Larger than your average mica
Ooh, and it's shiny, too!
Posted by Chris Rowan at 1:43 PM • 4 Comments •
Highly Allochthonous
Vaguely Informed Commentary From the Wide World of Earth Science
Profile
Chris Rowan is a geologist specialising in the dark arts of paleomagnetism, and getting people to pay him to travel to exotic destinations for fieldwork. Having drilled up New Zealand during his PhD, he is now a post-doc at the University of Johannesburg.
What the heck does 'Highly Allochthonous' mean?
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Recent Comments
- Sean Mullan on Hydrogeology is hot!
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- Don Garlick on Greigite, mineral of evil
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Recent Posts
- Hydrogeology is hot!
- A (hopefully) brief pause
- Geopuzzle #14
- Volcanoes triggering volcanoes?
- More thoughts on illustrating geological time
- While I'm asking you for your opinions...
- Timescales for all
- When the hell are we?
- Tectonics shown to drive changes in biodiversity
- One Geology is very cool indeed
Blogs I read
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Geology
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- Andrew Alden
- Apparent Dip
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- Hindered Settling
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Other Information
July 31, 2008
July 30, 2008
Leopard vs Crocodile
Category: bloggery
Remember the sign I saw on one of my sampling trips earlier this year? It was certainly brought to my mind by last week's story about marauding Russian bears. Encountering a leopard or a crocodile would be pretty scary; however,...
Posted by Chris Rowan at 7:02 AM • 0 Comments •
July 28, 2008
2700 million years in one outcrop
Category: geology
Now this is what I call continental stablity...
Posted by Chris Rowan at 11:11 AM • 6 Comments •
Crackers and me
Category: ranting
I preface these comments with the following two disclaimers: (1) PZ Myers has the right to write what he likes on his blog, and he certainly has the right to dispose of items in his possession, be they (supposedly) edible...
Posted by Chris Rowan at 5:19 AM • 10 Comments •
July 25, 2008
Geopuzzle #13
Category: geopuzzling
Whilst I struggle to cope with the suddent onset of dementia in my beloved but aging laptop (which causes it to switch off 5 seconds after I switch it on, before it even gets to the stage of booting up),...
Posted by Chris Rowan at 11:18 AM • 17 Comments •
July 23, 2008
Volcanoes: our noble allies in the battle against export productivity
Category: volcanoes
Finally, a blogospheric spat that actually matters. Craig McClain over at Deep Sea News has accused volcanoes of being the implacable enemies of marine life, based on new research linking them to some bouts of extreme ocean anoxia (where the...
Posted by Chris Rowan at 11:34 AM • 10 Comments •
When bears attack
Category: fieldwork
We've discussed before how geologists' pursuit of the critical outcrop sometimes puts us in somewhat sticky situations, but in this story, rather scarily, its not so much a case of geologists ambling into danger as danger ambling towards them. At...
Posted by Chris Rowan at 6:54 AM • 4 Comments •
July 22, 2008
Back
Category: fieldwork
So, I'm back in Johannesburg, after a very interesting trip which took us all the way from Archean congolomerates in the stable continental interior to diamond-bearing Tertiary alluvial gravels on the West Coast. Plenty of stuff to talk about, then...
Posted by Chris Rowan at 11:54 AM • 4 Comments •
July 14, 2008
Electronic field notebooks: useful, or pain in the posterior?
Category: fieldwork
The UJ mapping class this year were piloting electronic field notebooks, with each group being given a PDA in which they could enter a locality, a description, and any structural data they were measuring. Especially with the structual data, this...
Posted by Chris Rowan at 8:40 AM • 15 Comments •
July 11, 2008
Are jeans sensible fieldwear?
Category: fieldwork
One thing I noticed amongst the students on last week's trip was that a fairly sizeable proportion of them were regularly wearing jeans in the field. You are unlikely to see British third year geology students opting for denim in...
Posted by Chris Rowan at 10:45 AM • 30 Comments •
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