Category Archives: palaeomagic

Reconstructing ocean spreading when half your record is now in the mantle (or: a plug for my new paper)

If you’re studying the last 100 million years or so of plate tectonics, the history of sea-floor spreading recorded by the magnetic stripes that parallel and extend away from the Earth’s ocean ridges is a key source of information. Each … Continue reading

Categories: geology, geophysics, palaeomagic, tectonics

Scenic Saturday: our stripy oceans, explained 50 years ago today!

A slightly different Scenic Saturday this weekend, as we celebrate an important milestone in geological science: a look at the South Pacific through a geophysical lens. The colours on this map show fluctuations in the Earth’s magnetic field produced by … Continue reading

Categories: geology, palaeomagic, tectonics

AGU Dispatches: Convergence, the Caribbean and Cosmic Impacts (not)

AGU is all about pacing yourself. If you want to make it to the end of the week without your brain exploding from an overload of new science, you need to give it some down time. It was for this … Continue reading

Categories: conferences, earthquakes, geohazards, palaeomagic

AGU Dispatches: Posters and Pontification

There are two main ways to get your science at AGU: by sitting in on one of the dozens of sessions of themed talks, or browsing the monstrous poster hall in Moscone South. I spent Tuesday morning mostly wandering around … Continue reading

Categories: academic life, conferences, palaeomagic, public science

AGU Dispatches: Superchrons and subduction

I started the day with my paleomagician’s hat on, sitting in on a session looking at the long term behaviour of the Earth’s dynamo. Changes in the strength and reversal frequency of the Earth’s magnetic field give a unique insight … Continue reading

Categories: conferences, palaeomagic, tectonics