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Phenomena

@ngssphenomena

A companion account created to share all things phenomena! Tweet here to add things to the collection for #NGSS curated by @tjscience

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linkhttp://www.ngssphenomena.com calendar_today04-11-2016 18:31:33

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@ngssphenomena

3 years ago

It’s estimated that this ladder was laid on the limestone around 150 years ago. When it rained, it dissolved the carbonate compounds contained in limestone & soaked the ladder in calcium and magnesium ions. Over time, the minerals solidified and petrified the ladder's surface.

It’s estimated that this ladder was laid on the limestone around 150 years ago. When it rained, it dissolved the carbonate compounds contained in limestone & soaked the ladder in calcium and magnesium ions. Over time, the minerals solidified and petrified the ladder's surface.