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You are browsing the archive for 14 April 2010 - Mountain Beltway.

14 April 2010

Using bedding / cleavage to detect overturned beds

One of my students wrote to me this morning with a question about the relationship between bedding, cleavage, and folding. He asked: I am not sure how we use the relationship between bedding and cleavage to interpret fold limbs.  It seems if bedding is near vertical and cleavage is closer to horizontal, this would be an upright fold limb.  To be overturned, wouldn’t the bedding need to be closer to …

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Photos from Eyjafjallajökull

My friend Barry R., now residing in PostDocVille, Denmark, took a trip to Iceland last week to check out the eruption of Eyjafjallajökull. Unfortunately, by the time he got to the volcano, it was no longer spouting lava, but the scene is dramatic regardless. You can sample some of his photos below, or see the whole album on Facebook. Waterfall: Glacial terminus and moraine: Ash on ice (steam rising beyond …

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