| | Journal (article/letter/editorial) | granitic post-collisional Tin Zebane dyke swarm žPan-African Tuareg shield, Algeria /: prevalent mantle signature...December 1997; accepted 30 June 1998 Abstract The Tin Zebane dyke swarm was emplaced at the end of the Pan-African...remobilized at the end of the Precambrian. The Tin Zebane swarm was emplaced during post-collisional sinistral...contamination occurred in the genesis of the Tin Zebane swarm. Even the samples showing evidence of fluid...differentiation effects due to late cumulates comprising aegirine, zircon, titanite, allanite and possibly fergusonite | | | Journal (article/letter/editorial) | 0.3 wt % Nb, 0.5 wt % total REE) are found in aegirine-albite aplites that formed around arfvedsonite...ppm). The REE, Zr, and Nb compositions of the aegirine-albite aplites plot along the same linear enrichment...values. The chemical and textural features of the aegirine-albite aplites are compatible with an origin by...of sodic amphibole (arfvedsonite) and pyroxene (aegirine) and by highly variable facies FIG. 1. Geologic...hematitization in the central part and occurrence of aegirine-albite aplites associated with peralkaline pegmatite |
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