What plate tectonics doesn't tell you
How the past may be the key to the tectonic presentPosted on February 23, 2008 10:54 AM • 2 Comments •
Highly Allochthonous
Vaguely Informed Commentary From the Wide World of Earth Science
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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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Other Information
tectonics:
New Zealand gets a festive shaking
When I was out in New Zealand doing fieldwork for my PhD, I spent most of my time based in Gisborne, a sleepy little town on the east coast of the North Island. Over Christmas, it seems that Gisborne was...Posted on January 25, 2008 9:27 AM • 2 Comments •
Martian plate tectonics
Are striped magnetic anomalies on the Red Planet evidence of ancient sea-floor spreading?Posted on December 12, 2007 10:00 AM • 3 Comments •
Pictures from an undersea eruption
Mid-ocean ridges are a fundamental component of the Earth's tectonic engine: they mark places on the earth's surface where two plates are moving apart, creating space for mantle rocks to move upwards, decompress, and melt. Every year, the resulting...Posted on December 6, 2007 10:22 AM • 1 Comments •
The Indian plate's days as a Cretaceous boy-racer
Does the thickness of a tectonic plate control its speed?Posted on October 24, 2007 12:30 PM • 7 Comments •
The heart of the fault zone
For all that we currently know about earthquakes and faulting, seismology remains primarily a descriptive science. We can tell where an earthquake occurred, and how powerful it was, but we still don't understand why some ruptures trigger failure over a...Posted on October 6, 2007 11:30 AM • 4 Comments •
More on the Japanese earthquake
How this weeks' earthquake fits into the overall tectonic picture in the western Pacific.Posted on July 19, 2007 8:50 AM • 4 Comments •
Rebellious mantle refuses to tie itself to ridge axis
The new geophysics results from the spreading ridge on the East Pacific Rise, just published by Toomey et al., have already been mentioned on Deep Sea News: as guest poster Kevin Zelnio discusses, this new mapping of where the mantle...Posted on March 23, 2007 10:25 AM • 4 Comments •
