... was likely derived from the rapidly-exhumed 1.2 to 1.0 Ga Namaqua-Natal orogenic belt on the craton’s margin that formed during Rodinia supercontinent assembly’. Figure 5. Concordia diagram for Hotson Formation schist sample DC1321 from Black Mountain mine. Two alternative age interpretations...

... in Namibia, a new shaft and decline at Aggeneys to exploit the Broken Hill deep orebody, and the blending of ore from Swartberg and Gamsberg into the Aggeneys run of mine. As a consequence of new research results and timely reviews being presented at the Geocongress held in Windhoek during July 2002...

... grade metamorphism and polyphase deformation. It is the host to world class base metal sulphide resources that have been mined for more than a century. Most of these mines are no longer in production such that the Cu-Pb-Zn-Ag mines in the Aggeneys-Gamsberg Ore District (A-GOD), with a total output...

...), which is an Environmental Mapping and Analysis Program. The Aggeneys Cu-Pb-Zn deposit, situated in the arid north western part of South Africa, represents a unique field laboratory for testing these new tools. Here spaceborne hyperspectral data covering the Swartberg, Big Syncline and Gamsberg area were...

...Figure 1. The names of various inselbergs around Aggeneys. The inset shows the locality of the Aggeneys mining district within the Mesoproterozoic Namaqua-Natal mobile belt of South Africa. ...

...W.J. Nel; W.P. Colliston Abstract Most of the deformed amphibolite-grade lithological units of the eastern Aggeneys Terrane are traditionally regarded as correlatives of the Wortel Formation of the Aggeneys Subgroup in the Bushmanland Group. Recent structural-stratigraphic mapping in the eastern...

...Figure 3. Stratigraphic column at the Broken Hill Mine, Aggeneys. Due to overturning the units have names based on the structural succession found at the mine (modified after Lipson, 1990 and McClung, 2006 ). ...

... was associated with a quartzite unit that outcropped intermittently on farms between Springbok and Aggeneys. It also played an important role in the mineralisation in the O’kiep Copper Company’s mines. Gossan samples at Aggeneys returned as much as 4.8% Cu, 6.8% Pb and 0.15% Zn. During the field work...

... to the Broken Hill Mine. Consequently we used Lipson’s (1990) terminology as this was/is used at the mine and related directly to the succession there ( Bailie et al ., 2007a , pp. 62–63). We noted (in the abstract and summary, p. 83) that the ages obtained relate to the Bushmanland Group in the Aggeneys...