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The Harts River Project comprises two blocks of farms situated in the Northern Cape Province of South Africa between Vryburg and Warrenton, namely, the Brussels Area, comprising of Brussels, Brussels North and Brussels South. |
History Sporadic small scale workings on large-boulder Rooikoppie-type gravels are found to the north of the area. These are presumed to have yielded diamonds, but no records of recoveries can be found. There is no record or evidence of any exploration having previously been done on any of the farms comprising the Harts River Project. |
Local Geology Large areas of large-boulder Rooikoppie-type gravel are developed on top of thick calcrete to the north of the Project. |
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Within the project area, the Harts River valley is broad and open, with deposits of alluvium distributed over valley widths in excess of 5km. The floor of the modern valley consists predominantly of Dwyka tillite and shale. The valley has been interpreted as a Dwyka age erosional feature that was possibly scoured by glaciers into a pre-existing river valley. The widened fluvial valley became filled with glacial sediments after retreat of the ice. Different ages of alluvial gravels were deposited along a broad zone down the central axis of the valley. Three stages of gravels have been identified on the Blocks and surrounding areas. The oldest gravels, representing the earliest or first stage of alluvial deposition, are relatively fine-grained and poorly sorted and occur at elevations of 15m-20m above the present river level. The second stage of gravel formation was by fluvial deposition in channels. These gravels are medium to course grained and occur 7m-10m above present river level. The third stage of gravel formation is associated with the present day Harts River and this gravel occurs 2m-5m above present river level. |
The Brussels Area lies approximately 5km south of Vryburg and stretches for approximately 25 km from north to south. The Brussels Area comprises eight farms or portions there of, including Versters Dwaal 818 HN, Zamenkomst 819 HN, Middelrand 820 HN, Lange Rand 821 HN, Uitenhage 826 HN, Gamabot 733 HN, Zwartkrans 732 HN and Championskloof 731 HN. Exploration drilling and bulk test mining are taking place on the Remaining Extent (“RE”) of Portion 1 of Zamenkomst 819 HN in the Brussels Block. This block is located approximately 20km south of Vryburg on the Vryburg-Taung highway. A small scale alluvial diamond mining company, has been commissioned by PDF to carry out the bulk test mining work on the farm and the properties to the north of the farm. Access and Infrastructure Recent Exploration The first 519,395 ton gravel bulk sample taken during 2006 was excavated and treated in order to ascertain the diamond grade and quality of the total gravel package. A subsequent 133,570 ton gravel bulk sample was excavated but different gravel layers were treated separately. The test work was successful and the company expects to achieve its target of identifying a large resource of 0.5 ct per 100 tons at prices of between USD1500 to USD2000 per ct. A second area close to the town of Pampierstad has been added to the Harts River Project. RC drilling has been completed on the property identifying the potential for a large gravel resource. Bulk sample testing is to commence during 2008. Future Exploration Management and Staff |
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