Fitxategi:Eudialytic metasyenite Temiscamingue County, sw Quebec.JPG
Bereizmen handikoa ((1.354 × 1.027 pixel, fitxategiaren tamaina: 263 KB, MIME mota: image/jpeg))
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Fitxategi hau Wikimedia Commonsekoa da. Hango deskribapen orriko informazioa behean duzu. |
| Deskribapena |
Eudialytic metasyenite (6.8 cm across) from the Precambrian of Quebec, Canada. Eudialyte is an attractive, rare, pinkish-red silicate mineral having a moderately complex chemistry. Eudialyte is a sodium-calcium-cesium-iron-manganese-yttrium-zirconium hydroxychlorosilicate (Na4(Ca,Ce)2(Fe,Mn,Y)ZrSi8O22(OH,Cl)2). The rock shown here has a significant eudialyte component, along with sodic plagioclase feldspar (white) and arfvedsonite amphibole (black). It is a eudialytic peralkaline syenite (or metasyenite, as the rocks on the outcrop scale have a weakly developed, coarse-scale foliation). Locality - apparently the “rare-earth occurrence” locality of Currie & Van Breemen (1996 - Canadian Mineralogist 34: 435-451) and Currie (1998 - Geological Survey of Canada Current Research 1998-C: 167-172), near the Kipawa River between Lake Sheffield and Lake Sairs, Villedieu Township, south-central Témiscamingué County, southwestern Quebec, southeastern Canada. Geologic origin - published information indicates that the eudialyte is metasomatic in origin (= formed by the significant addition of chemicals to pre-existing rocks), and dates to about 994 million years (late Mesoproterozoic). The host syenite rock is mid-Mesoproterozoic in age (~1.24 billion years). It forms part of the Kipawa Syenite Complex in the Kipawa Syncline area of the Grenville Province, near the Grenville Province-Superior Province boundary. |
| Data | |
| Jatorria | Eudialytic metasyenite (Kipawa Syenite Complex, Mesoproterozoic, 994 Ma; near the Kipawa River, Villedieu Township, Temiscamingue County, sw Quebec, Canada) 1 |
| Egilea | James St. John |
Lizentzia
- Askea zara:
- partekatzeko – lana kopiatzeko, banatzeko eta bidaltzeko
- birnahasteko – lana moldatzeko
- Ondorengo baldintzen pean:
- eskuduntza – Egiletza behar bezala aitortu behar duzu, lizentzia ikusteko esteka gehitu, eta ea aldaketak egin diren aipatu. Era egokian egin behar duzu hori guztia, baina inola ere ez egileak zure lana edo zure erabilera babesten duela irudikatuz.
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/15002798925. It was reviewed on 2014ko abuztuaren 23a by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
Fitxategiaren historia
Data/orduan klik egin fitxategiak orduan zuen itxura ikusteko.
| Data/Ordua | Iruditxoa | Neurriak | Erabiltzailea | Iruzkina | |
|---|---|---|---|---|---|
| oraingoa | 01:58, 23 abuztua 2014 | | 1.354 × 1.027 (263 KB) | Tillman | Transferred from Flickr via Flickr2commons |
Irudira dakarten loturak
Hurrengo orrialdeek dute fitxategi honetarako lotura:
