The purpose of this forum is to help people identify things they've seen while out hiking: wildflowers, trees, birds, insects, small animals, animal tracks, even geographical features like buttes or streams
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That's about as plausible as my Moses theory.Bigfeets?
I like this better than the Bigfeets theory.Post-freeze earthquake?
That sort of thing happens all the time in puddles and micro ponds, but doesn't look anything like this.I'm guessing that the water level in the pond dropped after the top froze, leaving this bit high and dry.
Not as crazy as it sounds; I've seen similar penomenon. But I've always seen that result in a choppy broken surface.I hypothesize that wind blew this slab up onto the shore a bit.
My first thought was an ice dam formed, and then additional water entering the lake caused some water to spill over the edges of the ice and build up. But no, that doesn't make sense. The additional water would extend the perimeter of the pond, but wouldn't effect the edge configuration.
I observed a heavy accumulation of needle ice all around the pond. Could it have also formed under the pond ice, jacking up the pond ice, and filling in around the perimeter, giving the appearance of a thick abruptly-edged ice sheet?
Second vote for wind. I'm going to bet that several days of consistent direction wind pushed free lake water onto a thin slab of frozen lake water, one thin sheet of water at a time, building it up layer by layer. Word of caution: I'm a musician, not a scientist.