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Those patches that you can see drifting down the Rock River are a skin of freshly formed ice, and they contain bits of sediment from the river bottom. If I remember my high school chemistry correctly (no guarantees), water reaches its maximum density at about 2 deg C (36 deg F), and becomes about 10% less dense when it undergoes the state transition to become ice. It freezes at 0 C (32 F), and the extra 2 C is lost due to the energy consumed by the state transition. Therefore, that skin of ice contains unlovely yellow-green traces of whatever was on the bottom of the river when it froze. That's my theory. Anyone care to correct me?
Winter arrives in Wisconsin. It's about ten days early if you go by the calendar. So much for nice days and pretty autumn colors...
Well, as the title implies, this one is more about the defects than the scene. I just thought it was interesting and sort of pretty with all the lens flares and chromatics going on.
