Glacial Erratics

July 18, 2018

The rocks in this area belong to the New Scotland Formation consisting of a fossiliferous shaley limestone: the same formation as the anticline outcrop. At this location, bedding and cleavage are also well exposed, however, their orientation is different from the anticline outcrop. More specifically, the cleavage here is close to horizontal rather than vertical which indicates they have been rotated and reoriented. This is consistent with the explanation that these rocks are glacial erratics. These rocks have been moved south a short distance from their original location by a glacier.

 

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