"Christoph Hormann" <Chr### [at] schunteretctu-bsde> wrote :
>
> Have you ever looked at a mountain region from above: most mountains have
quite
> plane sides and very sharp ridges.

    Some mountains look sharp because they have been recently pushed up.
Even old mountains look that way if they are still being pushed up. But old
mountains in areas with no recent plate activity are rounded by erosion.
Your photo is clearly one of an upthrust formation of some sort. In a
billion years it will be a rounded boulder.

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