producing a small parasitic fold (a smaller fold within a larger one), which looks almost as if it continues into the sky. The metamorphic sediments are about 500 million years old and have been deformed several times, most recently during the alpine orogeny. The alpine orogeny was period of extensive mou ...[Read More]
GeoSphere
The Truth about Radon
There are few things on Earth that evoke more fear than radioactivity. Most people’s response to radioactivity is one of immediate fear and confusion and I can’t say I blame them. There is something very frightening about a substance that shoots off invisible rays that can kill you if you’re exposed to enough of them. However, most people really don’t need to worry about be ...[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]
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
Imaggeo on Mondays: Ephemeral winter wonderland
Today’s text is brought to you by the author of this impressive picture, Patrick Klenk (Heidelberg University, Germany). This photograph is part of a series of images which I took in Death Valley National Park on a brisk December morning in 2011. In this case, we were close to Aguereberry Point, a mountain viewpoint located at 1961m above sea level, overlooking the central part of this “vast ...[Read More]
GeoSphere
A GeoPoetry Anthology – Accretionary Wedge #51 Compilation
Firstly, I would like to thank everyone that participated in this edition of the Accretionary Wedge. There were a few comments that the topic was somewhat out of people’s comfort zone so I am glad that there was still fantastic participation and people willing to try poetry writing out even if it was a different sort of medium. As you know poems come in all shapes, sizes and subjects and a k ...[Read More]
GeoLog
If Only We Had Been Taller: The Mars Curiosity mission
Today we feature a guest post by Mona Behl, a Visiting Fellow at the American Meteorological Society. Mona provides a review of the current Mars mission, including an overview of the revolutionary instruments featured aboard the Curiosity rover. “The fence we walked between the years did balance us serene. It was a place half in the sky wearing the green of leaf and promising of peach. We’d reach ...[Read More]
GeoLog
Imaggeo on Mondays: The strangest volcano on Earth
Natural Geographic describes Ol Donyo Lengai (pronounced ol doyn-yo len-guy), a mountain in northern Tanzania, as the ‘strangest volcano on Earth’. It is the planet’s only volcano known to produce lava made of natrocarbonatite, chemically similar to laundry soap, which hardens and decays almost immediately upon exposure to the atmosphere. It is very rare for natrocarbonatite, a type of igneous roc ...[Read More]
GeoLog
Friday at the 2012 General Assembly
We’ve made it – welcome to the final day of the 2012 General Assembly! Although so close to the end, today offers plenty of Union-wide events. Be sure to complement the information below with EGU Today, the daily newsletter of the General Assembly, available both in paper and for download here. One of the highlights of the day is the co-organised session entitled Advances in understand ...[Read More]