File:Breccia (Shatter Zone, Late Devonian; Sand Beach, Mt. Desert Island, Maine, USA) 19.jpg
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English: In the Acadia National Park area of coastal Maine, a band of breccia called the "Shatter Zone" occurs around the Cadillac Mountain Granite, a large mid-Paleozoic pluton. The breccia formed in the subsurface during a caldera-forming event that followed a large explosive volcanic eruption (see Braun, 2016). The granite pluton itself is the remains of the cooled magma chamber beneath that ancient volcanic center.
Locality: outcrop at eastern end of Sand Beach, Mt. Desert Island, coastal Maine, USA (44° 19' 43.59" North latitude, 68° 10' 48.57" West longitude) Reference cited: Braun (2016) - The Shatter Zone: a physical borderland from 420 million years ago to present and conceptual borderland from 1837 to present. Chebacco 17: 45-58. (mdihistory.org/wp-content/uploads/The-Shatter-Zone_Duane-...) |
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| Source | https://www.flickr.com/photos/47445767@N05/50024478423/ |
| Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/50024478423. It was reviewed on 25 August 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 06:11, 25 August 2020 | | 3,008 × 2,000 (6.18 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/50024478423/ with UploadWizard |
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