File:L-tectonite gneiss (Precambrian; Uxbridge, Massachusetts, USA) 1 - 53324040714.jpg
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| Description |
English: L-tectonite gneiss from the Precambrian of Massachusetts, USA.
Gneiss is a high-grade, foliated metamorphic rock consisting of alternating bands of light and dark minerals. This example has blackish biotite mica and light-colored feldspar and quartz. The rock is actually a L-tectonite gneiss - it has been subjected to tectonic stretching. This surface is equivalent to "B" in this diagram: www.flickr.com/photos/jsjgeology/16940463771 The front view of this specimen is at: www.flickr.com/photos/jsjgeology/53330994399 Locality: unrecorded / undisclosed site at or near the town of Uxbridge, southern Massachusetts, USA |
| Date | |
| Source | https://www.flickr.com/photos/47445767@N05/53324040714/ |
| Author | James St. John |
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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/53324040714. It was reviewed on 28 November 2023 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 | |
|---|---|---|---|---|---|
| current | 21:13, 28 November 2023 | | 2,672 × 2,311 (5.01 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/53324040714/ with UploadWizard |
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