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Summary
| Description |
Graphic granite from the Precambrian of Russia’s Kola Peninsula. Geologic unit & age - apparently from a Paleoproterozoic granite pegmatite intrusion, Belomorian Terrane (Kola Province), Baltic Shield (Fennoscandian Shield). Locality: Enskoye, east of Kovdor, ~257 km west of the town of Apatity in the southwestern Kola Peninsula of far-northwestern Russia. Graphic granite (a.k.a. runic granite; a.k.a. runite) has an odd but distinctive type of crystalline texture. Graphic granites are typically bimineralic (K-feldspar & quartz) and consists of interpenetrating crystals (quartz in K-feldspar), in a way that somewhat resembles ancient cuneiform writing (“graphic”). Some observed examples resemble Arabic writing. These rocks occur in pegmatitic granite intrusions. |
| Date | |
| Source | Graphic granite (runite) (Paleoproterozoic intrusion in the Belomorian Terrane of the Baltic Shield; Enskoye area, east of Kovdor, southwestern Kola Peninsula, far-nw Russia) 3 |
| Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/14816086227. It was reviewed on 23 August 2014 by FlickreviewR 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 | 00:32, 23 August 2014 | | 2,999 × 2,249 (456 KB) | Tillman | Transferred from Flickr via Flickr2commons |
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