FREEGOLD - wiredspace.wits.ac.za
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Mine Call Factor versus Waterjets FREEGOLD 8/92 10/9212/92 2/93 4/93 6/93 8/93 10/9312/93 2/94 4/94 Waterjets —+— M.C.F (6mth ave)
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Mine Call Factor versus WaterjetsFREEGOLD
8/92 10/9212/92 2/93 4/93 6/93 8/93 10/9312/93 2/94 4/94
Waterjets —+— M.C.F (6mth ave)
TON
FRI17 SUN 19 TUE21 THU 23SAT 18 MON 20 WED 22 FRI24
JUNE 1994
DAY SHIFTAVE = 0.62
OFF SHIFTAVE = 0.14
NIGHT SHIFT AVE = 0.43
$
2:00 6:00 10:00 14:00 18:00 22:00TIME
94/6/17(FRI) ------ 94/6/18(SAT) ------ 94/6/19(SUN)
0:00 4:00 8:00 12:00 16:00 20:002:00 6:00 10:00 14:00 18:00 22:00
TIME
94/6/19 (S U N )------ 94/6/20(MON) ------ 94/6/21 (TUE)------ 94/6/22(WED) ---- 94/6/23(THU)
WATER CONSUMPTION WH 1BSVM/SHiFT DAY-SHIFT OFF SHIFT N/SHIFT
0 0:00 4:00 8:00 12:00 16:00 20:00
2:00 6:00 10:00 14:00 18:00 22:00TIME
94/6/25(SAT) ------ 94/6/26(SUN) ------ 94/6/27(MON)
94/6/28(TUE) ----- 94/6/29(WED)
CM
G/T
40-14 N03 S3 SAMPLING ON 02-11-88 CONTINUOUS SAMPLING 10cm. INTERVALS
METERS
------CMG/T VALUE - I - AVG VALUE=516 cmg/»
W1*
«D
38- 9r*
40-14 N03 S3 SAMPLING ON 30-08-88 AVERAGE OF 5m. SPACED SAMPLES
1000.00-
t;
u
200.00-
100.00 -
0.00-^ TSAMPLE COMBINATIONS
v .'
i l i t l' >' . \\ \v, \ o
10
CM
G/T
40-14 N03 S3 SAMPLING ON 30-08-88CONTINUOUS SAMPLING 10cm. INTERVALS
METERS-jui
------ CMG/T VALUE H - AVG VALUE=503 cmg/t
CM
G/T
3
3000.00
2000 00 -
1000.00-
0.00
22-32AS1 SAMPLING ON 13-07-88AVERAGE OF 5m. SPACED SAMPLES
SAMPLE COMBINATIONS
CMG/T VALUE
22-32A St SAMPLING ON 13-07-88CONTINUOUS SAMPLING 10cm. INTERVALS
8000.00-
2000 00-
1000 00
I I I I 11 III I I M I I111 l^l I II I II I I T l l l T l l l l i l l l l l l 11 m i m i l l i mi m i i i m i l l i i m 11 mi i m 11 m m m i i m m 11111 mi m 11 i m ■ 11 mi 11 i i i i i 1111 m^
METERS
------CMG/T VALUE 4 - AVG VALUE=909 cmg/t
3000 00
22-32A S1 SAMPLING ON 06-07-88AVERAGE OF 5m. SPACED SAMPLES
2000 00-
150000 -
SAMPLE COMBINATIONS
CMG/T VALUE
CM
G/T
22-32A S1 SAMPLING ON 06-07-80CONTINUOUS SAMPLING 10cm. INTERVALS
------CMG/T VALUE - f - AVG VALUE=864 cmg/t
Graph 80. Continuous sam
pling
1000.00-
40-14 N03 S3 SAMPLING ON 02-11-88AVERAGE OF 5m. SPACED SAMPLES
o
200 00 -
100 00 -
0 00
« 8 t l!I
v'-'.•';> ; v'v xv^
n i l
r —
' .
•\\vX N ' '
v • -.vVv- ■: v : s..: :
. M l
i .
Is . ,
s4.■■
\ ^
n<
pi... - s«<s~ \«̂
."W .
; ■-»- •'•>v -V * >I ■
.. ■\\ » \ O
SAMPLE COMBINATIONS
| CMG/T VALUE - f - AVG VALUE=590 cmg/t
Graph 81.
I'-
Western Holdings MineContinuous Sampling 1988
grada (g/t)
Western Holdings Mine3# Continuous Sampling
sample
Western Holdings Mln«3 Shaft Continuous Sampling
Grade(g/t)
Western Holdings Mine3# Continuous Sampling
230-
220-
210-
200-
130-
» '''' ' *cv.______________ _______ _________________________________________________________________________
Average of every 10th sample, different starting points
J ■
\ ■. \ v '
■ ;x .
fX -x s . ,
's » : 'IfP
^ > T* •
\ • . .
✓<.ir
. .
*
V* t
1 I 1>V *
» ' • • - •. >' i i l' ' ■
.
- - ■|
- x '; \ ■ \
•n* ■ V
v\ S \̂*
V
samples
00y>
< WESTERN HOLDINGS MINE•4/47E-30 Vacuuming •xparfmant FREQ DIST
Iac
bO j n u n » 24 7 g/t \
J30 111|1
10 30 50 *0 00 150 400 800 1500 250020 40 80 80 100 200 800 10002000
GRADE (g/t)
22/2/95
WESTERN HOLDINGS MINE4/47E-30 Vacuuming axparlmtnt FREQ DIST
I 00
B 60'
| 408 *■
| 10
S 0
[| m « r - 22 8 g/t [............
1110 30 80 70 00 150 400 800 1600 2500
20 «0 80 80 100 200 800 1000 2000 GRADE (g/t)
OH8/3/05
FREQ
UENC
Y DI
STRI
BUTI
ON
(%)
FREQ
UENC
Y DI
STRI
BUTI
ON
<%)
WESTERN HOLDINGS MINE4/47E-30 Vacuuming exparlm«nt FREQ DIST
-----------------mean - 437 Q/t ]
f I
. J l - . . . 1 WUUU—10 n 50 70 00 150 400 800 1500 2500
20 40 80 8u 100 *00 800 10002000 GRADE (g/t)
24/2/05
WESTERN HOLDINGS MINE4/47E-30 Vacuuming axparlmant FREQ DIST
80mean • 20 5 g/t J
f l __ ______________
r t
J D U - r - r — r - r — r - r - r - r - , ---------- ,— V ¥ >■- f r i’i ^ . i - ' T i - i ’i
10 30 50 70 90 150 400 800 15002500 20 40 80 80 100 200 800 10002000
GRADE (g/l)
FTF1 13/3/05
WESTERN HOLDINGS MINE4/47E-30 Vacuuming experiment FREQ DIST
30 40 HO BO 100 300 000 1000 3000 GRAOE (8/1)
ED >oa/as
WESTERN HOLDINGS MINE4/47E-30 Vacuuming axparlmant FREQ OIST
Min - 35 81 Ii■
1 I— a 1------------------------------------ j
10 30 30 70 90 15C 400 800 1500 2500 20 40 00 80 100 200 900 1000 2000
GRADE (Q/t)
8/4/95
FREQ
UENC
Y DI
STRI
BUTI
ON
(%)
WESTERN HOLDINGS MINE4/47E-30 Vacuuming experiment FREQ DIST
-----
^ m«an - 28 1 g/t I -------------------
f L f l l n w E f f f o i . ■ ........ .........................10 30 50 70 90 150 400 800 1500 25CO
20 40 80 80 100 200 600 1000 2000 GRADE (qA)
27/3/95
WESTERN HOLDINGS MINE4/47E-30 Vacuuming axparlmant FREQ DIST
;>o‘m«an - 41.8 g/t I
40
£20'
: _JU 5 m
i i i
10 30 50 70 90 150 400 800 1500 2500 20 40 80 80 100 200 800 1000 2000
GRADE (Oft)
13/4/95
n x * x '
I
WESTERN HOLDINGS MINE4/47E-30 Vacuuming experiment FREQ DIST
eo-i
so|40-j
30-J
?0-fMEAN - 89 6 g /t
tol - j J l l i ll8»to 30 50 70 80 1 50 400 800 1500 2500
20 40 8T 80 100 200 800 1000 2000 GRADE (g/t)
I 24/4/95
WESTERN HOLDINGS MINE4/47E-30 Vacuutr.ing Experiment FREQ DIST
80
50
40
30■ I MEANMEAN =88 2 g/t
10 33 50 70 90 150 400 800 1300 2500 20 40 80 80 100 200 800 1003 2000
GRADE (g/t)
2 ' i to 24/4 /9 ! J
0^«p10^e^2-kep14-k'p16 kep1B-k:^0-kece?-Sep24-bef£6-becbfl-b6io kepO«:-,Oct04-lOc|l06-bct:08-bctl10 0ctri2-lOct' t-Oct' 16-bct1 S-'oct'aO-bc^-Oct 09-Sep11 -Sepl 3-Sepl 5-S*p17-Sepl 9-SepC 1 Sef£3-SeFC5 S*f£7-S»f£9 Sep01 -0c*03-0ct 05-0ct07 0ct 09-0ct 11 -Oct 13-' -et 15-Oct 17-Oct19-OU21 -Oct
DAYS
- S • 2 # WEIGHTOMETER -*5 - HOPPER TONS PLANT WEIGHTOMETER - + - MILLED TONS
WESTERN HOLDINGS NO 2#2 SHAFT PROGRESSIVE TONNAGE
WESTERN HOLDINGS NO 2# Progr GO-BELT VS PULP VALUE
(6m) n
y
WESTERN HOLDINGS MINE2 SHAFT HOISTED QOLD vs GOLD ACCOUNTED
250
O0-k*p lO-kep'^-bep'H-feap'ie-ktp'lB-bep'^feep^-ksp^A-kepae-kep^aliep'aobep102-bcl1 (M-'Ocl^e-IDcl'oB-bct1 lo-'oct'12-bct1 H-'oct'ie-'oct'18-bct 09-Sep 11-Sep 13 Sep 15-Sep 17-Sep 19Sep 21-Sep 23-Sep 25-S«p 27-Sep 29-Sep 01-Oct 03-0ct 05-0ct 07-0ct 09-0ct 11-Oct 13-Oct 15-Oct 17-Oct
DAYS
-E3- PROGR GOLD HOISTED GOLD ACCOUNTED FOR
wn[*A
djn
d sa
ipq-
o3 y
ens Z 16
WESTERN HOLDINGS MINE2 SHAFT DAILY GO-BELT vs PULP VALLES
08-kep10-bep'l2-k»p'l4-fe*p 16-kepl18-feepl2o fe8pl22-feepl24 kep'26-^9^28 kep30 kepVj-Oct'tW-bct' OB-bct'oS-bct'lO-bci' 12-bct' 14-ba116-bct1 IB^Oct 09Sep 11-Sep 13-Sep 15-Sep 17-Sep 19-Sep 21-Sep 23-Sep 25-Sep 27-Sep 29-Sep 01-Oct 03-0ct 05-0ct 07-0ct 09-Cct 11-Oct 13-Oct 15-Oc.t 17-Oct
DAYS
SAMPLING METHODS 7cm versus 4cm
SAMPLING METHODS 7cm versus 4cm
no of samples
Go
ld(g
)
Gold Blasted versus Gold Accounted for
Shifts
Gold Blasted — Gol d Accounted for
GOLD LOSS EXPERIMENT Progressive
?
SHIFT
GOLD BROKEN - + - GOLC LOSS
Western Holdings Mina2 Shaft / Pres.Brnnd C.T.P. experiment
holsted(weighmeter) — I— Trammed (loco) delivered(wmater) - H - milled (weighmeter)X
Au
(kg)
Western Holdinns Mine2 Shaft / Pres.Brand C lP . experiment
Gold called for -4 — Gold accounted for5
Graph 98. 2
Shaft -
President Brand carbon-in-pulp
experiment. G
o-belt vs. pulp grade.
o08
Western Holdings '<>ne2 Shaft / Pres.Brand C.T.P. experiment
4 ‘r r i~ i t tTt t t i t i t t r r T r r r i i i i i i i r n -n T r r v i- m m r r r r rvr i i i i it h t i r n ir i i i i i i i i i i i i08-Sap 12-S#p 16 S »p 20-Sap 24-Sap 28-Sap 02-Oct 06-0ct lO -Oct 14-Oct 18-Oct 22-0ct 28-Oct 30-0ct 03-Nov 07-Nov 11-Nc/ 15-Nov 19-Nov 23-No
4-0ct 08-0ct 12-Ocl 16-0ct 20-0ct 24-Oct 2 8 -0
Go-belt grade(prog) — t— Pulp grade (prcg)
OV10-Sap 14-S*p 18-Sap 22-Sap 28-S »p 30 S*p 04-0ot 08-0c» 12-Oct 18-Oct 20-0ct 24-Oct 28-Oct 01-Nov 05-Nov 09-Nov 13-Nov 17-Nov 21-Nov
Graph 99.2
Shaft •
T resident Brand carbon-in-pulp
experiment. Go-belt vs. pulp
grade.
Western Holdings Mine2 Shaft / Pres.Brand C.T.P. experiment
Grade Range (g/t)
go-Delt values pulp values
W ESTERN HOLDINGS MINE2 SH AFT G O BELT SAMPLING DISTRIBUTION
30.0%-
25.0%-
20.0V
150%-
10.0%-
5.0%-
0.0%-
Number of samples = 688 Average grade •= 6.42 g/tWeighted Average grade = 6.53 g/t Standard deviation = 6.06
— i-------------1-------------1------------- r10 12 14 16
GRADE RANGE (g/t)
- M - 8 SEPT to 23 Nov 95
Author De Jager E J Name of thesis The analysis of the mine call factor in gold mining with specific reference to Western Holdings Mine 1997
PUBLISHER: University of the Witwatersrand, Johannesburg
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