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20 August 2022

Two erratics from coastal Maine

Happy Saturday! Here are two erratics (glacially transported boulders) that I saw last week in coastal Maine. This one shows prominent subparallel striations: And this one, in the town of Penobscot, next to the greasy spoon called Bagaduce Lunch, shows aligned feldspars that suggest magmatic flow: Nothing like a good erratic to get the weekend started off right!


16 August 2022

Kinked metavolcanics of the Castine Formation, eastern Maine

Callan shares a few outcrops from coastal Maine, part of the Avalonia terrane that accreted to ancestral North America during the Acadian Orogeny. They are volcaniclastic rocks, coarse and fine, and showing both overprinting kink bands and cross-cutting basaltic dikes.


18 November 2015

Beach sand of coastal Maine

You could use a macro GigaPan of some pretty sand, I think. [gigapan id=”181069″] Link That’s sand from near Acadia National Park, in Maine. Exploring it, you can find both small chunks of Acadian granite, and green rods that are sea urchin spines. It’s fun – check it out.


2 January 2015

Friday folds: Cabbage Island, Maine

Devonian metamorphic rocks (garnet-bearing gneiss) exposed on the western side of Cabbage Island, Maine: And here it is in GigaPan form: [gigapan id=”157674″] link


25 June 2014

Pemaquid Point, Maine

Pemaquid Point, Maine, is a locally-owned and -managed park near an old lighthouse. I went there yesterday with my family. We’re on vacation in coastal Maine for a week. At Pemaquid Point, the action of waves have cleaned the rocks, and they offer a delightful three-dimensional look at Acadian-aged metamorphics and granite pegmatite dikes, with a fair amount of structural geology superimposed on the whole lot. Learn more about the …


20 August 2012

Monday Geology Picture(s): Maine Geology Extravaganza!

Adam and Kelly, my friends from college, recently (back in June) were married. For their honeymoon Adam and Kelly went to Maine. Adam was kind enough to send me some geology-themed pictures from their honeymoon, and I thought I’d share them here on Georneys. These pictures are from Owl’s Head State Park and Acadia National Park. I’ve provided a few notes about the photos, but please feel free to leave …