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Showing results for tags 'raindrop'.
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This dolomite stone was discovered near Chasm Creek, central Arizona. It appears to have the fossilized impressions of raindrops splashing into a fine muddy surface. The stone seems to be dolomitic, as HCl causes a low fizz, unlike typical limestone's more energetic fizzing. Most of the "splashes" have the central "rebound" splash seen in my high-speed imagery of water droplets. That central rebound appears to have been broken off over time. Does my assumption that this is a somehow frozen-in-time rain shower make sense?
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I just split a Triassic shale piece from Thurmont, Maryland and I found these weird twin dots. Raindrop impressions are known from this formation but they are next to each other, any Ideas?