Contiguous Exploration during 2000

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					Contiguous Exploration during 2000
Africa
? Contiguous exploration continued to be directed at finding new satellite oxide ? deposits and pit extensions. ? Successful exploration activities at Sadiola Mine culminated in the addition of 1.02 ? Moz of gold to the resource. Within the SEMOS exploitation area significant extensions to known mineralisation along the eastern and northern margins of the current Sadiola LOM pit were made, while encouraging intersections were produced from the Phase 3 deep sulphide drilling programme. ? Exploration at Geita mine’ Nyankanga deposit has outlined significant down-dip ? s extensions of mineralisation.

Australasia
? Exploration activities during the year resulted in the addition of 0.6 million ounces to ? the resource base. ? Encouraging results were received in the Tanami area from continued drilling on the ? Coyote prospect, which remains open at depth and along strike. This project is likely to move into a resource delineation phase during 2001. ? Significant near surface gold values were obtained shallow drilling at the Pebbles ? prospect, located approximately 6 kilometres south of Coyote. The results indicate potential for additional satellite resources in this area. ? At Sunrise Dam Gold Mine a resource definition drilling programme targeting the ? Western Shear Zone (WSZ) and associated footwall structures commenced. A new sub-vertical lode was defined in the footwall that has the potential to expand reserves. ? A new discovery has been made at the Sickle Prospect, north of Sunrise Dam, with ? fresh rock mineralisation intersected in drilling over a strike length of 400 metres. Broad downhole intersections of up to 30 metres indicate significant tonnage potential.

North America
? Exploration at Cripple Creek has resulted in new reserves in excess of mine ? depletion for the third consecutive year. ? At Jerritt Canyon, exploration focused primarily on defining new resources close to ? the three existing mines and to discover new, high-quality deposits to extend the life of the joint venture.

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South Africa
? Five of the seven boreholes started as part of the Western Ultra Deep Levels ? (WUDL) exploration programme have been cased and temporarily sealed, without drilling down to the Ventersdorp Contact Reef (VCR). One borehole was completed during the year and another abandoned due to drilling problems. This decision was taken in light of reduced exploration expenditure and a review on possible timing of production from this source. ? Two surface boreholes collared in the Moab Extension area (near Moab Khotsong ? mine) to explore the Vaal Reef, intersected the reef at 3,310 metres and 3,380 metres respectively. It is planned to obtain further information from reef intersections uo to 500 metres from the original intersections by using long hole deflection techniques pioneered in the oil industry. ? The VCR was intersected in two surface boreholes drilled in the Goedgenoeg area, ? near the Tau Lekoa mine. Further drilling is planned for this area in 2001. ? Five holes drilled in the Weltevreden section of Tau Lekoa in the Vaal River area to ? evaluate a reworked channel in the VCR yielded poor values and further development has been put on hold. ? The ‘ Reef exploration programme at Tshepong was restricted to the pilot site ? B’ block, focusing on trial stoping of the high grade A and C scour facies channels, together with orientated on-reef exploration development. The pilot site project feasibility has been completed and an expansion to the project is being investigated. ? The mineralisation and prospectivity models for the Basal reef, developed in ? conjunction with Leeds University’ Rock Deformation Research Group, were s completed and successfully implemented at Tshepong.

South America
? At Cerro Vanguardia in Argentina, an additional resource of 180,000 ounces of gold ? and 2.1 million ounces of silver, was defined. ? At Serra Grande an additional 366,000 ounces of resource was defined, mainly from ? the newly discovered Palmeiras and Forquilha ore bodies. In current operations the conversion rate of resources to reserves increased through underground drilling and development. In addition to maintaining the level of exploration expenditure around the mine a further US$1.5 million will be spent to establish the continuation at depth of the Mina III orebody. An airborne geophysical survey was flown during 2000 and the results will be used to identify regional exploration targets.

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Description: Contiguous Exploration during 2000