PLATINUM the PGE Resources of the Great Dyke

PLATINUM the PGE Resources of the Great Dyke

PLATINUM The PGE resources of the Great Dyke - C Mwatahwa and C Musa 1 Presentation Overview PLATINUM (2/2*,&$/(77,1* 758&785($1'75$7,*5$3+< ,1(5$/2*< • ((),1(5$/2*< • 5(,1(5$/2*< Ò5(6285&(6 ,1,1*Ä52&(66,1* • (() '(17,),&$7,21 • 3(1&$67,1,1* • 1'(5*5281',1,1* • 52&(66,1* 2 Geological Setting PLATINUM 5($7<.(,6$1(/21*$7(/$<(5(' ,17586,21Ì 1758'(',0%$%:($1$5&+$($1 &5$721*5$1,72,'6$1'*5((16721(%(/7 52&.6 03/$&(0(17$*( ÐÓÕÒ ±Ð$ÌÆ,1*$7(ÐÎÎÎËË%Ç :20$,1&+$0%(56:,7+),9( 68%&+$0%(56 0$//(676Ë$985$'21+$68%&+$0%(5Ê //8%&+$0%(56+$9( 5(6285&(6 3 Transverse Section PLATINUM O 2&&856$7 6$0( /,7+2675$7,*5$3+,& 81,7,1$// 68%&+$0%(56 O 76%(+$9,285 )2//2:675(1'2) /$<(5,1*:,7+,1 Ï$1',6 6<00(75,&Ì O ,36$5(6+$//2: 5$1*,1*)520ÏÒ 72Î Stratigraphy PLATINUM $),&81,7$77+(723 2:(5/75$0$),& 6(48(1&(P%52.(1,172 3<52;(1,7($1''81,7( 68&&(66,216 5(6285&(62&&85 1($57+(7232)7+( 8/75$0$),&68&&(66,21Ì 5 Local Stratigraphy PLATINUM • Mafic unit up to 300-1200m thick at axis • Chromite seam at base of mafic unit • Mafic mainly gabbronorite –opx,cpx with plag • Upper P1-plagioclase websterite ±6m thick • Plagioclase websterite underlain by poikilitic plagioclase pyroxenite (so called bronzitite) • MSZ (2-3m)occurs at the top of the plagioclase pyroxenite unit and extends into the base of the websterite • MSZ can be correlated in all subchambers • The S1 Layer=MSZ Mineralogy PLATINUM • 50% of PGEs associated with base metal sulphides(BMS). • Remainder of PGE associated with fine grained bismuthotellurides and arsenides. • Pyrrhotite, Chalcopyrite, pentlandite and pyrite • Pyrrhotite is the dominant BMS • BMS grains are coarse (20-25µm). • Silicate gangue mineralogy made up of pyroxene(dominant), plagioclase, chlorite ,tremolite and talc. PGM distribution PLATINUM PLATINUM MSZ reef Cross section-Shurugwi Subchamber 9 PLATINUM Orebody Morphology PLATINUM Location of PGE resources Location of economic PGE resources 11 Distribution of PGE resources per PLATINUM sub chamber 5% 13% Darwendale subchamber Shurugwi subchamber Wedza subchamber 82% PGE resources= 3.4billion tonnes 12 PLATINUM Distribution of PGE resources 13 PLATINUM Distribution of PGE resources-4E oz 12% 31% Anglo Platinum Zimplats Mimosa ZMDC JVs 4% 53% 4E resources= 411moz inclusive of oxide resources 4E= Pt +Pd+Au+Rh 14 Metal Profiles & Reef Idenfication PLATINUM Reef Identification PLATINUM PLATINUM ,1,1*87 17 PLATINUM 1'(5*5281',1,1* • Mining layout consist of four bords up-dip of the Strike Conveyor and two bords down dip of the Strike Conveyor. • Pillar dimension are 6m by 5m on strike and dip respectively • Bords span is 12m • Strike Conveyor Bord is 8m • Pillar holing is 6m • Total section width is 115 m skin to skin Mining Operations-Underground and Surface PLATINUM Annual 4E production to reach 1,000,000oz by 2013 19 PLATINUM Processing • Unki Concentrator PLATINUM • Thank you.

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