 | | Journal (issue) | Geological Society ofZimbabwe NewsletterFebruary, 2010Geological Society ofZimbabweGZSNewsletter...Holmes’ presentation on theChishanya Carbonatite.THE GEOLOGICAL SOCIETY OFZIMBABWE, P.O. BOX CY 1719, CAUSEWAY...CAUSEWAY, HARAREGeological Society ofZimbabwe NewsletterFebruary, 2010ContentsEDITORIAL …………...November 2009 Symposium of theGeological Society ofZimbabwe …………………………………………….. 5A Review of the Stratigraphy...Setting of the Palaeoproterozoic MagondiSupergroup,Zimbabwe - Type Locality for the “Lomagundi” Carbon Isotope |  | | Book | Kalsilite, recalculated from an analysis of acomplex phenocryst of kalsilite andnepheline lava of Baruta...crystallises in the hexagonal system and has acomplexformula that represents essentially a hydrated...(Na,Ca,K),[A1,(Al,Si),Si,0.4](Cl,F, OH,CO,,SO,)MagnetiteFe,O,HaematiteFe,O,PyritesFeS,Sphene(Titanite)...of pressure resulting in thedecomposition ofcomplex minerals, like amphibole or biotite, and alsoin...manganiferous carbonates are lesswell represented.Complex carbonates containing rare-earths are frequent |
|