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Rashoop Granophyre Suite

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Journal Article

A long-lived hydrothermal system in Bushveld granites at the Zaaiplaats tin mine; lead isotope evidence Available to Purchase

N. J. McNaughton, P. J. Pollard, D. I. Groves, R. G. Taylor
Journal: Economic Geology
Published: 01 February 1993
Economic Geology (1993) 88 (1): 27–43.
DOI: https://doi.org/10.2113/gsecongeo.88.1.27
...N. J. McNaughton; P. J. Pollard; D. I. Groves; R. G. Taylor Abstract Tin mineralization at Zaaiplaats is hosted in alkali feldspar granites of the Lebowa Granite Suite which intrude the Rashoop Granophyre Suite. From the upper contact downward, the alkali feldspar granites include the marginal...
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Journal Article

Polymetallic mineralization in the granites of the Bushveld Complex – examples from the central southeastern lobe Available to Purchase

R.H. Bailie, L.J. Robb
Published: 01 December 2004
South African Journal of Geology (2004) 107 (4): 633–652.
DOI: https://doi.org/10.2113/gssajg.107.4.633
...R.H. Bailie; L.J. Robb Abstract Field mapping of a region in the central southeastern portion of the Bushveld Complex in an area underlain by granites of the Lebowa Granite Suite, granophyres of the Rashoop Granophyre Suite, the Rooiberg Group and Transvaal Supergroup has identified at least four...
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View PDF for article title, Polymetallic mineralization in the granites of the Bushveld Complex – examples from the central southeastern lobe
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Journal Article

Petrographic and geochemical evolution of pervasively altered Bushveld granites at the Zaaiplaats tin mine Available to Purchase

P. J. Pollard, R. G. Taylor, R. P. Taylor, David I. Groves
Journal: Economic Geology
Published: 01 November 1991
Economic Geology (1991) 86 (7): 1401–1433.
DOI: https://doi.org/10.2113/gsecongeo.86.7.1401
...P. J. Pollard; R. G. Taylor; R. P. Taylor; David I. Groves Abstract Tin with associated tungsten and rare earth element mineralization at the Zaaiplaats mine is hosted by alkali feldspar granites of the Lebowa Granite Suite which intrude granophyric granites of the Rashoop Granophyre Suite. From...
View PDF for article title, Petrographic and geochemical evolution of pervasively altered Bushveld granites at the Zaaiplaats tin mine
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Journal Article

Lithostratigraphy of the Palaeoproterozoic Verena Granite Available to Purchase

F. Roelofse, H. de Bruiyn, D. Cornell, M. Kristofferson
Published: 01 March 2020
South African Journal of Geology (2020) 123 (1): 117–128.
DOI: https://doi.org/10.25131/sajg.123.0007
... and is intrusive into the Rooiberg Group, the Rashoop Granophyre Suite and the Klipkloof Granite. It is in turn intruded by the Makhutso Granite, the youngest known granite of the Lebowa Granite Suite. The Verena Granite is characterised by its coarse to very coarse-grained nature, its pinkish to reddish colours...
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View PDF for article title, Lithostratigraphy of the Palaeoproterozoic Verena Granite
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Schematic geological cross section across the Groenfontein tin mine from the Rashoop Granophyre Suite towards the Nebo Granite (southwest to northeast), along line A – A’ in Figure 2. Modified after Vonopartis et al. (2020).

Schematic geological cross section across the Groenfontein tin mine from th... Available to Purchase

Published: 01 March 2022
Figure 3. Schematic geological cross section across the Groenfontein tin mine from the Rashoop Granophyre Suite towards the Nebo Granite (southwest to northeast), along line A – A’ in Figure 2 . Modified after Vonopartis et al. ( 2020 ).
Image
 (a) Generalized tectonic and geological overview of the western part of the Bushveld Complex. Stratigraphic units: AI, alkaline intrusion; LGS, Lebowa Granite Suite; RGS, Rashoop Granophyre Suite; RLS, Rustenburg Layered Suite; RG, Rooiberg Group; TS, Transvaal sequence. (b) Simplified geological map of southwestern zone near Rustenburg with the location of the Impala Mine.

( a ) Generalized tectonic and geological overview of the western part of t... Available to Purchase

Published: 01 May 2004
Fig. 1.  ( a ) Generalized tectonic and geological overview of the western part of the Bushveld Complex. Stratigraphic units: AI, alkaline intrusion; LGS, Lebowa Granite Suite; RGS, Rashoop Granophyre Suite; RLS, Rustenburg Layered Suite; RG, Rooiberg Group; TS, Transvaal sequence. ( b
Journal Article

Combined satellite and portable XRF exploration mapping of the Zaaiplaats tin field, South Africa Available to Purchase

L.C. Vonopartis, R. Booysen, P.A.M. Nex, J.A. Kinnaird, L.J. Robb
Published: 01 March 2022
South African Journal of Geology (2022) 125 (1): 45–60.
DOI: https://doi.org/10.25131/sajg.125.0006
...Figure 3. Schematic geological cross section across the Groenfontein tin mine from the Rashoop Granophyre Suite towards the Nebo Granite (southwest to northeast), along line A – A’ in Figure 2 . Modified after Vonopartis et al. ( 2020 ). ...
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View PDF for article title, Combined satellite and portable XRF exploration mapping of the Zaaiplaats tin field, South Africa
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Journal Article

Exploration geophysics of the Bushveld Complex in South Africa Available to Purchase

Geoff Campbell
Journal: The Leading Edge
Published: 01 June 2011
The Leading Edge (2011) 30 (6): 622–638.
DOI: https://doi.org/10.1190/1.3599148
...Geoff Campbell Abstract The Bushveld Complex consists of three roughly coeval components, namely the Lebowa Granite Suite, the Rashoop Granophyre, and the Rustenburrg Layered Suite (RLS), the latter being the only economically important unit. The RLS underlies an area of ∼65,000 km 2...
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View PDF for article title, Exploration geophysics of the Bushveld Complex in South Africa
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Journal Article

A LA-ICP-MS AND SHRIMP U/PB AGE CONSTRAINT ON THE TIMING OF REE MINERALISATION ASSOCIATED WITH BUSHVELD GRANITES Available to Purchase

I.S. BUICK, C. LANA, C. GREGORY
Published: 01 March 2011
South African Journal of Geology (2011) 114 (1): 1–14.
DOI: https://doi.org/10.2113/gssajg.114.1.1
... and Bushveld-age granites. Table 1. A summary of available geochronological constraints from the Bushveld Complex, Rooiberg Group and Rashoop Granophyre Suite. Rock Unit Age (Ma) Mineral Method Reference RLS = Rustenburg Layered Suite LGS = Lebowa Granite Suite...
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View PDF for article title, A LA-ICP-MS AND SHRIMP U/PB AGE CONSTRAINT ON THE TIMING OF REE MINERALISATION ASSOCIATED WITH BUSHVELD GRANITES
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Location map of the Pilanesberg Alkaline Province, showing the local geology including the Transvaal Supergroup (TS), with an emphasis on its strata-bound igneous units (namely the Hekpoort Formation and the Machadodorp Member), and Bushveld Complex (BC) in the Transvaal sub-basin (TB). The location of borehole BB11, close to Carletonville, is indicated by a red disc. RLS=Rustenburg Layered Suite. The other Bushveld Complex units include the Rooiberg Group, the Rashoop Granophyre and the Lebowa Granite. The Pilanesberg dyke swarm location is from Elburg and Cawthorn (2017). The inset in the lower right corner shows the Kaapvaal Craton boundaries and preserved extent of the TS mainly distributed within two sub-basins, the TB and the Griqualand West sub-basin (GWB). Compiled from 1:250000 scale South African geological maps (i.e., maps 2228, 2230, 2326, 2228, 2330, 2426, 2428, 2430, 2526, 2528, 2530, 2626, 2628, 2630).

Location map of the Pilanesberg Alkaline Province, showing the local geolog... Available to Purchase

Published: 10 November 2020
). The location of borehole BB11, close to Carletonville, is indicated by a red disc. RLS=Rustenburg Layered Suite. The other Bushveld Complex units include the Rooiberg Group, the Rashoop Granophyre and the Lebowa Granite. The Pilanesberg dyke swarm location is from Elburg and Cawthorn ( 2017 ). The inset
Image
Distribution of the outcrops of the Transvaal Supergroup with the Hekpoort Formation (2236Ma; Cornell et al., 1996) within the Transvaal sub-basin (TB). The Bushveld Complex (BC), ca. 2054 Ma (Zeh et al., 2015), units include the volcanic Rooiberg Group, and the extrusive Rashoop Granophyre and Lebowa Granite suites. The location of the Griqualand West sub-basin (GWB) and the Ongeluk Formation (2426Ma; Gumsley et al., 2017) within the Kaapvaal Craton is shown in the inset. The red rectangles along the Hekpoort outcrops represent areas corresponding to the stratigraphic columns in Figure 2; namely, southwest to northeast, the Potchefstroom syncline, the Fochville monocline and the Mooikloof monocline. The dashed rectangle shows the location of outcrops between the type locality of Hekpoort and Broederstroom towards the northeast. All compiled from 1:250000 South African geological maps (i.e., maps 2228, 2230, 2326, 2228, 2330, 2426, 2428, 2430, 2526, 2528, 2530, 2626, 2628, 2630) and literature (op. cit.).

Distribution of the outcrops of the Transvaal Supergroup with the Hekpoort ... Available to Purchase

Published: 01 December 2020
Granophyre and Lebowa Granite suites. The location of the Griqualand West sub-basin (GWB) and the Ongeluk Formation (2426Ma; Gumsley et al., 2017 ) within the Kaapvaal Craton is shown in the inset. The red rectangles along the Hekpoort outcrops represent areas corresponding to the stratigraphic columns
Image
A. Generalized geologic map of the Bushveld Complex (BC) showing the position of the Merensky reef (white dashed line) and sample location (star). Map modified from Kinnaird et al. (2005) with additional features from Webb et al. (2004) and Vorster (2003). Major faults and fault segments related to the transpressional Thabazimbi-Murchison lineament (TML) are indicated from Good and de Wit (1997). B. Cross section of the Bushveld Complex based on gravity modeling of Webb et al. (2004) at ~25°S latitude, showing the connection at depth of the eastern and western limbs of the Rustenburg Layered Suite and overlying Lebowa granites, Rashoop granophyres, and Rooiberg Group volcanics (combined into a single unit in the cross section) (adapted from Webb et al., 2004). C. Simplified stratigraphic section showing the major subdivisions of the layered mafic-ultramafic rocks (Rustenburg Layered Suite), the position of the platiniferous Merensky reef near the top of the Critical zone, and the approximate positions of major chromitite horizons (LG = Lower Group, MG = Middle Group, UG = Upper Group) in the Critical zone and major magnetite horizons in the Upper zone (MML = main magnetite layer, M = magnetite horizon) (adapted from Li et al., 2001).

A. Generalized geologic map of the Bushveld Complex (BC) showing the positi... Available to Purchase

Published: 01 May 2008
of the Rustenburg Layered Suite and overlying Lebowa granites, Rashoop granophyres, and Rooiberg Group volcanics (combined into a single unit in the cross section) (adapted from Webb et al., 2004 ). C. Simplified stratigraphic section showing the major subdivisions of the layered mafic-ultramafic rocks (Rustenburg
Journal Article

Uncovering the southern Bushveld Complex, using reflection seismic and gravity data Available to Purchase

S.E. Scheiber-Enslin, S.J. Webb, M. Manzi
Published: 01 December 2024
South African Journal of Geology (2024) 127 (4): 731–748.
DOI: https://doi.org/10.25131/sajg.127.0040
... by younger sedimentary rocks. Stratigraphically, the Bushveld Complex is broken into the mafic Rustenburg Layered Suite and acidic Lebowa Granite, Rashoop Granophyre, and Rooiberg Volcanic suites (Figure 1). The Rustenburg Layered Suite in turn is divided into the Upper, Main, Critical, Lower, and Marginal...
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Large-scale liquid immiscibility at the top of the Bushveld Complex, South Africa Available to Purchase

J.A. VanTongeren, E.A. Mathez
Journal: Geology
Published: 01 June 2012
Geology (2012) 40 (6): 491–494.
DOI: https://doi.org/10.1130/G32980.1
... and a buoyant Si-rich magma to form the upper part of the sequence is best able to explain the observations. In addition, the phases in the upper siliceous cap of the Bushveld Complex are in major and trace element equilibrium with portions of the overlying Rooiberg rhyolites and/or Rashoop granophyres...
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Journal Article

PRECISE AGE OF THE PLATINIFEROUS MERENSKY REEF, BUSHVELD COMPLEX, SOUTH AFRICA, BY THE U-Pb ZIRCON CHEMICAL ABRASION ID-TIMS TECHNIQUE Available to Purchase

James S. Scoates, Richard M. Friedman
Journal: Economic Geology
Published: 01 May 2008
Economic Geology (2008) 103 (3): 465–471.
DOI: https://doi.org/10.2113/gsecongeo.103.3.465
... of the Rustenburg Layered Suite and overlying Lebowa granites, Rashoop granophyres, and Rooiberg Group volcanics (combined into a single unit in the cross section) (adapted from Webb et al., 2004 ). C. Simplified stratigraphic section showing the major subdivisions of the layered mafic-ultramafic rocks (Rustenburg...
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View PDF for article title, PRECISE AGE OF THE PLATINIFEROUS MERENSKY REEF, BUSHVELD COMPLEX, SOUTH AFRICA, BY THE U-Pb ZIRCON CHEMICAL ABRASION ID-TIMS TECHNIQUE
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Journal Article

Rb-Sr and Nd-Sm isotopes in fluorite related to the granites of the Bushveld Complex Available to Purchase

Judith A. Kinnaird, F.J. Kruger, R.G. Cawthorn
Published: 01 September 2004
South African Journal of Geology (2004) 107 (3): 413–430.
DOI: https://doi.org/10.2113/107.3.413
..., and sills of the Rashoop Granophyre Suite. The granites post-date a 7 to 8km thick layered mafic and ultramafic Layered Suite (Figure 1 ), as shown by granite feeder dykes that cut the Layered Suite in the eastern limb of the Complex ( e.g. Hammerbeck, 1970 ; Walraven and Hattingh, 1993 ) and xenoliths...
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View PDF for article title, Rb-Sr and Nd-Sm isotopes in fluorite related to the granites of the Bushveld Complex
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Journal Article

Intrusion mechanisms of the southwestern Rustenburg Layered Suite as deduced from the Spruitfontein inlier Available to Purchase

B.M. Clarke, R. Uken, M.K. Watkeys
Published: 01 June 2000
South African Journal of Geology (2000) 103 (2): 120–127.
DOI: https://doi.org/10.2113/103.2.120
... ( Walraven, 1981 ; Eales and Cawthorn, 1996 ). Regional-scale RLS—country rock concordance is demonstrated by the similarity of dips (Figure 2 ). The roof of the complex is composed of Rooiberg Group rhyolites and granophyres of the Rashoop Granophyre Suite ( SACS, 1980 ; Eales and Cawthorn, 1996...
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View PDF for article title, Intrusion mechanisms of the southwestern Rustenburg Layered <span class="search-highlight">Suite</span> as deduced from the Spruitfontein inlier
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Journal Article

Isoferroplatinum-pyrrhotite-troilite intergrowth as evidence of desulfurization in the Merensky Reef at Rustenburg (western Bushveld Complex, South Africa) Available to Purchase

Alexander Kawohl, Hartwig E. Frimmel
Published: 01 October 2016
Mineralogical Magazine (2016) 80 (6): 1041–1053.
DOI: https://doi.org/10.1180/minmag.2016.080.055
... is capped by the Rashoop Granophyre Suite. For detailed insights into the geology, stratigraphy and mineralization of the RLS, the reader is referred to Eales and Cawthorn (1996) , Lee (1996) , Cawthorn et al. (2005) , Kruger (2005) , Naldrett et al. (2011) and Maier et al. (2013) . Fig...
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Journal Article

Petrogenesis of the Marginal Sill Phase and Lower Zone in the Eastern Limb of the Bushveld Complex: Incremental development of igneous layering and syn-magmatic emplacement of peridotite intrusions and sills Available to Purchase

R.N. Scoon, A.A. Mitchell
Published: 01 December 2023
South African Journal of Geology (2023) 126 (4): 425–450.
DOI: https://doi.org/10.25131/sajg.126.0021
... ( Eriksson et al., 2006 ). We also do not recognise the Rashoop Granophyre Suite as a discrete entity as this is a misguided attempt by SACS ( 1980 ) at conflating granophyres of the Rooiberg Group and of the Lebowa Granite Suite into a single group. (They have different origins and different ages...
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View PDF for article title, Petrogenesis of the Marginal Sill Phase and Lower Zone in the Eastern Limb of the Bushveld Complex: Incremental development of igneous layering and syn-magmatic emplacement of peridotite intrusions and sills
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Journal Article

A High-Resolution Geochemical and Petrological Investigation of Bifurcating Chromitite Layers of the UG1 Footwall at Impala Platinum Mine, Rustenburg Available to Purchase

Frederick Roelofse, Justine Magson, Mariska Nicholson, Tshepo Nyakane
Published: 26 September 2024
The Canadian Journal of Mineralogy and Petrology (2024) 62 (5): 713–730.
DOI: https://doi.org/10.3749/2300068
... (PGE), vanadium, and fluorite ( Anhaeusser & Maske 1986 , Wilson & Anhaeusser 1998 , Johnson et al. 2006 ). It is stratigraphically subdivided into the Rustenburg Layered Suite, the Rashoop Granophyre Suite, and the Lebowa Granite Suite (LGS) ( Walraven & Hattingh 1993 , Walraven et...
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View PDF for article title, A High-Resolution Geochemical and Petrological Investigation of Bifurcating Chromitite Layers of the UG1 Footwall at Impala Platinum Mine, Rustenburg
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