Field Trip to the Freda Rebecca Gold Mine - Saturday 16th July
Field Trip to the Freda Rebecca Gold Mine - Saturday 16th July
Meet at 8am at the Entrance Gate ( we expect to finish around 1pm )
Bring your own underground PPE.
PLEASE NOTE: The number of people who can attend this field trip is restricted and only the first 20 who register will be able to proceed.
Book your place by sending an email back to the GSZ on this email address.
A Short Note
All the information presented here is found on the Asa Resource Group official website; http://www.asaukplc.
com/ The gold mine is situated near the town of Bindura, approximately 90km north-east of Harare, Zimbabwe – Figure 1
Geology
FRGM lies on the central axis of the synclinal Mazowe-Bindura Greenstone belt. The geology of the area around FRGM is characterised by the Shamvaian sediments, diorite and granodiorite.
The FRGM orebodies are largely hosted by the Prince of Wales diorite and the Bindura granodiorite. The mineralisation is hosted within two major shear envelopes. Individual shears are variable in width and these two systems merge to the south west at depth flattening at around 850m elevation and extending into the metasediments. The shear system is characterised by a set of anastomosing shears separated by relatively underformed rock units.
Background
Historical exploration and production – back to 1912
The Freda oxide and the Freda and Rebecca sulphide gold deposits are part of the more recent (modern) discoveries in Zimbabwe – 1987
Cluff Resources were the first to develop 2 open pits – mining oxides at Freda and sulphides at Rebecca.
In 1996, Ashanti Goldfields Zimbabwe acquired the mine in 1996 when underground operation at Rebecca were developed.
In 1998, the Freda-Rebecca became a fully underground gold mine
In 2007, the mine was put on care and maintenance until 2009 when mining restarted.
Geology
The FRGM ore bodies are hosted by the Prince of Wales diorite and the Bindura granodiorite.
The mineralisation is hosted within two major shear envelopes. Individual shears are variable in width and these two systems merge to the south west at depth flattening at around 850m elevation and extending into the Shamvaian metasediments.
The shear system is characterised by a set of anastomosing shears separated by relatively underformed rock units.
Mineral Resources
Classification
Cut-off (g/t)
Tonnes (‘000t)
Grade Au(g/t)
Gold (‘000oz)
Indicated
1.5
21,043
2.48
1,675
Inferred
1.5
8,746
2.28
640
Total
1.5
29,789