...S. Höhn; H.E. Frimmel; T. Will; N. Brodtmann; W. Price Abstract The Koeris Formation in the Mesoproterozoic Aggeneys-Gamsberg ore district (South Africa) is located in the hanging wall of an unconformity, only metres above the giant Gamsberg and Big Syncline Pb-Zn ore deposits and potentially...

... of the major deposits of the Aggeneys-Gamsberg ore district, near the mining town of Aggeneys. B) Location of the district in the northwest of South Africa. The Swartberg deposit ( Fig. 2 ) comprises several mineralized units, all of which are folded by a recumbent isoclinal syncline and refolded...

...), 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...

...J.F.A. DIENER Abstract The Aggeneys terrane is a central part of the western Namaqua Metamorphic Complex (NMC) that is most renowned for hosting world-class massive sulphide mineralisation. Peak metamorphism reached upper amphibolite facies conditions, in contrast to the granulite facies conditions...

...W.P. COLLISTON; A.E. SCHOCH; H.E. PRAEKELT Abstract The stratigraphy of the Aggeneys Terrane is discussed, one of at least eleven tectono-stratigraphic terranes of the Namaqua mobile belt. The severe deformation of the region caused isoclinal folding, structural duplications and excisions...

... concerning the age and deposition of the Bushmanland Group and the age of the Aggeneys Granite Suite ( Bailie et al ., 2007a ; b ). We welcome the debate around the geological significance of the analytical results but note that this can vary according to the stratigraphic/structural models that themselves...

... sequences in the Aggeneys Hills Duplex, Namaqua Metamorphic Complex . South African Journal of Geology , 106 , 343 – 360 Colliston , W.P. and Schoch , A.E. ( 2000 ). Mid-Proterozoic tectonic evolution along the Orange River on the border between South Africa and Namibia...

... Hill-type Pb-Zn-Cu-Ag deposits at Aggeneys. Geochemical, U-Pb SHRIMP zircon geochronology and Sm-Nd isotopic determinations of the metasediments at Aggeneys were undertaken to determine the age and nature of the provenance, as well as to confine the age of deposition of the Bushmanland Group...

...Russell Bailie; Richard Armstrong; David Reid Abstract The central Bushmanland portion of the Namaqua Province of South Africa is underlain by three voluminous suites of granitic gneisses, termed the Achab, Hoogoor and Aroams Gneisses, in the Aggeneys District, the site of major world-class Broken...

...Michael D. McMillan Shortly after the signing Ryan and McMillan travelled to Aggeneys to site the first two boreholes and later we were to meet again on site to log the borehole core and what excitement we had on that occasion! References Alchin , D.J. , Frimmel , H.E...

...R.H. Bailie; D.L. Reid Abstract The Broken Hill-type Ph-Zn-Cu-Ag massive sulphide mineralisation at Aggeneys in the Northern Cape Province, South Africa has been subjected to peak metamorphic temperatures ranging between 670 to 690°C and pressures between 3.4 and 4.5 kbar. Due to the Ag and Bi rich...

...W. P. Colliston; A. E. Schoch Abstract The western part of the Mid-Proterozoic Namaqua mobile belt consists of a series of tectonostratigraphic terranes, including the Aggeneys terrane. In the centre of the Aggeneys terrane occurs a duplex of five fold nappes, represented by the Aggeneys Hills. One...

...W.P. Colliston; A.E. Schoch Abstract The Aggeneys terrane is composed of gneisses, supracrustal sequences and Broken Hill type base metal sulphide deposits that have been intensely deformed and metamorphosed to upper amphibolite grade. This terrane forms part of the Namaqua metamorphic complex...

... on previously reported detrital zircon data ( Cornell et al., 2009a , b ). The 1 175 ± 15 Ma age of the aplite sills is within error of the dates for the Achab Gneiss (1 163 ± 11 Ma) and the Hoogoor Gneiss (1 149 ± 15 Ma) which were grouped in the Aggeneys Suite by Cornell et al. ( 2009a ) and references...