Callan Bentley

Five new GigaPans from Thoroughfare Gap

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Yesterday, I took five new GigaPans at Thoroughfare Gap, a water gap where Broad Run cuts through Bull Run Mountain, the eastern limb of the Blue Ridge Anticlinorium at my latitude. The rocks here are the Cambrian-aged Chilhowee Group, with bedding tilted moderately to the east during Alleghanian mountain-building in the late Paleozoic. To the … Read more

Monday macrobug: Jumping spider

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While the Monday Macrobug continues its official winter hiatus, we did have a fuzzy little jumping spider make an appearance in the house the other day: Did you see the @$#%ing ladybug hiding there in the background? Here’s a closer look at the spider: Jumping spiders are my favorite spiders – they seem like little … Read more

Snow day aftermath

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So we ended up getting 13 or 14 inches of snow yesterday. It was wet, and the temperature was right around freezing. As soon as it stopped falling, it started melting. One interesting aspect of this is that big wads of slushy snow were plopping off the trees every time a gust of wind came … Read more

Snow day II

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There’s something so awesome about a heavy snowfall, so transformative – it really inspires me. I went out skiing this morning, and I’ve never seen our house looking more beautiful. The snow is about 11 inches deep so far: It’s a wet, heavy snow. Temperatures are hovering right around 32°F (0°C), so it’s sticking to … Read more

Documenting doomed outcrops: Scientists’ Cliffs, Maryland

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The community of Scientists’ Cliffs in Maryland is a private community that happens to sit on some of the most amazing fossil exposures in the Coastal Plain. The strata in question are part of the Miocene-aged (~14 Ma) Calvert Formation. The Scientists’ Cliffs outcrops are better than the more famous outcrops at Calvert Cliffs State … Read more

AW#55: Geo-injuries

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The Accretionary Wedge is a ~monthly geoblog “carnival” which elicits posts on a variety of themes. This month, it’s Maitri’s turn, and she wants to hear about our geo-injuries. Here’s my story: In 2003, I was doing field work in the high Sierra, mapping the Sierra Crest Shear Zone for my geology master’s degree. When … Read more

Using M.A.G.I.C. to zoom in on trace fossils

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Yesterday, I worked on my sabbatical project, the Mid-Atlantic Geo-Image Collection (M.A.G.I.C.). Whether I go outside on a given day to shoot GigaPans of local geology depends on multiple factors: (a) How’s the weather? (b) Do I have to watch Baxter? (c) Can I bring Baxter with me? (d) How are the lighting conditions? Yesterday … Read more

Monday macrobug: Hercules

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Eastern Hercules Beetle, Dynastes tityus. Dessicated sample, collected at the 7-11 on the corner of route 55 and route 522 north of Front Royal, Virginia. Collected by one of my wife’s students (she’s a science teacher). I like the shadow of the horns in this one: Monday macrobug is officially on winter hiatus. We’ll resume … Read more

Strained stylolites in Elkton East

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Whoa – look at all that GREEN. You can tell this Virginia picture wasn’t taken recently. In fact, it’s another image from the field review I participated in for the Elkton East quadrangle back in May of last year. Somehow I start blogging these things, but run out of steam (or really more accurately: I … Read more

Flight Behavior, by Barbara Kingsolver

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I finished reading Barbara Kingsolver’s new novel Flight Behavior over the weekend. It’s certainly cut from the same cloth as Kingsolver’s other work. If you liked Prodigal Summer and her many Arizona novels, you’ll probably like this one, too. Similarities include: beautiful writing, a focus on the relationships women have to their families, friends, and … Read more

Friday fold: clear evidence of the work of the Intelligent Folder

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Yesterday’s post showcasing my conversational critique of Intelligent Design got a lot of attention, including tweet love from @NCSE and @BadAstronomer, and a blog post at Pharyngula. So, at the risk of overkill, I decided to have a little fun with the Friday fold… Check out this fold that I found in float of Purcell … Read more

The Discovery Institute feels sorry for my students

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Periodically, I get requests to use my images in publications. It’s very easy to find my photos, because I publish a lot of them on this blog, or on my NOVA website, and they always rise to the top of a Google image search. I got a distinctive one on Monday: Dear Mr. Bentley, My boss … Read more