Fil:Augen gneiss 2.jpg
Fuld opløsning (3.008 × 2.000 billedpunkter, filstørrelse: 5,81 MB, MIME-type: image/jpeg)
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Denne fil er fra Wikimedia Commons. Beskrivelsen af filen fra Commons er gengivet nedenfor. |
Beskrivelse
| Beskrivelse |
English: (CMNH 12375, Cleveland Museum of Natural History, Cleveland, Ohio, USA)
Gneiss is a high-grade, foliated metamorphic rock. It forms principally by metamorphism of schist, granite, or granite-like rocks. The foliation in gneiss is obvious and consists of alternating bands of light and dark minerals. The light-colored component is usually quartz (SiO2). Notice the discrete, elongated to ellipsoidal masses of light-colored material in this specimen. Gneiss having such mineral masses is called "augen gneiss" ("augen" is German for "eyes"). Locality: unrecorded/undisclosed |
| Dato | |
| Kilde | https://www.flickr.com/photos/47445767@N05/49158549721/ |
| Forfatter | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/49158549721 (archive). It was reviewed on 10. marts 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Dato/tid | Miniaturebillede | Dimensioner | Bruger | Kommentar | |
|---|---|---|---|---|---|
| nuværende | 10. mar. 2020, 03:57 | | 3.008 × 2.000 (5,81 MB) | Ser Amantio di Nicolao | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/49158549721/ with UploadWizard |
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