Category Archives: Volcanism

Diamond Geyser – anatomy of a kimberlite eruption

Sorry, I can’t resist a pun. Kimberlite pipes are – geologically and economically – hugely important things. These weird  features appear on maps as simple circular(ish) structures, perhaps up to a few hundred meters across. They are the vent which … Continue reading

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Accretionary Wedge #46 – Geology, Life and Civilisation

For those of you who may not be aware, there is a fantastic thing in the geobloggosphere known as The Accretionary Wedge.  Every month or so,  someone hosts a specific topic.  Geobloggers are invited to contribute, and the submissions over … Continue reading

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Poking sleeping lions

I can only assume that the mass of exam papers in the department has caused a time-dilation.  It’s the only possible reason I can come up with for the fact it’s June next week. After the rush of #gradingjail starting … Continue reading

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Viennese Whirl – EGU 2012

Thought it might be time for a little update on how EGU’s been going for those of you who couldn’t make it (and a restaurant tip below for those who could). There’s been some really good science on show, and … Continue reading

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What happens when a pyroclastic flow goes out to sea

This is just a brief plug-post for anyone at the European Geosciences Union in Vienna this week.  Tomorrow at 9am in Room 4 I’m presenting some recent work I’ve carried out attempting to use a turbidity current model to infer initiation … Continue reading

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Interpreting satellite imagery

Sometimes when you see satellite imagery you can be utterly blown away by what you see.  In many of these cases there is no question about what you are looking at. The NASA Earth Observatory has posted a number of … Continue reading

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The pyroclastic flows of Mount Doom

I thought I might take the opportunity to write a few posts about my first love – pyroclastic density currents (PDCs).  These are basically particle-laden flows, rich in ash and pumice, which form from explosive eruption columns or the collapse … Continue reading

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El Hierro 5 – Resurgence?

It’s been a while since I’ve done one of my updates on the eruption offshore of El Hierro, and for those of you who aren’t regularly up on your volcano news, you may have been lulled into the belief that … Continue reading

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Sardinian geology and the art of protest

It’s been a while since I’ve had time to post, but as I’ve got everything I need to done before buggering off on a well-earned Christmas break, I thought I should take the opportunity to post some stuff I’ve been … Continue reading

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Shameless plug – European Geosciences Union session

Calling all sedimentologists, physical volcanologists, and flow modellers. Myself, Guilhem Douillet, Gert Lube, and Rich Brown are chairing a session at the EGU conference in Vienna next April, titled “Sedimentation and stratigraphy from pyroclastic gravity-driven flows“ Our hope is to … Continue reading

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