2020—What’s The Point?

Pemaquid Point juts out into the ocean holding the Pemaquid Point lighthouse. But just what is the point? The point is a geological formation of metamorphic rocks, distributed in very thin stratified layers. The layers are composed of different minerals; some have quartz, feldspar, and biotite and others have diopside, pale quartz, and feldspar resulting in layers of different colors. Originally these ocean floor layers of sediment were arranged horizontally with one layer on top of the other, but through the metamorphosis of the rock in the earth’s crust, the layers were contorted, solidifying in nearly vertical orientations, making the edges of the layers the plane that people walk on to get this view of the Pemaquid Point Lighthouse.

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