Nate,
Yes, I agree that the waves carrying rocks and sand smooth the surface of the rock. Initial forms were probably created by glacialization. Basalt is suppose to be much softer than granite, but may be protected by the granite. Then there are different granites! The first picture is of two different granites photographed at Grindstone Neck. The other two are from Pemaquid Point, and illustrate the layering of granites and basalt with an uplift and tilt (the rock folds were actually vertical). Did you live in the area? I worked at the JAX for 3 years in the late '70s, and return every now and then.
Attachment 127819Attachment 127820Attachment 127821
Mike
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