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Koperberg Suite

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Journal Article

Ascent and emplacement controls of mafic magmas in the mid crust − evidence from 3D modelling of basic bodies of the Koperberg Suite, Namaqualand

A. Bester, A. Kisters
Published: 01 December 2023
South African Journal of Geology (2023) 126 (4): 451–470.
DOI: https://doi.org/10.25131/sajg.126.0024
...A. Bester; A. Kisters Abstract The 3D modelling of basic bodies of the Koperberg Suite (1060 to 1030 Ma) and their wall rocks from Narrap Mine illustrates the distribution, geometries and, by implication, processes that determined the ascent and emplacement of the mantle-derived mafic magmas...
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Journal Article

Petrochemical and mineralogical relationships in the Koperberg Suite, Namaqualand, South Africa

Aylva E. Schoch, Johan A. Conradie
Published: 01 February 1990
American Mineralogist (1990) 75 (1-2): 27–36.
...Aylva E. Schoch; Johan A. Conradie Abstract The anorthositic to noritic Koperberg Suite is distinguished by a dispersed mode of occurrence and by primary copper sulfides. Petrographic variation is mainly caused by change in the relative proportions of three rock-forming minerals: andesine...
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( a ) Oblique view in Leapfrog of the <span class="search-highlight">Koperberg</span> <span class="search-highlight">Suite</span> intrusions of the Nar...

( a ) Oblique view in Leapfrog of the Koperberg Suite intrusions of the Nar...

Published: 01 December 2023
Figure 6. ( a ) Oblique view in Leapfrog of the Koperberg Suite intrusions of the Narrap Mine. The reference surface is that of the Springbok Quartzite as all the intrusions are situated within or above this unit. The grey lines represent borehole traces. ( b ) Insert: Diagram illustrating
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Intrusion breccias in the <span class="search-highlight">Koperberg</span> <span class="search-highlight">Suite</span>. Cognate xenoliths of (a) anort...

Intrusion breccias in the Koperberg Suite. Cognate xenoliths of (a) anort...

Published: 01 March 2017
Figure 6. Intrusion breccias in the Koperberg Suite. Cognate xenoliths of (a) anorthosite and biotite diorite in norite, fubilee Mine, and (b) anorthosite and biotite diorite in hypersthenite, 2,640 -ft level, CarolusbergMine (From Clifford and Barton, 2012) .
Journal Article

The geology of the Steenkampskraal monazite deposit, South Africa; implications for REE-Th-Cu mineralization in charnockite-granulite terranes

M. A. G. Andreoli, C. B. Smith, M. Watkeys, J. M. Moore, L. D. Ashwal, R. J. Hart
Journal: Economic Geology
Published: 01 August 1994
Economic Geology (1994) 89 (5): 994–1016.
DOI: https://doi.org/10.2113/gsecongeo.89.5.994
...-rich rocks (nelsonite) of the Koperberg Suite in the Okiep copper district. Although age of intrusion, Sm-Nd isotope systematics, and composition of the mineralization present clear differences for the two areas, the structural style and associated intrusive rocks of the Roodewal and Koperberg suites...
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New Insights into the Geology of the Namaqua Tectonic Province, South Africa, from Ion Probe Dating of Detrital and Metamorphic Zircon

Johann G. Raith, David H. Cornell, Hartwig E. Frimmel, Coenraad H. De Beer
Published: 01 May 2003
The Journal of Geology (2003) 111 (3): 347–366.
DOI: https://doi.org/10.1086/373973
... previously. Two major magmatic episodes have previously been recognized: at ∼1.2 Ga (Little Namaqualand Suite) and at 1.03–1.06 Ga (Spektakel and Koperberg Suites). In addition, we have dated another episode of bimodal felsic (Landplaas) and mafic (Oorkraal) plutonism at 1109 + 20 / − 19 Ma. With respect...
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Journal Article

REVIEW OF MESOPROTEROZOIC MAGMATISM, SEDIMENTATION AND TERRANE AMALGAMATION IN SOUTHWESTERN AFRICA

R. McG. MILLER
Published: 01 December 2012
South African Journal of Geology (2012) 115 (4): 417–448.
DOI: https://doi.org/10.2113/gssajg.115.4.417
... subjected to intense deformation, recumbent folding and thrusting between ~1.11 and ~1.07 Ga. Open, upright folding thereafter in these two terranes was accompanied by intrusions of the Spektakel and Koperberg Suites and granulite-facies metamorphism between ~1.06 and ~1.02 Ga. Pegmatites mark the final...
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Lithostratigraphy of the Khurisberg Subgroup and position of lit-par-lit gr...

Lithostratigraphy of the Khurisberg Subgroup and position of lit-par-lit gr...

Published: 01 March 2017
Figure 7. Lithostratigraphy of the Khurisberg Subgroup and position of lit-par-lit granitoid intrusions in the Okiep Copper District. The stratigraphie controls on the distribution of sills and dykes ofthe cupriferous mafic intrusive Koperberg Suite as well as past production, is illustrated
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Typical vertical cross sections of mined ore bodies showing the intrusive c...

Typical vertical cross sections of mined ore bodies showing the intrusive c...

Published: 01 March 2017
Figure 5. Typical vertical cross sections of mined ore bodies showing the intrusive cross-cutting relationships ofthe mafic bodies ofthe Koperberg Suite with the granitoid gneissic host rocks and structural control imposed by steep structures (Lombaard etal, 1986; Potgieter, 1996 ; Clifford
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Graph plotting the ratio between the intermediate and short axis (x-axis) v...

Graph plotting the ratio between the intermediate and short axis (x-axis) v...

Published: 01 December 2023
Figure 11. Graph plotting the ratio between the intermediate and short axis (x-axis) versus the ratio of the long and intermediate axis (y-axis) of the Koperberg Suite intrusive bodies. Data points distinguish (1) different compositions, and (2) the structural controls of basic bodies (central
Journal Article

PETROGENESIS OF CU-NI SULPHIDE ORES FROM O’OKIEP AND KLIPRAND, NAMAQUALAND, SOUTH AFRICA: CONSTRAINTS FROM CHALCOPHILE METAL CONTENTS

W.D. MAIER, M.A.G. ANDREOLI, D.I. GROVES, S.-J. BARNES
Published: 01 December 2012
South African Journal of Geology (2012) 115 (4): 499–514.
DOI: https://doi.org/10.2113/gssajg.115.4.499
... of the other localities the tenors are much lower, notably in the Ni rich ores from Ezelsfontein and Hondekloof. Editorial handling: S. Prevec. © 2012 Geological Society of South Africa 2012 For more than a century the predominantly mafic bodies of the Koperberg Suite were thought to occur...
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( a ) Geological sketch of western Namaqualand showing localities mentioned...

( a ) Geological sketch of western Namaqualand showing localities mentioned...

Published: 01 December 2012
Figure 1 ( a ) Geological sketch of western Namaqualand showing localities mentioned in the text (modified after Waters, 1989; Andreoli et al., 2006 ). Tectonic terranes are shown in variable shade, double dotted lines indicate clusters of Koperberg suite and related rocks, and solid lines show
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Schematic diagrams illustrating the effects of layers of different wall-roc...

Schematic diagrams illustrating the effects of layers of different wall-roc...

Published: 01 December 2023
Figure 12. Schematic diagrams illustrating the effects of layers of different wall-rock rigidity (E) on the geometries of basic bodies of the Koperberg Suite. Inferences of scenarios that have not been observed and modelled are from analogue models by Rivalta et al. ( 2005 ) and Brenner
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Sequence of events in the Bushmanland Terrane. Larger filled circles = U-...

Sequence of events in the Bushmanland Terrane. Larger filled circles = U-...

Published: 01 May 2003
et al. ( 1995 ; an anorthosite, KS Sm-Nd Koperberg Suite). Range of Sm-Nd chondrite uniform reservoir model ages from Clifford et al. ( 1995 ). W-Mo Re-Os molybdenite age from Raith and Stein ( 2000 ). Ages for central Bushmanland refer to a Sm-Nd whole rock (Reid et al. 1987 ) and Pb-Pb model ages
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Ni/S versus Cu/S (atomic) of sulfide-bearing rocks. Ni/S of Polaris sampl...

Ni/S versus Cu/S (atomic) of sulfide-bearing rocks. Ni/S of Polaris sampl...

Published: 13 December 2021
compositions of the Cu-rich Koperberg suite (grey circles). Compositions of sulfide melts equilibrated under open-system conditions ( Wohlgemuth-Ueberwasser et al . 2013 ) at log f (O 2 ) = FMQ–4 (small white circles) to FMQ (small black circles). Ni/S and Cu/S of immiscible sulfide melts at R factors of 10
Journal Article

Mesoproterozoic base metal sulphide deposits in the Namaqua Sector of the Namaqua-Natal Metamorphic Province, South Africa: a review

A. Rozendaal, T-K. Rudnick, R. Heyn
Published: 01 March 2017
South African Journal of Geology (2017) 120 (1): 153–186.
DOI: https://doi.org/10.25131/gssajg.120.1.153
...Figure 6. Intrusion breccias in the Koperberg Suite. Cognate xenoliths of (a) anorthosite and biotite diorite in norite, fubilee Mine, and (b) anorthosite and biotite diorite in hypersthenite, 2,640 -ft level, CarolusbergMine (From Clifford and Barton, 2012) . ...
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Journal Article

Metabasites along the amphibolite-granulite facies transition in the Okiep Copper District, South Africa

J.G. Raith, T. Meisel
Published: 01 March 2001
South African Journal of Geology (2001) 104 (1): 77–100.
DOI: https://doi.org/10.2113/104.1.77
... for this kind of metamorphism. Metabasites in the Okiep Copper District additionally attracted attention because important magmatic Cu deposits, associated with basic to intermediate plutonic rocks of the — 1.03 to 1.06 Ga Koperberg Suite ( Lombaard et al., 1986 ; Clifford et al., 1995 ; Gibson et al...
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Grenvillian massif-type anorthosites in the Sierras Pampeanas

C. Casquet, R.J. Pankhurst, C.W. Rapela, C. Galindo, J. Dahlquist, E. Baldo, J. Saavedra, J.M. González Casado, C.M. Fanning
Published: 01 January 2005
Journal of the Geological Society (2005) 162 (1): 9–12.
DOI: https://doi.org/10.1144/0016-764904-100
...) and Nain provinces are apparently older than 1150 Ma ( McLelland & Chiarenzelli 1990 ; Doig 1991 ), but those in the Oaxaquia terrane of southern Mexico (1012 ± 12 Ma, Keppie et al . 2003 ) and the Koperberg suite of the Natal–Namaqua belt of South Africa (1029 ± 10 Ma, Clifford et al . 1995...
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Evolution of the Namaqua terranes along section line EFGD ( Figure 1 ) base...

Evolution of the Namaqua terranes along section line EFGD ( Figure 1 ) base...

Published: 01 December 2012
in the Bushmanland Terrane; intrusion between ~1.06 and ~1.03 Ga of the granitic Spektakel Suite and then the heterogeneous Koperberg Suites in the Bushmanland Terrane, the latter up the steep structures; possible delamination of the subduction zone beneath the Garies Terrane, mantle upwelling leading to ultra-high
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Evolution of the Sinclair-Namaqua Provinces along section line ABCD ( Figur...

Evolution of the Sinclair-Namaqua Provinces along section line ABCD ( Figur...

Published: 01 December 2012
-collision or post-unroofing intrusion of the ~1.07 Ga Bloukop granite in the Garies Terrane; upright F 3 periclinal folds, approximately co-axial F 4 steep structures in the Bushmanland Terrane; intrusion between ~1.06 and ~1.03 Ga of the granitic Spektakel Suite and then the heterogeneous Koperberg