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Walked to the pond this morning. Very solidly frozen. The dam waterfall was extraordinary with fantastical ice formations. What do you see? Mushrooms? Coral? Flowstone? A lobster tail? Cracked open geode?
See #AltText for better descriptions.
Anyone understand #Ice formation?
What is this!? Where the water emerges from the dam and flows across the rock wall, it has formed a clear ice structure that looks like a segmented carapace of an arthropod. There are three of these large, about a meter, curved structures. One has formed against the rock dam wall. A second is lower and has formed over a large rock that fell from the wall and leans against it. And the third is across from the later and curved away from the dam. Each “segment” in the larger structure is about 8-10 cm tall and nestles into the segment below it, which sticks out beyond. They are weird and wonderful and ephemeral and I’d love to understand how they form. Some kind of freeze thaw with gravity process and water coming from above?
Looking down from the top of the dam into the ice pile formed from the flowing water. While the outer surface of the ice is smooth and slightly yellowish, the inner part where the water splatters is a delicate crystal matrix. It looks like a cut open geode. The wet rocks of the stream bed are seen through this crystal lined opening.
Side view of the dam from above. The north wall of the dam stretches into the forest and you can see a little of the pond through the gap where the stream has eroded the wall. Below this, the flowing water has created a luminous pile of lumpy ice.
The dam waterfall viewed from a small bridge downstream. The dam is made of stacked dry stone but is falling apart at the point the water flows over. Streams of water are emerging through the stones to create the stream. It has been very cold for about a week so the water coming through the dam has frozen into a large lumpy smooth pile with a yellowish cast due to tannin in the water. It looks like a clump of just emerging mushrooms or coral. Beyond the dam is blue sky and forest and some bare trees are growing from the dam wall.
#ice #alttext
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