For some time now, I have been trying to find a good image that would match what I saw in the text books in college showing metallic yield when forces were applied to a metallic test specimen. Those images showed what the crust looks like around the northern regions of our planet. It is not the same in the southern regions of this orb - but definitely in the north where a portion of the earth was yielded away from the main body of the planet.
This image shows more of a crack nucleation site on a microscopic scale, so it is not the same thing - but interesting nonetheless:
http://www.fei.com/image-gallery/bending-test/
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