Post on 05-Jul-2018
8/16/2019 Bowone-Binebas Presentation.ppt
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Sangihe projectSangihe project
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Sangihe Island
SRTM Photo Image
Binebase Prospect
Bowone Prospect
Sede-Kupa
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Bowone ProspectBowone Prospect
GeologyGeology
GeophysicsGeophysics
GeochemicalGeochemical DrillingDrilling
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Bowone – Binebase Mineralization Zone
and Historic Drill Hole Locations
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Tuffaceous sandstone, Pintareng Formation
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Tuffaceous breccia, Pintareng Formation
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Polimictic Clast of Milled Breccia
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ine Grained Porphyritic
Andesite
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Dacite Flow
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Coarse grained bio-hbl porphyritic andesite
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Remnant texture of Dacitic Crystal Tuff
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Bowone nter!reted
Lit"olog#
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1m 1! g"t Au
Silicified hydrothermal breccia
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B#$%&' 1&()(m, 1m ()'* g"t Au, &)*(+ u
Latest stage fine pyrite – enargite – barite mineralization
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Bowone nter!reted
Lit"olog#
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Oidized !"ggy Silica
Oidized #"ggy silica $m % &'() g*t +"
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Bowone nter!reted
Lit"olog#
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$m % ,'( g*t +"
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Bowone nter!reted
Lit"olog#
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Plan -iew
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110 m
100 m60 m
2 m
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Loo.ing So"th
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Loo.ing /est
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Loo.ing So"th
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0$-0)1-23&2 456 - Barite - Ba4SO(6 - 78 $'2 9
0$-02$-$22, 4:6 - +l"nite - ;4+l34SO(64O<6,6 - 78 3')) 9
0$-0)1-,&3) 4:6 - ;aolinite - +l4SiO&64O<6( - 78 ',, 9
00-0(-$3(0 456 - Pyrite - =eS - 78 $0')0 9
00-0(,-$0(& 456 - >"artz? syn - SiO - 78 ),'&1 9
=ile8 @+A,00021&'raw - ype8 h*h loc.ed - Start8 3'0(2 - @nd8 )0'0&0 - Step8 0'032 - Step time8 $22', s
L i n
4 C o " n t s 6
0
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3000
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2000
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1000
$0000
$$000
$000
-heta - Scale
& $0 0 30 (0 &0 ,0 20 )0
+l"nite in sample BOD-3 4$0)'&m6
-Eay powder diffraction analysis
&000
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00-0($-$(,2 F - :atroal"nite - :a+l3 SO( O< ,
00-01-020$ 4F6 - Clinochlore-$AFFb? ferroan - 4Ag?=e6,4Si?+l6(O$04O<6)
00-0(-$3(0 456 - Pyrite - =eS
00-0(,-$30) 4F6 - Pyrophyllite-A - +lSi(O$04O<6
00-003-00$& 4D6 - Aontmorillonite 4bentonite6 - 4:a?Ca60'34+l?Ag6Si(O$04O<6G<O
0$-0)1-,&3) 4:6 - ;aolinite - +l4SiO&64O<6(
00-0(,-$0(& 456 - >"artz? syn - SiO
=ile8 @+A,000&&&'raw - ype8 h*h loc.ed - Start8 3'0(& - @nd8 )0'0() - Step8 0'032 - Step time8 $22', s
L i n
4 C o " n t s 6
0
$000
000
3000
(000
&000
-heta - Scale
( $0 0 30 (0 &0 ,0 20 )
Pyrophyllite in sample BOD-$ 430'&m6
-Eay powder diffraction analysis
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Arribas et al., 2000
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Bawone Prospect S"mmaryBawone Prospect S"mmary
Bowone mineralization zones;Bowone mineralization zones; Bowone main zone is NW structurally controlledBowone main zone is NW structurally controlled,, Bonsos unclear Bonsos unclear Brown Sugar is relatively EW structurally control, in contactBrown Sugar is relatively EW structurally control, in contact
o tu and ine grain andesite porphyry!o tu and ine grain andesite porphyry!
"igh Sulphidation style, lateral alteration zonation"igh Sulphidation style, lateral alteration zonationnot well developed, more structural than lithologicalnot well developed, more structural than lithologicalcontrolcontrol
#u $ %u mineralization#u $ %u mineralization, higher gold assay associated, higher gold assay associatedwith dar& grey-'lac& sulphide (ine pyrite)marcasite-with dar& grey-'lac& sulphide (ine pyrite)marcasite-enargite*!enargite*!
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Hig" Lig"t C"annel $am!le
%ssa# &esult
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$m % 0'23 g*t +"? 2( g*t +g
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$m % $') g*t +"? 00 g*t +g
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+m !+. g)t #u, +++/ g)t #g
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+ m +0! g)t #u, 1 g)t #g
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Binebase. /orth sector outcrop
intersected BI$%1( and BI$%1'
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Bladed r0stal Barite -ein, central sector
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Central sector o"tcrop
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Silicified breccia? central sector
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#idi2ed 3ugg0 silica, South Sector. (m !)1* g"t Au,
&)1*+ u
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Sede and ;"pa ProspectSede and ;"pa Prospect
+bo"t )-$0 .m from Bowone-Binebase +bo"t )-$0 .m from Bowone-Binebase
Sede8 saccharoidal Hz – gal –sph #ein andSede8 saccharoidal Hz – gal –sph #ein and
silicified andesitic t"ff silicified andesitic t"ff
;"pa8 chalcedonic Hz – blac. s"lphide;"pa8 chalcedonic Hz – blac. s"lphide#ein#ein
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Gold +ssay 4g*t6 <ighlight
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Sample loc and high light assay res"lt
y 4g 6 g g
0 $00
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Sede8 silicified andesitic crystal t"ff? $m % '1)g*t +"
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Sede8 silicified crac.le breccia? 0' m % $& g*t +"
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Sede8 saccharoidal Hz-gal-sph? (', g*t +" 4grab6
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Sede8 sacharoidal Hz-gal-sph #ein? 0'(m % $3'( g*t +"
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;"pa8 chalcedonic H"artz-blac. s"lphide #ein? prelim $ g*t +"
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;"pa8 clay 4go"geI6– blac. s"lphide8 prelim )'( g*t +" 4grab6
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>+ >C
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Aost #al"e below detection limit
Blan. =+S ppm +"
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Sangihe S"mmarySangihe S"mmary
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Sangihe S"mmarySangihe S"mmary
Bowone-Binebase <S styleBowone-Binebase <S style Bowone8 s"lphidic ore? higher grade gold phaseBowone8 s"lphidic ore? higher grade gold phase
related with enargite-bariterelated with enargite-barite
Binebase8 gold related with silica and s"lphide?Binebase8 gold related with silica and s"lphide?late barite-base metal #eins carried higher goldlate barite-base metal #eins carried higher gold Binebase8 oidised ore may s"itable for b"l.Binebase8 oidised ore may s"itable for b"l.
d"mp leach processingd"mp leach processing
Sede and ;"pa? +"-base metal LS styleSede and ;"pa? +"-base metal LS style Se#eral deposits may possible to process in oneSe#eral deposits may possible to process in one
mine facilitymine facility
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TH%'( )*+
Small fish