Gecamines discovered the Big Zinc Zone prior to 1993 in the footwall of the Kipushi Fault Zone and it remains unmined. Historical estimates of the Big Zinc's resources between the mine's 1,295- and 1,500-metre levels total 4.7 million tonnes averaging 39% zinc and 0.76% copper. Several exploration holes confirmed the continuation of the Big Zinc Zone below the 1,640-metre level. Kipushi's historical resource estimates above the 1,500-metre level total approximately 17 million tonnes averaging 16.7% zinc and 2.3% copper, including the Big Zinc historical resources noted above.
A Qualified Person has not done sufficient work to classify the historical estimates as current Mineral Resources and Ivanplats is not treating such estimates as current Mineral Resources. The historical resources noted above are derived from an estimate prepared by Techpro Mining and Metallurgy in 1997 and are presented at an Indicated level. A discussion of the material assumptions, parameters and methods relating to the historical resource estimate, as well as a discussion of relevance, reliability and other information regarding the estimate, is included in the Kipushi Technical Report, dated September 2012 and prepared by IMC Group Consulting Ltd., which is available at www.sedar.com.
Ivanplats intends to conduct an underground drilling program at Kipushi focused on confirming and expanding the Big Zinc Zone and extensions to the historically mined Kipushi Fault Zone and bringing the historical resources to National Instrument 43-101 standards.
Additional pumping capacity is being procured to speed lowering of water level in mine
Dewatering of the existing mine workings is continuing and by the end of Q4 2012 the water level had been lowered to approximately 980 metres below surface. Corroded sections of steelwork and equipment are being replaced as the water level recedes. Additional pumping capacity is being installed to increase the pumping volumes.
Measures are being taken to improve the delivery of materials to the site. Agreements are in place to supply additional electrical power and emergency generating sets on site have been restored to operation to help provide back up. An environmental baseline study has been completed and the final report is being prepared by a third-party consultant.
Geological relogging of existing drill cores on the Big Zinc Zone is complete and modelling is underway. Ongoing relogging of drill cores through the Kipushi Fault Zone is expected to be completed in Q1 2013.
Samples for metallurgical testwork have been collected from the existing drill core from the Big Zinc Zone. Comminution and flotation testwork has been initiated.
Democratic Republic of Congo
During Q4 2012, the Regional Exploration Group consisted of three exploration teams that conducted exploration in the Lufupa Sud-est, Fold & Thrust Belt and Lufira East project areas. The Company's geophysics team also conducted ground magnetic surveys in Lufupa Sud-est. Completed work included sampling of soil, stream sediments and termite mounds, mapping, pitting, trenching, ground magnetics, auger drilling and diamond core drilling. During the quarter, 16 diamond drill holes totalling 1,485 metres were completed. The Regional Exploration Group completed field activities in mid-November and is preparing for the 2013 field season.
Ivanplats holds two exploration permits in Gabon covering untested gold-in-soil anomalies adjacent to extensive placer gold workings within poorly explored greenstone belts.
Most Popular Stories
- Twitter Names Woman to Board
- Aspen Contracting Adding 300 Jobs
- NSA Tracks 5 Billion Cellphone Records a Day
- Nelson Mandela Dies After Momentous Life
- U.S. Unemployment Rate Dips to 7 Percent
- Consumer Spending Rises, Incomes Fall
- Fast-Food Workers Want $15 an Hour
- Roybal-Allard Tours Gordon Brush Plant
- Ford Mustang Still Packs Power
- W.H. Corrects Itself on Unclegate