Saturday, April 26, 2014

Geo 730: April 26, Day 482: Faulty Pillows?

A final shot of the pillows at Depoe Bay, to the right of yesterday's photo. There's some overlap; a few of the pillows on the left of this picture are easily matched to the same ones in yesterday's. The distinctive aspect of this photo is what appears to be a minor fault running roughly vertically through the middle. This is a spot that's not practical to get at in person. We're looking down at it from maybe 10-15 feet away, so one can't get a good look at the fracture to say for sure it's a fault- you'd want to see clear offset or slickensides, which I can't say for certain that I do. However, there's a pillow right near the bottom that seems to be broken. Still, it's not clear enough to me to say with any real confidence that this is a fault rather than a joint. Either way, it's expression has been enhanced by wave erosion.

Photo unmodified. July 10, 2012. FlashEarth location.

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