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NAMAQUALAND DIAMOND
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Key Facts
Location:
Northern Cape, South Africa
Commodities: Diamond
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Comparable Properties
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Latest Information April 30, 2002 A first phase exploration program initiated to examine the diamondiferous nature of basal gravels previously reported from this location and consisted of the following: mobilization of the treatment plant to the Goubees project area; commissioning of the plant to successfully recover all heavy material, including diamonds, without loss of product; establish the diamondiferous nature of gravel previously reported to be diamondiferous; and bulk sampling the paleochannel gravels away from known diamond-bearing points to establish the continuation of diamondiferous gravels. Although test bulk sampling is at a very early stage, the work has suggested that at least two different drainage systems were active in the area: a low energy, poorly sorted gravel consisting of a sandy clay matrix with occasional subrounded to rounded pebbles. Cobble and boulder size material is completely absent. It is tentatively suggested that this may represent a younger post-Miocene erosional phase incised into older paleochannels; and a higher energy gravel containing rounded to subrounded pebbles, cobbles and occasional boulders. Weak sorting is possibly present. This material may represent the older Miocene paleodrainage channels Diamond recoveries so far have been from the higher energy channels, which may act as a guide to map out and distinguish between diamondiferous and non-diamondiferous channels. 7 diamonds were recovered weighing between 0.35 carats and 1.60 carats. The work program described in this report was successful in identifying paleochannel development over a strike of approximately 1.5 kilometres. April 30, 2002 A first phase exploration program initiated to examine the diamondiferous nature of basal gravels previously reported from this location and consisted of the following: mobilization of the treatment plant to the Goubees project area; commissioning of the plant to successfully recover all heavy material, including diamonds, without loss of product; establish the diamondiferous nature of gravel previously reported to be diamondiferous; and bulk sampling the paleochannel gravels away from known diamond-bearing points to establish the continuation of diamondiferous gravels. Although test bulk sampling is at a very early stage, the work has suggested that at least two different drainage systems were active in the area: a low energy, poorly sorted gravel consisting of a sandy clay matrix with occasional subrounded to rounded pebbles. Cobble and boulder size material is completely absent. It is tentatively suggested that this may represent a younger post-Miocene erosional phase incised into older paleochannels; and a higher energy gravel containing rounded to subrounded pebbles, cobbles and occasional boulders. Weak sorting is possibly present. This material may represent the older Miocene paleodrainage channels Diamond recoveries so far have been from the higher energy channels, which may act as a guide to map out and distinguish between diamondiferous and non-diamondiferous channels. 7 diamonds were recovered weighing between 0.35 carats and 1.60 carats. The work program described in this report was successful in identifying paleochannel development over a strike of approximately 1.5 kilometres.  April 19, 2002 Superior Mining has released results from a first phase exploration program on its Goubees property in Namaqualand, South Africa.The paleodrainage system was found to be diamondiferous in three locations with diamonds occurring within basal gravel conglomerates, probably of Miocene age. The gravel horizon varied in thickness between 0.5 and 1.5 m. Younger north-south trending flood channels were identified at two locations, which dissected the northeast trending older channels. The work program was successful in identifying paleochannel development over a strike of approximately 1.5 km. A total of 7 diamonds ranging from 0.35 to 1.60 carats were recovered. |
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