GENERAL39208

• Permit No: M1982090
• IBM Index Class Name: General Documents
• Doc Name: ROYAL RESOURCES CORP ANNUAL REPORT 1986
• Annual Report Year: 1986
• Media Type: D
• Archive: No

Great Boulder Holdings Limited
(100% owned, and managed)
WMCH's wholly owned gold Interests are
held by Great Boulder Holdings Limned.
Great Boulder made a net profit
of X42.9 million 033.6 million) on a turnover
of 587.8 million 089.3 million) for the year.
KALGOORLIE GOLD OPERATIONS
as, _ +c
Tony Banlett
Manager
Durng the year mining of the Great Boulder
open cut at Fimiston was completed and
the ore was transported to Kambalda (or
treatment.
At the Lady Bountiful mine west of
Broad Arrow, in a 50/50 joint venture with
Consolidated Exploration N.L., removal
of overburden in preparation for mining of
an open cut was completed and some ore
was stockpiled. Construction of an on site
transportable carbon in-leach treatment
plant was nearing completion at year end.
Treatment of ore has since commenced.
KAMBALDA GOLD OPERATIONS
Production continued from the Victory/
Defiance underground minetogether
with the Defiance and Orchin open cuts.
The Orion and Cave Rocks open cuts
commenced production during the year and
heap leaching of low grade ore from the
Defiance open cut continued.
Deliveries of ore from the Sand King open
cut ceased during the year.
Production
1985/86 1984/85
Ore[reated (tonnes)
Kambaldammes(mdled) 665.300 731,000
Kambalda mines (heap
leached) 188.900 152,600
Great Boulder open cut 21.300 116,800
Sand King open cuts 20,700 87,400
Other purchased ores/toll
treated ores 2,800 4.100
To to I 899, 000 I , 091, 900
Recovered Grade (g/tonne)
Kambalda mines (milled) 9.41 4.06
Kambalda mines (heap
leached) nla n/a
Great Boulder open cut S.S9 6 38
Sand King open cuts 5.30 5.18
Other purchased oresltoll
treated ores 7.21 8.71
Average (Excluding heap leached) 4.48 4.48
1985/86 1984/85
Gold Recovered (ounces)
Kambaldammes(mdled) 94,367 95,523
Kambalda mines (heap
leached) 5.797 S.SSD
Great Boulder open cut 3.825 23.958
Sand King open curs 3.526 14. S58
Other' 699 1,198
Total 108,164 140,734
'Includes gold produced for
others on a toll basis
Mine Development
During the year development o(the access
decline at the Victory/Defiance underground
mine continued and removal of overburden
commenced at the Onon and Cave Rocks
open cuts.
Concentrator
Despite a lower grade of ore being
treated, record recoveries were achieved
during 1985/86. partly due to Improvements
in the gold treatment process attributable to
the use o('Kambalda screens' in the gold
recovery circuit.
The screens are an innovative feature
devised at Kambalda to better control the
flow of activated carbon In the adsorption
tanks of the carbon-in pulp arcuit, thus
significantly increasing the capacty of the
plant. Such screens have now been widely
adopted at similar plants throughout the
State.
Exploration and Ore Reserves
Proved and probable recoverable ore
reserves were estimated as follows:
June 1986 June 1485
Ore (tonnes) 8.500.000 7,900,000
Grade (gltonne) 4 9 5 0
LANCEFIELD GOLD OPERATIONS
At the Lancefield mine, production from
Eyers Shaft amounted to 142,300 tonnes at
an average grade of 6.45 g/tonne for 1985/86.
Mining of the Telegraph open cut at
Lancefeld continued although ground
stability problems affected production.
Operations commenced during the year at
the Bindah open cut, 90km south of
Laverton.
In the Agnew area, mining of the Emu open
cut was in progress and acarbon-in-leach
plant o(500,000 tonnes per annum capacity
was under construction at year end.
Production of gold subsequently began early
in August, 1986.
Production
1985186 1984185
Ore treated (tonnes) 254,650 290,800
Recovered grade (g/tonne) 4.62 4.71
Gold recovered (ounces) 37.824 44,005
Exploration and Ore Reserves
Recoverable ore reserves were estimated
as follows:
June 1986 June 1985
Lancefeld mine (underground)
Proved ore (tonnes) 580,000 510,000
Grade (g/tonne) 6.9 7.8
Probable ore (tonnes) 890.000 580.000
Grade (g/tonne) 8.5 8.0
Lancefield and Bmdah (open cuts)
Proved and
probable ore (tonnes) 190.000 100.000
Grade (g/tonne) 4.7 5.1
Emu (open cut)
Probable ore (tonnes) 1,800,000 1,700.000
Grade (gltonne) 3.6 3.7
At Lancefield, underground proved reserves
increased at slightly lower grade reFleding
development of Main Lode on the No. 6
Level. Probable reserves increased following
encouraging exploration results late in the
year from diamond drilling of the Lancefield
Deeps position. This is below the bottom
(335 metres)level ofthe old Lancefeld mine
which produced 1.6 million tonnes with a
recovered grade of 10.4 g/tonne between
1899 and 1942.
Central Norseman Gold
Corporation Limited
(50.5% owned, and managed)
PecerTeasdale
r Pendent Manager
CNGC's proft for the year was 824.9 million
(812.6 million). There was an Increase of
25% in the quantity of are treated in 1985/86
compared with the previous year and the
116,547 ounces of gold recovered was the
highest achieved in any 12 months.
Production and Development
1985/86 1984/85
Ore treated (tonnes) 303.000 241,700
Recovered grade (g/tonne) 120 13.1
Gold recovered (ounces) 116.547 101,556
Silver recovered (ounces) 73,058 93.501
Development (metres) 2.600 4,300
Ore production for the year amounted to
306,900 tonnes (268,300 tonnes) o(which
75% (65%) was derived from underground
mines with the remainder from the North
Royal open cuts. There were significant
increases in ore production from all
underground mmes(exceptthe O.K.)anda
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