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http://hdl.handle.net/2122/7618| Authors: | KAHOUI, Mohammed* DELLA VENTURA, Giancarlo* MAHDJOUB, Yamina* BELLATRECCIA, Fabio* Cavallo, Andrea* LOUNI, Chahira* |
Title: | TH, U, REE MINERALS IN THE GARA ADJEMAMAYE PERALKALINE GRANITE (CENTRAL HOGGAR, ALGERIA) | Issue Date: | 2011 | Keywords: | Th, U, REE peralkaline granite |
Subject Classification: | 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology | Abstract: | The Gara Adjemamaye peralkaline granite outcrops in the Egere-Aleksod terrane (central Hoggar). The main facies is a grey to cream heterogranular rock composed of quartz, mesoperthite, sodi-calcic amphibole, sodic pyroxene, annitic biotite, opaques, Fe-Ti oxides, zircon and abundant (Th, U, REE) bearing minerals. The latter are often finely dispersed in veins crossing the rock, suggesting crystallization due to extensive late-stage remobilization. This work represents a contribution to the crystal-chemistry of these rare minerals and the metasomatic mobility of incompatible elements such as Ti, Zr and REE in igneous environments. |
| Appears in Collections: | Conference materials |
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| POSTER TLEMCEN 2010_GDV.ppt | 2.81 MB | Microsoft Powerpoint |
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