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May 1, 2018 at 20:12 history edited bon CC BY-SA 3.0
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May 1, 2018 at 14:45 comment added bon Also the one's in the background look very much like terraces. I'm not suggesting they are caused by changes in hardness, only some of the smaller ones in the foreground.
May 1, 2018 at 12:44 comment added bon @JeopardyTempest Changes in hardness would likely be caused by changes in cementation so I don't think it's implausible.
May 1, 2018 at 9:20 comment added JeopardyTempest You're suggesting there are really that many separate abrupt shifts in hardness to create each different level of "step"?
May 1, 2018 at 7:32 history answered bon CC BY-SA 3.0