22 July 2016

Friday fold: The walls of Scalloway Castle

Posted by Callan

When in Shetland, one of my first stops was the museum in Scalloway, and one of the ancillary benefits of visiting there is the castle next door:

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Scalloway Castle includes building stones derived from the local limestone – a Neoproterozoic unit that has recently been chemostratigraphically correlated with Snowball Earth cap carbonates elsewhere in the world. But that need not concern us today. Today we are here for the folds!

Check out these fine examples:

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There are also some adjoining examples of boudinage:

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(Zooming  in on a boudin neck from the previous example…)

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Hope you’re having a happy Friday!