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Abstract

The SAGA geophysical test site was established in 1995 in order to provide the<br>southern African geophysical community with a weil-characterized and<br>constrained site to be used for the calibration and testing of a wide varieiy of<br>geophysical equipment. A permanent grid, roughly 400 X 600 m, was laid Out<br>and surveyed in a gently sloping valley on the farm Roodekraal 454 JQ,<br>approximately 11 km southeast of Potchefstroom. The site is located in the<br>Roodekraal volcanic complex, a pre-Vredefort age complex (Le. > 2.0 Ga.), with<br>a variety of volcanic rocks. The copper mineralisation has been constrained by<br>drilling and appears to lie in lens shaped areas dominantly located in the<br>amygdaloidal units. The test site is located directly over one of these lenses.<br>The various volcanic units are expected to provide geophysically mappable<br>variations of physical properties and the mineralised zone should be a<br>challenging electrical target. To date a variety of geophysical data have been<br>collected and they show well defined anomalies, which should encourage the<br>further testing of a wide variety of equipment and collection of more data.

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/content/papers/10.3997/2214-4609-pdb.221.032
1999-09-28
2024-03-29
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