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Simmergo Division Ergo

Producer in South Africa with commodities Gold, Silver
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Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.

Geologic information

Identification information

Deposit ID 10280620
MAS/MILS ID 7910200186
Record type Site
Current site name Simmergo Division Ergo
Alternate or previous names Simmer and Jack

Geographic coordinates

Geographic coordinates: 28.13475, -26.2299 (WGS84)
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Geographic areas

Country
South Africa

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Nearby scientific data

(1) 28.13475, -26.2299
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Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Metallic
Significant Yes
Milling method Hydrometallurgy Unspecified

Ownership information

  • Type Owner-Operator
    Owner Ergo
  • Type Owner
    Owner Anglo American Corp

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Demonstrated 89,799,999mt ore
    Indicated 89,799,999mt ore
    Total resources 89,799,999mt ore
    Commodity Subtype Grade units Group Importance Year
    Gold Au 1.0399 g/mt Gold Major 1982
    Silver Ag 0.1 g/mt Silver Minor 1982

Workings at the site

  • Type of workings Surface
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Capacity 5143
    Capacity Units MT ORE/DAY
    Unit Production Cost 2
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981
  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method BREAST STOPING 10-30
    Capacity 5143
    Capacity Units MT ORE/DAY
    Unit Production Cost 14.01
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 3
    Year of Information 1981

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
U.S. Bureau of Mines Minerals Availability System MAS 7910200186

General comments

Subject category Comment text
Deposit DAILY MINING CAPACITY AND THE OTHER 67% ARE MINED BY SURFACE METHOD FROM SURFACE DUMPS. S1 DEV 1 REC 2 IS FOR MINING SURFACE SLIME DAMS 2003- 2033 WITH 45% RECOVERY. Q1 + Q2 = Q3 Q-MAT-1 IS 23 M MT OF SURFACE DUMP WITH IN-SITU GRADE OF .93 G/MT AU AND 11 M MT OF IN-SITU UNDERGROUND ORE AT 4.0 G/MT. Q-MAT-2 IS SURFACE SLIME DAMS TOTALED 56 M MT AT .5 G/MT IN-SITU GRADE. Q-MAT-3 EQUALS THE SUM OF MINEABLE MATERIAL Q1 AND Q2 TOTALED 89.8 M MT AT WEIGHTED AVERAGE GRADES OF 1.04 G/MT AU AND .1 G/MT AG.

Reporter information

Type Date Name Affiliation Comment
Reporter 15-OCT-1992 Boyle, Ed U.S. Bureau of Mines