Philosophia Naturalis #7

Check out the latest edition of the physical sciences blog carnival Philosophia Naturalis over at Geek Counterpoint. Lorne Ipsum has decided to go downmarket by applying tabloid-style headlines to other bloggers’ well crafted prose.

Once again, I failed to submit anything, but given all my relocation hassles I think I can be forgiven.

Categories: links

Lusi: the man-made mud volcano

(Reposted – with an update – from ye olde blog)
The latest from Lusi

In May 2006, an exploratory gas well being drilled in eastern Java hit a limestone aquifer. Because the lower part of the well had not yet been ‘cased’ – sealed off from the surrounding rock – a surge of overpressured water was released into the mudstones higher in the borehole, fracturing them and mixing them into a hot mud which eventually made its way to the surface near the drilling rig.

Since then, since then, 7,000-150,000 cubic metres of mud (up to 40 olympic swimming pools’ worth, in media units) a day has been disgorged from a vent dubbed ‘Lusi’, burying surrounding villages. I found this video on You Tube showing the encroachment of the mud – a rising tide which shows no sign of stopping.

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Categories: geohazards, geology, Lusi

What the heck does Highly Allochthonous mean?

The first thing to get out of the way is the matter of my blog’s title, which has garnered accolades ranging from ‘more difficult to pronounce than Pharyngula’ to ‘awesome geo-nerd term’.

An allochthon is a sequence of rocks which has been superimposed by faulting on top of another sequence which it was originally a large distance away from; for example, a sequence of sediments which were originally deposited in the deep sea, and have then been thrust over shallow marine or continental deposits of a similar age.

allochthon.png

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Categories: bloggery, geology

Welcome to (even more) Highly Allochthonous

Hello everyone, and welcome to the new home of ‘Highly Allochthonous’!

As regular readers already know, I’ve just completed a physical move to the southern hemisphere; but it some ways my electronic relocation, courtesy of the nice people here at Scienceblogs, seems even more unreal. I’ve occasionally commented here (and elsewhere) under the name ‘gengar’ – which has resulted in my old blog currently holding steady at #9 on the Google search for a Pokemon name – but I never imagined that I’d end up posting in such distinguished company.
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Categories: bloggery