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Ice Disk That phenomenon is called an ice disc or ice circle. It occurs in slow moving water in cold climates. Ice discs form on the outer bends in a river where the accelerating water creat...
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#1: Attribution notice removed
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System
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2020-10-27T17:18:45Z (about 4 years ago)
Source: https://outdoors.stackexchange.com/a/14859 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/