Blog Profile / Highly Allochthonous
| URL : | http://scienceblogs.com/highlyallochthonous/ | |
|---|---|---|
| Filed Under: | Academics / Geology | |
| Posts on Regator: | 366 | |
| Posts / Week: | 1.3 | |
| Archived Since: | February 24, 2008 | |
Blog Post Archive
Saltation
The winds of change have caught a-hold of our little blog, cast it out into the wider internet, and dropped it down into it's own domain. We can now be found at: http://all-geo.org/highlyallochthonous We have both greatly appreciated the chance to write here at Scienceblogs. Show More Summary
Unconformity
After some discussion, Ann and I are putting Highly Allochthonous on hiatus whilst we consider our future here on Scienceblogs.
This decision is not made lightly. But the events of the last 24 hours have forced us to consider whether...Show More Summary
Today's Hot Topic? Bottled Water
On this hot, hot day, when much of the eastern United States is beset by a record-breaking heat wave, what could be more refreshing than a nice cold, fresh bottle of water? After all, that's exactly what is recommended by CDC health officials for prevention of heat-related illness: Drink more fluids (nonalcoholic), regardless of your activity level. Show More Summary
Stuff I linked to on Twitter last week
Another week, another list of interesting links originally shared via Twitter. Earthquakes Seismologists on trial triggers scientific debate [Mixing up scientific & legal arguments? This will be messy] http://blogs.nature.com/news/thegreatbeyond/2010/07/_seismologists_on_trial_trigge.html (via...Show More Summary
Dear readers: tell us about yourself
One of the blogging commandments should probably be: know thy readers! Therefore we are following the example of Janet, DrugMonkey and various others (who are themselves riffing from Ed Yong's original idea) and asking you, our readers,...Show More Summary
Friday focal mechanisms
This is a bit of an experiment. People seem to quite appreciate my posts that place significant earthquakes in their tectonic context (e.g. #1, #2, #3). However, I can't write a detailed post for every single one. So I'm wondering if...Show More Summary
How do we know Gabon's 'multicellular' fossils are 2.1 billion years old?
The fossil record prior to 550 million years ago is so patchy that every discovery is going to cause some fanfare. That is certainly case with these odd looking things, which have been proclaimed in Nature as the oldest mulitcellular organisms ever found. A 2.1 billion year old fossil atop the bed it was preserved in. Show More Summary
Creeping fault segments are showing their age
What does faulting do to a rock 2 miles beneath the Earth's surface? Thanks to the San Andreas Fault Observatory at Depth (SAFOD) project, which retrieved samples across an active segment of the San Andreas Fault from 3000m below the...Show More Summary
Stuff I linked to on Twitter last week
A selection of the interesting things that I've found and shared on Twitter since I got back from my holidays. Earthquakes Analysis of samples from San Andreas Fault borehole suggest creeping sections lubricated by clays. http://www.eurekalert.org/pub_releases/2010-06/uom-tcc062410.php (via...Show More Summary
Yellowstone it was
Give yourselves a pat on the back: virtually everyone guessed correctly that my fortnight away was chiefly spent exploring Yellowstone National Park, bookended by some time in Grand Teton National Park just next door. The first photo I showed you was of a dead tree standing in a growing expanse of silica deposited by a nearby hot spring. Show More Summary
Old tectonic scars run deep: the magnitude 5.0 earthquake in Ontario
Yesterday, eastern Canada was shaken by a magnitude 5 earthquake. This is, at first glance, a rather surprising event, because if you were to ask me to point out the most likely place for an earthquake to occur in Canada, I would point...Show More Summary
Where on Earth was Chris?
My regular readers are probably quite used to my occasional bouts of silence on this blog, but my low internet profile in the past fortnight has been for the quite justifiable reason that I was away on holiday. I had a blast, and unsurprisingly...Show More Summary
The intimate coupling of hydrologic and geomorphic evolution of basalt landscapes
How does a landscape go from looking like this... ~1500 year old basaltic lava landscape with no surface drainage o looking like this? 2 Million year old landscape on basaltic lava. Note steep slopes and incised valleys Find out in my...Show More Summary
Urban streams with green walls
Note: This post is a collaborative effort by Anne and guest blogger Will Dalen Rice, a graduate student in the Department of Geography and Earth Sciences at UNC Charlotte. He had the misfortune of taking a couple of courses from Anne...Show More Summary
Accretionary Wedge #25: An Illustrated Glossary of Cool Geological Things
Welcome to the latest edition of the Accretionary Wedge geoblogging carnival. We've been delighted by the response to our call for your favourite geological imagery, and the number of nominations we've received has been matched by their...Show More Summary
Lava lake tectonics
As cool geo-imagery has poured in for the upcoming Accretionary Wedge, I have been pondering what I should throw into the collective album. Eventually, I decided that when it comes to dramatic imagery that ties into my geological interests (albeit somewhat obliquely), you can't beat a lava lake.
The Erta Ale lava lake, Ethiopia. Show More Summary
When it rains a lot and the mountains fall down
2006 debris flow deposit in the Eliot Glacier drainage, north flank of Mount Hood, Oregon (Photo by Anne Jefferson) The geo-image bonanza of this month's Accretionary Wedge gives me a good reason to make good on a promise I made a few months ago. Show More Summary
Top Kill: what BP is trying to do
I've been finding media coverage of operation 'Top Kill' - BP's latest attempt to seal the Deepwater Horizon well leak in the Gulf of Mexico - rather confusing, so I've attempted to think through what pumping mud into the well is trying to achieve, and what we should expect to see if it is succeeding. Show More Summary
The hydrogeology of Yellowstone: It's all about the cold water
The Yellowstone caldera is home to thousands of geothermal springs and 75% of the world's geysers, with kilometers-deep groundwater flow systems that tap magmatic heat sources. As that hot groundwater rises toward the surface, it interacts...Show More Summary
Macro rock photography with the iPhone
Earlier today Callan showcased a rather cool idea first dreamed up by fellow Scibling Alex Wild at Myrmecos: using a hand lens to shorten the focal length of the iPhone camera into the realms useful for macro photography. I had to try this out myself, so I grabbed the nearest interesting hand specimens and got snapping. Show More Summary