Monday, October 12, 2009
Saturday, October 10, 2009
Samoa tsunami video
Hat tip to my student Al for passing this on. Thanks Al!
Labels: earthquakes, news, tsunami
Tuesday, March 24, 2009
Boom! tomorrow in DC
Passing on some excitement:
For the filming of a TV pilot, there will be a simulated explosion on Wednesday, March 25 between 9:30 a.m. (tomorrow morning) and noon near Key Bridge in the District.
The explosion will produce a 20 to 30' fireball that will last for approximately 2 minutes.
Please pass along this information to others appropriate. The Department of Homeland Security and D.C. Police and Fire departments have been notified, along with the Washington Airports Authority. The Virginia State Patrol and Arlington Police Department will be contacted. If you have additional questions, contact Kathy Hollinger or Burt Warner with the DC Film Office at 202-727-6608.
The explosion will take place on the Potomac River just north of the Key Bridge and Jack's Boathouse (K / Water Street, NW under the Whitehurst Freeway). In the scene to be filmed, there will be six (6) sculling boats on the Potomac River and one of them blows up. CBS Paramount television is filming a pilot titled "Washington Field." This is a new television series about the elite Washington field office of the FBI and a team of agents with exceptional and diverse skills who are called together for only the most critical cases.
Wednesday, March 11, 2009
Creationists go to the Smithsonian
NBC (snarky!)
Washington Post (with photos)
Labels: evolution, museums, news, smithsonian, teaching
Wednesday, February 25, 2009
Bummer: OCO doesn't make it to orbit
NASA Satellite Fails to Reach Orbit (New York Times)
NASA satellite crashes (Los Angeles Times)
Seven years' work on satellite crashes and burns in 12 minutes (Scotsman)
NASA satellite launch fails (Newsday)
and from NASA themselves, the grim Launch Mishap Ends OCO Mission
What a bummer. All that potential knowledge, snuffed out before we even got a chance to see it.
Labels: climate change, CO2, global warming, news, satellite imagery
Saturday, February 14, 2009
Podcasts make life better
The podcasts and vodcasts (video podcasts) available for free are diverse and awesome, and I'm finding them much more interesting, rich, and deep than traditional radio. I've got music podcasts, science podcasts, story podcasts, and humor podcasts. In the interest of sharing the love, here's what I'm listening to:
All Songs Considered - From NPR, an every-few-days podcast showcasing new and interesting music from a wide variety of genres, often accompanied by insightful commentary from host Bob Boilen and his guests.
Morning Becomes Eclectic - From KCRW in Santa Monica, California, Jason Bentley (no relation) hosts an excellent radio show of... well... eclectic music. The only shows they podcast are the ones where guest artists are performing live in the studio, but that's fine by me -- there's some real gems here. (Although, I'll admit that I miss the former host Nick Harcourt.)
The Moth - An incredible storytelling podcast featuring one person per episode telling a true story, live onstage & without notes. These are incredible tales from our fellow humans: people who have experienced surreal, heartbreaking, or uproarious things, and know how to describe them to others. An absolutely inspired series. Five stars!
Wait, Wait! Don't Tell Me! - The oddly informative NPR news quiz show. Invariably funny, sometimes hilarious. Hosted by Peter Segal, accompanied by luminaries like Carl Kasell, P.J. O'Rourke, and Tom Bodett.
USGS CoreCast - A weekly podcast from the United States Geological Survey, wherein stilted-sounding hosts interview scientists about their work, usually related to some story that's in the current news cycle. Mediocre listenability, but often interesting content.
Nature Podcast - From the acclaimed journal Nature comes this hip, well-produced podcast that features several hosts (male, female, British, American) interviewing scientists about their recent Nature publications and why they matter. Sometimes they give background information, too -- to bring listeners up to speed before the interview. It's detailed enough to be satisfying for a professional scientist, but not stiff or formal. Two thumbs up!
Central Washington University Natural Science seminars - Video of seminars on cool topics like mammoth digs, etc.
American Meteorological Society Climate Change video: Environmental Science seminars - These are a series of science seminars put on by the AMS on Capitol Hill for the benefit of policy makers, captured on video. I often try to attend, but if I miss one, I can get it via the iPod.
The Ricky Gervais podcast - From the talented British comedian comes this sporadic podcast which varies tremendously in content and satisfaction from one episode to the next. When this one is on while I'm driving to campus, the ones that leave me guffawing are the ones where Ricky and Stephen Merchant talk with Carl Pilkington. The three of them have a remarkable style of mutually-insulting comedy.
You can get all of these for free, searching on iTunes. Enjoy!
Labels: environmental, geology, humor, music, news, podcasts and vodcasts, science and society
Friday, February 6, 2009
Magazines

Sierra magazine has a cool feature this month: photos of people and their appliances, showing how much coal it takes to run those appliances for one month. A very clever visual technique, illustrated by the talented photographer Lauren Burke. Click through to read the accompanying article about mountaintop removal, and how most of us support it daily at home by doing things like blogging. Hat tip to Mike Tidwell, who showed us some of these pictures yesterday during his talk at NOVA.
Also, the New Yorker this month has its ~annual piece from John McPhee. This one is about the author's experience with fact-checking. It's an interesting read if you're a fan of McPhee like I am. Eldridge Moores is mentioned -- although if you watched the video I posted a while back, you've already heard that Aegean /Adriatic plate mix-up story.
Labels: art, coal, geologists, geology, news
Wednesday, January 28, 2009
Solar Prius... for the air conditioning
But it's a tease -- the roof's built-in solar panel only powers the A/C. (CNN)
Hey, that means the engine doesn't have to work as hard...
...but it's still a bit of a disappointment, eh?
Labels: energy, environmental, news, prius
Tuesday, January 27, 2009
Jill Biden joins the staff of NOVA
Welcome, Dr. Biden!
Diabase quarries in Loudoun County to become reservoirs
These diabase intrusions are mafic igneous rocks that intruded into the crust during the opening of the Atlantic Ocean. As Pangea broke apart during the Triassic and Jurassic, a huge system of sags opened up in the crust. These low spots were the sites of (a) intense sedimentation, since water flows downhill, and (b) mafic igneous intrusions, since the thinned crust allowed decompression melting of the underlying mantle. (Partial melting of an ultramafic source usually yields a mafic distillate.)
The entire system of failed rift valleys extends along the same trend as the Appalachians, but further east, all the way up to the Bay of Fundy. Collectively, they are called the Newark Supergroup, after one of the larger rift basins in Newark, New Jersey. Dirty sandstones filling that basin were the source of all the 'brown stone' that made the brownstones of New York City. Locally, in our own Culpeper Basin, the main rock that is quarried is diabase, which has a coarser crystal size than basalt, but smaller crystals than a gabbro. It is distinguished by a lot of pyroxene.
Source for the reservoir proposal news: Today's Loudoun Extra, from the Washington Post
Labels: atlantic, culpeper basin, jurassic, minerals, mining, new jersey, new york, news, triassic, virginia, water resources
Monday, January 26, 2009
Environmental news: Monday the 26th
Meanwhile, Virginia's budget shortfall has led to the elimination of pollution inspectors, which means that instead of the usual inspection of 1400 sites in the Commonwealth this year, the reduced staff will likely get to 800 or so. In Maryland, by contrast, the article describes how the governor is actually increasing funding for the oversight of power plants. An interesting contrast from two Democratic governors (one of whom is now moonlighting as the head of the DNC).
PS - My Prius is less efficient in the cold. I've been hovering between 46.5 and 47.0 mpg for the past couple of weeks. Brrr.
Labels: energy, environmental, maryland, news, oil, prius, virginia
Sunday, January 25, 2009
Body found near the Billy Goat Trail!
UPDATE: Same info, but from the Post.
Labels: field trips, maryland, news, piedmont
Sunday, January 18, 2009
D.C. area energy consumption down 2%
One thing I can say about that lattermost factor: this year, 2009, is so far not really of the "mild weather" variety. It's dang cold here!
Saturday, January 17, 2009
Chemists create "RNA World" system
Labels: chemistry, evolution, news, origins of life
Thursday, January 15, 2009
Recommendation: Tamino's "What if...?"
Labels: climate change, global warming, graphics, news
Thursday, January 1, 2009
Younger Dryas Impact Scenario
Labels: anthropology, climate change, critters, diamonds, ice, news, sediment
Wednesday, December 24, 2008
NPR: Quake tourists in China
Labels: china, earthquakes, news, radio
Monday, December 22, 2008
Catch the Buzz

Some geology-oriented terms made the New York Times' annual rundown on buzzwords. It's noteworthy that two of the (non-geological) others on the list (futarchy and edupunk) were coined by Virginia professors.
Saturday, December 20, 2008
Drilling (baby, drilling) for oil in Virginia
Labels: environmental, news, oil, petroleum, politics, virginia
Thursday, December 18, 2008
Giant map of DC
Wednesday, December 17, 2008
More budget cuts for Virginia schools
"In higher education, our October actions reduced schools' 2009 base budgets by 5 to 7%. For 2010, I have increased the reductions to 15% for all schools, except the community colleges and Richard Bland, which will have the reduction level increased to 10%."
Especially in light of what I posted earlier today, this does not bode well.
Full text of the governor's remarks here.
Community colleges feel the squeeze
Tuesday, December 16, 2008
Squid slow down in acid oceans
______________________
Journal reference: DOI: 10.1073/pnas.0806886105
Labels: CO2, critters, mollusks, news, ocean acidfication, oceans
Tuesday, December 9, 2008
Another shout-out for geoblogs in EARTH
To my surprise, the NOVA Geoblog example is the lead for the story, which also interviews Lee, Ron, Kim, and Brian. It mentions some of the results from my survey of the geoblogosphere, including Andrew's analogy of the geoblogosphere's growth being kinda like the Cambrian Explosion, a clever notion which unfortunately the story attributes to me. Sorry Andrew: I did tell them that it was you who said it first!
The story isn't online (yet?) so I can't link to it (yet?), so in the meantime maybe you should re-up your subscription to EARTH.
Tuesday, December 2, 2008
Acorn shortage on NPR
Thursday, November 20, 2008
Friday, October 17, 2008
Friday morning roundup
McCain and Obama having fun: After all the rancor, this makes me happy.
If you're planning on going on the GSW Fall Field trip, let them know ASAP. They need a headcount.
The slate of speakers has been announced for next week's GSW meeting: Leonard Konikow, U.S. Geological Survey, Reston: "Ground-water depletion: National assessment and global implications;" Dionysis Foustoukos, Carnegie Institution of Washington Geophysical Laboratory "Energy sources in dark abyssal waters;" and Igor Puchtel, University of Maryland, College Park "Re-Os isotope systematics and HSE abundances of the 3.5 Ga Schapenburg komatiites, South Africa." 8pm next Wednesday at the Cosmos Club. Free and open to the public; refreshing beverages served starting at 7:30pm.
Virginia's a swing state... unbelievable and amazing.
Radioactive granite countertops cartoon caption contest reminder.
JPL has launched a new climate site:
...And congratulations to Walter Alvarez for being awarded the Vetlesen Prize.
That's all I've got. Have a good Friday!
Thursday, September 25, 2008
Old, old rock

Labels: canada, dc, geologic time, news
Wednesday, September 24, 2008
Climate: Obama vs. McCain
Labels: climate change, news, politics
Wednesday, September 17, 2008
Ike Before and After
Labels: hurricanes, news, texas
Tuesday, September 2, 2008
Absolute craziness
Putin saves TV crew from Siberian tiger
Crazy! Putin guns down a wild tiger! WTF?
Dodged the bullet
Oh well... I'll save the worrying for later. For the moment, I'll be happy that the damage appears to be as light as it was. Of course, with Katrina, it also looked pretty good on the day after, and then the city began filling up with water pouring in past breached levees. I'm going to keep my eye on New Orleans for a while yet.
In the meantime, though, there's a new hurricane en route to the States, and this one may come to my neck of the woods: Hanna. Something new to think about...
Labels: hurricanes, news
Monday, September 1, 2008
The witching hour
Thankfully, the storm's course has kept it cruising along at a pretty good rate of speed, and on a trajectory which keeps the bulk of the bad weather to the southwest of New Orleans. The other good news is it's "only" a Category 3 storm, thanks to it drifting over colder sections of the Gulf (unlike Katrina). This map shows this well.
I've been following the tidal gauges displayed online at NOAA's "Tides and Currents" website, where the tidal gauging stations noted in the map above share their data with you, the web browsing citizen. Consider this graph, from Cedar Key, Florida:
The blue sine wave is the predicted tidal fluctuations based on the position of the moon and sun (tides are caused by gravitational tugs from those massive bodies). But superimposed upon that trend over the past fifteen hours is something making the sea a bit higher than it would otherwise be predicted to be: the red line shows us this observed water level. The green line shows the difference in water level between what's predicted and what's observed. What's causing the extra height to local sea level? This is storm surge, where the howling force of the hurricane's winds push the sea up in front of them. Because of the way hurricanes spiral in the northern hemisphere (counterclockwise, due to the Coriolis effect), these wind-induced storm surges are greatest in the area in front of the storm's path and to the right: the "passenger seat" position as it moves ashore. This is why storm surges were so great in Mississippi during Hurricane Katrina, and New Orleans was spared the worst of it (the eye of the storm passed east of the city then).
Today, the eye of the storm will pass west of the city, which really worried me when I first read the projections, because that put New Orleans in the path of the highest storm surge. The next six hours will be critical on this front. Here's the data from Pilots Station East, Louisiana, which is out on the Mississippi River's Bird's Foot Delta, in prime storm surge position for Gustav's path:
There isn't a lot of tidal variation in this location (low amplitude to the blue line), but you can see that the local water level is leaping upwards, 4 feet above normal at the time I'm writing this. How high will it eventually go? During Katrina, the highest storm surges were somewhere around 27 feet above normal (in Mississippi, not New Orleans). I think this graphic will continue to track the changes over the day, and it may be more updated than my text by the time you read this.
Good luck to everyone on the Gulf Coast. Stay dry.
Labels: hurricanes, news
Saturday, August 30, 2008
Watching weather
Here's a satellite image of the Caribbean from early Friday morning:

Gustav's still moving northwest through the Caribbean, and set to enter the Gulf of Mexico by about midnight tonight, or early tomorrow morning. As you may have heard, everyone's getting ready for the worst-case scenario. Louisiana governor Bobby Jindal has already declared a state of emergency, and President Bush gave him a similar federal declaration. I'll be watching this one pretty closely over the next few days.
Another phenomenon that's manifesting itself over the coming days and weeks is the melting of the Arctic sea ice pack. As Al Gore noted in his speech the other night, the worst case scenario for melting of this sea ice has the Arctic ocean ice free sometime late in the term of the next president (but that's a worst case scenario). Certainly, the trend over time is towards less and less of the Arctic frozen. I follow the fluctuation of sea ice area on the website The Cryosphere Today (University of Illinois), which provides satellite data, graphs, maps, and animations of the areal extent of polar sea ice. Here, for example, is a graph showing the area of the Arctic Ocean covered by sea ice over the past year:

Last year, of course, it hit a record low, and there's still a few weeks to go before it starts freezing up again (mid-to-late September is the time of the minimum). Open Mind did an excellent post examining the trend here, although the pattern is also observable on this long-term graph from Cryosphere Today. Here's another one, from the National Snow and Ice Data Center at the University of Colorado, that gives a half-century of context to the graph above:

In case DC-area folks didn't hear about it, there's also been some recent flooding in the southwest. (Geoblogospheroids will be well aware of it already, thanks to excellent coverage from Lee Allison at Arizona Geology.) I swam in that canyon this summer, just above the confluence with the Colorado River, and so this caught my attention more than an equivalent story would have about flooding someplace I hadn't been.
In addition to these larger-scale phenomena, there's a more local kind of weather I'm watching too: it's actually started raining in DC, for the first time since I got back on August 1! (A perplexed Achenblog on this odd situation). Time to bust out the umbrella.
Labels: hurricanes, ice, news, rain, snow
Thursday, August 28, 2008
"Target Earth" article in National Geographic

The article's a good read, and illustrated with magnificent images, like this classic 1972 image of a fireball over Jackson Lake, Wyoming. That's the Tetons in the background. Check it out.
Grimacing at Gustav
- Kim at All of My Faults Are Stress Related: "Gustav and Uncertainty"
- Michael at Strike Slip: "Why Tropical Storm Gustav Could be a Big Problem"
- Associated Press at NY Times: "Officials may evacuate New Orleans as Gustav nears"
Labels: hurricanes, news
Monday, August 25, 2008
Granite, Uranium, Onion
The Onion's "American Voices" covered a recent issue (see here in the New York Times, for instance) that some people are paying attention to: radiation emitted by granite countertops.Because granite contains some uranium (different levels in different granites), some folks are getting upset that their fancy, expensive granite countertops could actually be emitting radiation into their kitchens. But, as the article points out, it's not really all that much in the grand scheme of things.
One final note: the image used to illustrate the story (shown here) is apparently the exact same variety of garnetiferous granite gneiss that my father recently chose for his countertops, when renovating his kitchen! I'll have to bring the Geiger counter over there next time I visit...
Tuesday, August 19, 2008
Beer is bad for science?
Labels: blogs, news, science and society
Monday, August 18, 2008
Is Georgia in Europe or Asia?
Being a geologist rather than a geographer, I'm of the opinion that it's in Eurasia, but no one's asking me...
Friday, August 15, 2008
Geotimes becomes EARTH
Why? Listen to Pat Leahy give AGI's reasons in a video on Geotimes' website.
I gotta say -- this is a smart move. How many people, browsing the racks at Barnes & Noble, are going to pick up a rag called "Geotimes"? It's a pretty dorky name. On the other hand, how many people are going to pick up a magazine called "EARTH"?
Whoa... Major customer expansion, I'll bet. I'm curious to see how much it takes off.
The magazine is re-inventing itself in several ways, not just switching out the masthead. I noticed in the June issue, they started featuring a crossword puzzle, and next month's issue will be the first to feature my monthly cartoon. It's also going to be longer.
Change isn't just a political word this year...
Sunday, August 3, 2008
Itty-bitty snake
It's from Barbados. Check out more details here.
Friday, May 30, 2008
Recent reads
In the June National Geographic, a study of the geology of Stonehenge reveals the source of the monoliths ("polyliths?") there. They came from the Preseli Mountains of Wales. That's a long journey for such big rocks. Also in the same issue is an eye-popping pictorial piece on sea slugs. You must check it out, because it features dozens of David Doubilet images like this one:

WIRED's cover story this month is about environmental "heresies": ideas that supposedly environmentalists aren't supposed to like, but need to happen. The basic premise is that "only cutting carbon matters," and so they come up with some interesting recommendations like: (1) use A/C more, and heating less, (2) "screw the spotted owl" (don't worry about the loss of biodiversity), and (3) buy a used Geo Metro rather than a new Prius. I found this last of particular interest, as it recounts a web rumor that it took less carbon to make a Hummer than a Prius, and therefore Hummers were more environmentally friendly. (The Prius' battery has a lot of high-carbon-cost nickel in it.) WIRED breaks it all down into BTUs, and runs the numbers. According to their analysis, it takes the Prius 100,000 miles to catch up (i.e. be more carbon-efficient) than an old Toyota. Bummer... Big bummer. (At least the Hummer bit has been debunked.)
As usual, Smithsonian had a bunch of interesting pieces in it. Almost everything in there catches my imagination. It's a very well done magazine.
The New Yorker had a couple of articles, too: In their recent "innovators issue," Alex Ross profiled John Luther Adams, the man responsible for the mesmerizing "the place where you go to listen" in the Museum of the North at the University of Alaska, Fairbanks. If you haven't ever been there and find yourself in Fairbanks, I would recommend this museum highly, and this one room / art installation in particular: it plays certain notes and tones and changes the lighting depending on what the aurora, seismic activity, and other Earth processes are doing. And Margaret Talbot profiled Irene Pepperberg, who raised the parrot Alex and taught him to talk. This article explores the insights into intelligence gained from this serendipitous longterm experiment.
On the commodities front, the New York Times reports today that thieving biofuellers are stealing vegetable oil in Oregon, and that guano stocks are being closely guarded in Peru. Telling quote from the latter: "Before there was oil, there was guano, so of course we fought wars over it," (Pablo Arriola).
Labels: alaska, birdies, environmental, mollusks, news, prius, wales
Sunday, May 11, 2008
Flooding in Myanmar

Labels: asia, floods, hurricanes, news
Saturday, May 10, 2008
Source of the Annandale earthquake?
I pulled out the geologic map of the Annandale quadrangle (1986) by Avery Drake and A. J. Froelich to check for faults in that area. Here's a scan of the map:
You can see our campus in the northwest, and I've highlighted the epicenter of the quake with the red and green concentric circle. Interstate 495, the Capitol Beltway runs north-south through the center of this area. To the south and east of NOVA's campus, you can see that there's a mappable thrust fault (the Red Fox Thrust) which dips to the northwest, presumably under the epicenter and under the campus. However, the map provides no information on the angle of dip of this thrust. Is it steep enough to get to 6km depth a mere ~3km north of its surface trace? (The map's cross section shows it dipping at about 52 degrees, but that's pretty speculative.) Or if the dip is shallow, is there a deeper (perhaps parallel) thrust underneath it? (There is none shown within the map area, though there is one to the north of campus that dips to the north -- making it unlikely to be the culprit.) Alternatively, was Monday's quake caused by a new fault? Perhaps a normal fault which cross-cuts these Paleozoic thrusts?
No new answers -- only more questions...
Labels: earthquakes, news, nova
Wednesday, May 7, 2008
Chaiten update

Holy cow! Chaiten is continuing to erupt, and witnesses are posting some incredible photographs of the event.
I highly recommend you check out these two sites, which I am only aware of thanks to James Annan who posted the links at his Empty Blog.
Seriously: check them out. It's like Independence Day down there.
Labels: news, south america, volcano
Saturday, April 19, 2008
What should a monthly geology cartoon look like?
Geotimes managing editor Meg Sever and I have discussed a couple of possibilities: probably it will be vary in size and form: sometimes it will be a three panel strip, sometimes it will be a single panel (like The Far Side). The goal is less to be humorous (though that's always a bonus) and more to explain. In fact, Meg initially got the idea from an odd project I did for my senior "thesis" at William & Mary: The Cartoon Guide to Geology (1996). That was peppered liberally with bad jokes, but the primary goal wasn't to be funny -- it was to explain geology through a cartoon medium.
I bring this up now to seek the good advice of the geoblogosphere. Especially those of you who are Geotimes subscribers: what topics do you want me to cartoon about each month?
Also: what's a catchy title for a monthly geology cartoon? Any advice you have would be welcome!
Thursday, February 28, 2008
Mercury dresses as a comet
So, this is weird: a new insight into the planet Mercury is that it has a big long tail which extends away from the planet, strung outwards by the solar wind (a stream of charged particles shooting away from the Sun in every direction). Comet tails are also due to the solar wind's erosive effect, vaporizing particles & dragging them "down-stream" (i.e., away from the Sun). The tail is long: At 1.6-million miles in length, the streamer of sodium atoms is more than 100 times the planet's radius. Read more here.Labels: news, planetary geology
Wednesday, February 20, 2008
Only a theory
Friday, February 15, 2008
Shooting at NIU geology class
NIU's website with updates.
More from The Washington Post.
More from CNN.








