Anticline Outcrop

July 16, 2018

 

The rocks in this area belong to the New Scotland Formation and are composed of a fossiliferous shaley limestone. In this area of the trail, the rocks form steep ridge-like features. Bedding (primary sedimentary layering) and cleavage (secondary layering caused by deformation) are well developed and indicate that the outcrops are on the eastern limb of a large anticline (upward bending fold). The bedding is inclined (dipping) to the east, and the cleavage is near vertical. The steep ridge-like aspect is due to weathering along cleavage planes or parallel joints. Although the outcrops are separated, they are all a part of the same bedrock. If you look closely at these rocks, there are abundant brachiopod fossils

 

 

 

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