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You are browsing the archive for August 2017 - Mountain Beltway.

31 August 2017

Geology Underfoot in Southern Idaho, by Shawn Willsey

I love the “Geology Underfoot” series published by Mountain Press – the same folks who have published dozens of titles under the “Roadside Geology” theme. “Underfoot” is better than “Roadside,” I think, because it tells the story of discrete places, suggesting ideal places to visit. Each chapter is self-contained and useful without extraneous details, and avoids the redundancy of many roads crossing through near-identical geology. The latest title in the …

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25 August 2017

Friday fold: Villa Romana di Casale

Okay, I’ll admit this is a bit of a stretch, but here’s your Friday fold: The mosaic-covered floor of this long hallway in the Villa Romana di Casale in central Sicily shows profound warping. The middle shadowed area sags downward by at least a meter, maybe more. It’s not a geological material that’s been deformed, but an architectural element instead. Still: the principle of original horizontality applies to floors as …

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18 August 2017

Friday folds: the Roman Forum

When in Rome, do Friday folds as the Romans do? Here are some images from my brief, sweltering visit to the Roman Forum(s) this past summer. The whole region is a jumblepile of ancient ruins in a thousand styles. Almost nothing is labeled. It looks like this: This particular building held up a bit better, and its lovely columns sported some folded marbles: Close-up shots to show the folding internal …

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11 August 2017

Friday fold: Eagle Rock

For the Friday fold, Callan digs out images of Eagle Rock, Virginia, well aged in his digital archive for a decade!

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9 August 2017

A suite of new 3D models

A showcase of five new 3D digital models of awesome rock samples and outcrops, produced using Agisoft Photoscan.

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4 August 2017

Friday fold trio: Samples from UNM, ABQ

It’s Friday and that means “fold time” here at Mountain Beltway. Today, we feature a trio of samples on display in the halls of the Department of Earth and Planetary Sciences at the University of New Mexico.

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