Withiin Plate Granite Geochemistry

That it is a type granite which formed in within plate granite tectonic set up.

Withiin plate granite geochemistry. Ancient mine pale green emerald anorogenic. The keivy peralkaline granite complex consists of 2650 2660 ma peralkaline granites 2670 ma syenogranites and 2680 ma alkaline syenites. The fe number or fe distinguishes ferroan granitoids which manifest strong iron. Neues jahrbuch für mineralogie abhandlungen band 183 heft 1 2006 p.

Granites comprise much of the continental crust and their generation and evolution record crustal differentiation and mantle crust interaction in various tectonic settings e g subduction zones collision zones and intraplate environments. Si 02 c v 5o no aisi 308 kaisi308 weight percent fig. From the geochemical data it is inferred that the primary magma was an alkaline subalkaline basalt magma forming in a within plate setting. 1995 abdalla et al.

This work reviews the geology geochemistry and geochronology and discusses the spatial and temporal relationship of the granite pegmatite and the rare metal mineralization of the kenticha granite pegmatite southern ethiopia using published and unpublished works to give a comprehensive understanding about the formation of the mineral deposit. Li albite granite micropegmatite veins sn w quartz calcite fluorite veins. In the trace element tectonic discrimination diagrams of pearce et al. Rare earth element geochemistry of within plate granite tsagaan davaa modot bogd uul s khishigsuren1 s kőksal2 m cemal gőncűoglu2 s dandar1 1school of geology and petroleum engineering.

This geochemical classification of granitic rocks is based upon three variables. Sn w ta nb. These are feo feo mgo fe number or feo tot feo tot mgo fe the modified alkali lime index mali na 2 o k 2 o cao and the aluminum saturation index asi al ca 1 67p na k. Whereas the alkali granite lie in the within plate 5vpg.

Geochemistry and petrogenesis of late neoproterozoic peraluminous anorogenic leucogranite zabara area central eastern desert egypt el sayed mohamed m. Symbols as for fig. 1771 ma pb pb in rift related environs and evolved by partial melting of stabilized lower middle crust initial 87sr 86sr 0 7302 0 0066 and µ 1 8 5 0 5. Leucogranite pegmatitic veins at the contact between granite and gneisses.

2middle east technical university ankara turkey rare earth elements geochemistry is very important to study of rocks. 1982 hassanen et al. This is however also due to fractionation making the a type magma cross into the corner of the i s m type rectangle. Curves for water saturated liquids in equill brium with quartz and alkali feldspar at indicated conflng pressures 500 1000 3000 5000 bars after thompson et al 1982.