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30 September 2011
Straight-limbed open synform in an organic-rich formation of limited areal extent, featuring some brittle extensional features at the hinge. Kootenay National Park, British Columbia, summer 2011. (The bridge was broken before we got there.)
28 September 2011
Northern Colorado’s route 287 connects Fort Collins, Colorado with Laramie, Wyoming. Along its length, it displays roadcuts into Archean-aged basement complex. Two of these outcrops are featured in this post: one metamorphic (mostly), and a second igneous (mostly), with some intriguing polka-dotted plutons.
20 June 2011
The current edition of the Accretionary Wedge geology blog carnival (hosted by Evelyn Mervine of Georneys) is built around the theme of favorite geology words. My favorite geology word is derived from the French boudin, for sausage. It’s “boudinage,” and it’s best said with a heavy French accent and a leering, dirty expression. “Boo-din-ahhdj” I love pronouncing it; it’s a delicious word, like a good boudin itself. So what is …
23 May 2011
This morning, my cat Lola (a.k.a. “LOLa”) had squirmed herself in between the sheets, and it reminded me of something: If this pose inspires you to another LOLcat caption, you can click through for the original image file, unadorned. Modify it as you like, and give us a link to your creation in the comments on this post! Have fun.
20 May 2011
Dana posted early this morning with an invitation to “LOLcat” with a geological flavor. Here’s the best I could come up with: If you’re not familiar with the LOLcat genre, you might want to take a look at a random sampling of LOLcat images for context. Yes: I have the day off today, and can indulge in silliness like this!
20 April 2011
My friend JT, who got her MS in geology at the University of Maryland when I did, is now at the Colorado School of Mines working on her PhD in Environmental Science and Engineering. A water main broke outside her house this morning, and I’m pleased that her first thought was to photo-document the resulting sedimentary structures for me. She says: “14 inch water main broke and there was a …
9 April 2011
Here’s a joint extracted from gelatin during this year’s GMU structural geology “Make a Joint” exercise: A soda bottle full of congealed gelatin serves a “rock.” We then use construction clamps to impart a stress field to the gelatin bottle. Into it, we inject fluid plaster of Paris. The extra pore fluid pressure causes a joint to form, displaying all the characteristic anatomy. Here’s the other side: Here are some …
5 March 2011
Took a hike this morning with my bride-to-be, out to Buzzard Rock on the northeastern corner of Massanutten Mountain. There, we observed numerous boulders of Massanutten Sandstone float, many bearing charismatic cross-beds. Here’s one more slab of float, presumably weathered out along the main bed, showing gorgeous internal cross-stratification: A closer look at the left side of this sample, animated via GIF: Why animated? Because I can. The object of …
31 January 2011
The 30th edition of the “Accretionary Wedge” blog carnival is hosted at Mountain Beltway. A delectable array of foods, mainly dessert, are displayed. The treats demonstrate a wide array of geologic processes. Eat, drink, and be geologic!