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The Authors
For lot's more videos on soil moisture topics, see Drs Selker and Or's text-book support videos https://www.youtube.com/channel/UCoMb5YOZuaGtn8pZyQMSLuQ/playlists
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Author Archives: Chris Rowan
Two reflections on the largest earthquake yet recorded, 60 years later.
It has been 60 years since a magnitude 9.5 earthquake struck the Chilean coast near Valdivia. The stats for this earthquake remain pretty mind-blowing even today. It is still the largest earthquake ever recorded – over 20% of the Earth’s seismic energy … Continue reading
At subduction zones, feeding a complicated plate means you get complicated earthquake behaviour out
What drives the occurrence of slow-slip events on subduction zones: “earthquakes”: that involve strain release over days and weeks rather than seconds? A new paper…doesn’t really answer that question, but it shows why it’s so complicated to answer. The study uses … Continue reading
Remagnetisation spoils the paleomagnetic party again
Did the Earth have a magnetic field before 3.5 billion years ago? Previous paleomagnetic studies of the world’s oldest mineral grains – the Jack Hills zircons, which have maximum ages of 4.4 billion years – claimed that tiny inclusions of … Continue reading
Older than the solar system
As Carl Sagan once said, “we are made of star stuff“: and here some of it is; mineral grains formed around distant suns, hundreds of millions of years before our solar system was born. These grains of silicon carbide were … Continue reading
Nice plan for content warnings on Mastodon and the Fediverse. Now you need a Mastodon/Fediverse button on this blog.