Thursday, June 21, 2018

Chattering, below and above, then and now

When as glacier drags a stone across bedrock, that stone can dig in and slip, dig in and slip. This leaves distinctive marks on the bedrock. A cropped picture from that link:

If we could hear these stone slipping, and time were compressed, I presume, the stones would chatter. At Georgian Bay National Park, I saw such chatter marks.

And then two days later, I saw the same marks in an unlikely place:

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