One of my favorite collections of photographs is Eliot Porter’s “Nature’s Chaos” and I think there may some chaos at play with these icicles. It would certainly be interesting to watch these shapes develop…but I’m not all that fond of the cold and it would take quite a while to see them grow. I’ll settle for the mature subjects. 🙂
Here are two images with very different shapes. Please click to see a larger image.
My friend Cherrie Corey mentioned drip and swirl which certainly sounds like a good description of what’s going on here.