 | Klemd, Reiner, Beinlich, Andreas, Kern, Matti, Junge, Malte, Martin, Laure, Regelous, Marcel, Schouwstra, Robert (2020) Magmatic PGE Sulphide Mineralization in Clinopyroxenite from the Platreef, Bushveld Complex, South Africa. Minerals, 10 (6) 570 doi:10.3390/min10060570 | Journal (article/letter/editorial) | | Clinopyroxenite from the Platreef, Bushveld Complex, South Africa Reiner Klemd 1 , Andreas Beinlich 2, * , Matti...Engineering, University of Cape Town; Rondebosch 7103, South Africa; robertschouwstra5@gmail.com Department of Geology...University of the Free State, Bloemfontein 9301, South Africa Correspondence: andreas.beinlich@uib.no Received:...the northern limb of the Bushveld Complex in South Africa, hosts platinum-group element (PGE) mineralization...whereas magmatic δ34 S values suggest the absence of local crustal contamination during emplacement. This is |  | | Journal (article/letter/editorial) | | possible new alluvial diamond field related to the Klipspringer kimberlite swarm, South Africa T.S. McCarthy...Geological Society of South Africa ABSTRACT The Marsfontein M-1 kimberlite pipe in the Mokopane (Potgietersrus)...highest grade kimberlite ever mined in southern Africa, and forms part of an extensive east-northeast...by the Zebediela fault, which passes immediately south of the kimberlite swarm. Material eroded from the...the vicinity of the swarm was deposited south of the fault, burying down-faulted Karoo Supergroup rocks |  | | Journal (article/letter/editorial) | | Tracking sources of selected diamonds from Southern Africa based on carbon isotopic and chemical impurities...Research Institute, Nelson Mandela University, South Africa Deutsches GeoForschungsZentrum GFZ, Telegrafenberg...University, South Africa e-mail: Maarten.DeWit@mandela.ac.za © 2017 September Geological Society of South Africa...and the Swartruggens and Klipspringer kimberlitic deposits from South Africa, and micro-sized diamonds...diamonds from the Klipspringer and Premier kimberlite intrusions in South Africa. Type IaAB diamonds are found |  | | Journal (article/letter/editorial) | | their sulfide inclusions from the late Jurassic Klipspringer kimberlites K.J. Westerlund Department of Geological...of Cape Town, Private Bag, Rondebosch 7701, South Africa e-mail: kjw@geology.uct.ac.za J.J. Gurney Department...of Cape Town, Private Bag, Rondebosch 7701, South Africa e-mail: jjg@geology.uct.ac.za R.W. Carlson...Rondebosch 7701, South Africa e-mail: shr@geology.uct.ac.za © 2004 Geological Society of South Africa ABSTRACT...ABSTRACT The majority of the Klipspringer eclogitic diamonds display complex crystal zonation with zones of |  | Tanner, Dominique, McDonald, Iain, Harmer, R.E. Jock, Muir, Duncan D., Hughes, Hannah S.R. (2019) A record of assimilation preserved by exotic minerals in the lowermost platinum-group element deposit of the Bushveld Complex: The Volspruit Sulphide Zone. Lithos, 324. 584-608 doi:10.1016/j.lithos.2018.10.032 | Journal (article/letter/editorial) | | Rhodes University, P.O. Box 94, Grahamstown, South Africa, 6140. 4 Camborne School of Mines, College...University of the Witwatersrand, Private Bag 3, Wits, South Africa, ED 5 Corresponding author: Dominique Tanner...opportunity for PGE mineralisation higher up in the local magmatic stratigraphy, AC or in later magma emplacement...Rustenburg Layered Suite has been described at the Waterberg project (Huthmann et al., 2018; Kinnaird et al...eastern limb (Wilson, 2015) and subzones within the Waterberg project (Kinnaird et al., 2017). The stratigraphic |  | | Journal (article/letter/editorial) | | absorption analysis of diamonds from the Klipspringer kimberlites, South Africa K.J. Westerlund Department of Geological...of Cape Town, Private Bag, Rondebosch 7701, South Africa e-mail: kjw@geology.uct.ac.za J.J. Gurney Department...Rondebosch 7701, South Africa e-mail: jjg@geology.uct.ac.za © 2004 Geological Society of South Africa ABSTRACT...diamonds associated with the 148 Ma Group II Klipspringer kimberlite dyke system emplaced on the Thabazimbi-Murchison...analysis of diamond plates demonstrates complex intergrowth of N-rich and N-poor diamond. Two groups |  | | Journal (article/letter/editorial) | | selected Group II kimberlite dyke arrays in South Africa: implications for kimberlite emplacement mechanisms...gviola@geology.uct.ac.za © 2003 Geological Society of South Africa ABSTRACT Group II kimberlite dykes occur in...fracture cleavage ahead of the dyke tip (imparting a local suction) and the low-volume, low-viscosity, highly... typified by those in the Kimberley area of South Africa, currently command greater attention in exploration...distribution of intrusion ages, e.g. across South Africa (le Roex, 1986; Skinner et al., 1992) and eastern |  | | Journal (article/letter/editorial) | | e g e o r ev Kimberlite-hosted diamond deposits of southern Africa: A review Matthew Field a,⁎, Johann...Southdale, 2135, South Africa c De Beers Group Services, PO Box 47, Kimberley, South Africa d De Beers Canada...April 2008 Keywords: Diamond Kimberlite Diatreme Pipe Dyke Mantle-xenolith Diamond-inclusion A B S T R...discovery of diamonds in river deposits in central South Africa in the mid nineteenth century, it was at Kimberley...economic and industrial development of southern Africa. Following the discoveries at Kimberley, even more |  | Smith, Chris B., Pearson, D. Graham, Bulanova, Galina P., Beard, Andrew D., Carlson, Richard W., Wittig, Nadine, Sims, Keith, Chimuka, Lovemore, Muchemwa, Ellah (2009) Extremely depleted lithospheric mantle and diamonds beneath the southern Zimbabwe Craton. Lithos, 112. 1120-1132 doi:10.1016/j.lithos.2009.05.013 | Journal (article/letter/editorial) | | Tinto Mining and Exploration, Johannesburg, South Africa g Murowa Diamonds, Harare, Zimbabwe b c a r...Keywords: Lithospheric mantle Peridotite xenoliths Diamond Kimberlite macrocrysts Zimbabwe a b s t r a c...low Ca, high Cr garnet. Sulphide inclusions in diamond produce minimum TRD model ages of 3.4 Ga indicating...Mwenezi and Chingwizi pipes which intrude the Limpopo Mobile Belt show strongly depleted peridotitic...of a deep lithospheric mantle keel beneath the Limpopo Mobile Belt today and Re–Os analyses of peridotite |  | GSILVER, P, BEHN, M, KELLEY, K, SCHMITZ, M, SAVAGE, B (2006) Understanding cratonic flood basalts. Earth and Planetary Science Letters, 245 (1) 190-201 doi:10.1016/j.epsl.2006.01.050 | Journal (article/letter/editorial) | | more puzzling than cratonic areas such as southern Africa or the Siberian craton, where strong, thick lithosphere...associated with lithospheric thinning. In southern Africa, however, there are severe problems with both of...North America, or the Ventersdorp Rift of southern Africa. Their occurrence is not predicted by plate tectonics...uplift following delamination. Cratonic southern Africa represents a particularly stringent test of these...continental basalts in the Precambrian of southern Africa, and thanks to the results from the recent Kaapvaal |  | | Journal (article/letter/editorial) | | CRATONIC DIAMOND AND LITHOSPHERE EVOLUTION: CONSTRAINTS ON PRECAMBRIAN TECTONICS AND DIAMOND EXPLORATION...of Cape Town, Rondebosch, 7700, Republic of South Africa Abstract Ages of syngenetic inclusions of peridotitic...eclogitic (E-type) minerals in diamond show that episodes of diamond formation in the subcontinental...geological record. The first major lithospheric diamond-forming episode at ca. 3.5 to 3.2 Ga closely followed...produced P-type diamond associated with G-10 garnet-bearing harzburgite. The oldest E-type diamond-forming events |  | | Book | | Diamond Geology Published on www.debeersgroup.com Index A) Classification and genetic models B) Exploration...Sample Treatment D) World Production E) South African Diamond Occurrences 1. Large Kimberlite Mines 1...Koffiefontein 2. Smaller mineralised kimberlites in South Africa 2.1 The Oaks 2.2 The Zebediela Kimberlites 2...Terms Diamond Geology Page 2 www.debeersgroup.com A) CLASSIFICATION AND GENETIC MODELS Diamond deposits... their relative production contributions in South Africa were, primary (kimberlite) 8.63 million carats |  | | Journal (article/letter/editorial) | | of Cape Town, Rondebosch, 7700, Republic of South Africa of Geological Sciences and Geological Engineering...formation event documented on the world’s major diamond producing cratons occurs in Archean lithospheric...diamonds, G10 garnets, and diamond inclusion-type chromites, well used in diamond exploration. Within the...mantle domains of diamond stability, there have been repeated episodes of further diamond crystallization...peridotite. Using improved methods of isotope analysis, diamond formation ages can be correlated with specific |  | | Journal (issue) | | GEARED FOR FUTURE SUCCESS P4 MINING IN SOUTHERN AFRICA BIG INVESTMENTS, BIG CHANGES P18 COMMODITY FOCUS...at large, Tebello Chabana, Minerals Council South Africa senior executive: public affairs and transformation...MINING IN SOUTHERN AFRICA Issue 5 | 2021 www.miningreview.com 18 MINING REVIEW AFRICA | ISSUE 5 – 2021...FOR FUTURE SUCCESS 24 P4 MINING IN SOUTHERN AFRICA BIG INVESTMENTS, BIG CHANGES P18 COMMODITY FOCUS...at large, Tebello Chabana, Minerals Council South Africa senior executive: public affairs and transformation |  | | Journal (article/letter/editorial) | | 6140, South Africa. e-mail: andy.moore@info.bw © 2009 March Geological Society of South Africa ABSTRACT...stones represent a third and hitherto unrecognised diamond paragenesis. Their isotopic signature is closely...fugacities between the WM and IW, would be in the diamond P-T-fO2 stability field. The low N concentrations...largest gem diamond ever found, the 3106 Cullinan, recovered from the Premier Mine, South Africa (Williams...this locality having the world’s highest average diamond value ($2500/ct) for a kimberlite, and being the |  | | Journal (article/letter/editorial) | | Town, Private Bag Rondebosch, 7701 Cape Town, South Africa Received 27 June 2003; accepted 17 February...syn-dilational crystallization of vein minerals in local tensional areas within the kimberlite. Vein Types...fracture systems in South Africa (Fig. 1; Star, Helam/Swartruggens, Klipspringer) and in opencast workings...associated with the Marsfontein pipe on the Klipspringer system) provide exceptional access to structural...observation, extraction of orientation data from mine maps and by taking oriented samples. Detailed, oriented |  | | Journal (article/letter/editorial) | | University of the Witwatersrand, Johannesburg, 2050, South Africa a r t i c l e i n f o Article history: Received...terranes (Witwatersrand Block, Pietersburg Block, Limpopo Belt Central Zone and Zimbabwe Craton) between...(a) Position of the Kalahari Craton in southern Africa. (b) Main units and important terrane boundaries...mantle at 150 km depth (James et al., 2001), and of diamond-bearing kimberlites (with age of emplacement)....of the BC, and one from the western limb at Union mine (Fig. 1c), covering the Marginal, Lower Critical |  | | Journal (article/letter/editorial) | | the Precambrian mantle lithosphere of southern Africa Steven B. Shirey Department of Terrestrial Magnetism...Sciences, University of Cape Town Rondebosch 7701, South Africa, e-mail: shr@geology.uct.ac.za Jeffrey W. Harris...Geological Society of South Africa ABSTRACT Two decades of diamond research in southern Africa allow the age...the diamond stability field (150 to 225km). Silicate inclusions in diamonds and their host diamond compositions...eclogitic versus peridotitic silicate inclusions in diamond, a greater incidence of younger Sm-Nd ages of silicate |  | | Journal (article/letter/editorial) | | elsevier.com/locate/lithos Integrated models of diamond formation and craton evolution Steven B. Shirey...Sciences, University of Cape Town, Rondebosch 7701, South Africa c Division of Earth Sciences, University of...online Abstract Two decades of diamond research in southern Africa allow the age, average N content...the diamond stability field (150 – 225 km). Silicate inclusions in diamonds and their host diamond compositions...eclogitic vs. peridotitic silicate inclusions in diamond, a greater incidence of younger Sm – Nd ages of |  | | Journal (article/letter/editorial) | | Lister d a De Beers Exploration, Johannesburg, South Africa SRK Consulting, Vancouver, Canada c School of...source region for the Group 2 kimberlites in South Africa (metasomatised mantle lithosphere peridotite...and temporal data for kimberlites from Southern Africa are compared with the lithosphere anisotropy and...between 360 Ma and 250 Ma worldwide. In Southern Africa a quiescent period is evident between 500 Ma and...an overview of available age data using Southern Africa as an example. The database comprises 195 occurrences |  | | Journal (article/letter/editorial) | | corridors of kimberlites and related rocks of Southern Africa Hielke A. Jelsma CIGCES, Department of Geological...Sciences, University of Cape Town, Rondebosch 7701, South Africa De Beers Exploration Division, GeoScience Centre...Centre, PO Box 82232, Southdale 2135, South Africa Corresponding author: e-mail: hielke.jelsma@debeersgroup...Sciences, University of Cape Town, Rondebosch 7701, South Africa e-mail: maarten@cigces.uct.ac.za Christien...Sciences, University of Cape Town, Rondebosch 7701, South Africa e-mail: christie@cigces.uct.ac.za Paul H.G |  | | Journal (article/letter/editorial) | | com/locate/lithos Kimberlites of the Man craton, West Africa E.M.W. Skinner a,*, D.B. Apter b, C. Morelli b...Rhodes University, Grahamstown 6140, South Africa b DeBeers, South Africa c Mano River Resources, Canada Received...craton in West Africa is an Archaean craton formerly joined to the Guyana craton (South America) that...Introduction The kimberlites of the Man craton West Africa (Fig. 1) include concentrations of kimberlites...similarly aged Group II kimberlites in Southern Africa (Skinner et al., 1992). A hot spot model for these |  | Steenekamp, J.M.A., van der Westhuizen, W.A., Bateman, M.D., Jacobson, L., Nel, L. (2018) A Pleistocene Thrust Fault in Anorthosite of the Rustenburg Layered Suite near Mooinooi, North West Province, South Africa: Neotectonic Implications. South African Journal of Geology, 121 (4) 421-430 doi:10.25131/sajg.121.0033 | Journal (article/letter/editorial) | | Layered Suite near Mooinooi, North West Province, South Africa: Neotectonic Implications J.M.A. Steenekamp...Steenekamp P.O. Box 2986, Lichtenburg, 2740 South Africa e-mail: sbrietput@gmail.com W.A. van der Westhuizen Department...Free State, P.O. Box 339, Bloemfontein 9300 South Africa e-mail: willemvdw1950@gmail.com M.D. Bateman...Free State, P.O. Box 339, Bloemfontein 9300 South Africa e-mail: lj.heritage@gmail.com; nel.leon@vodamail...co.za © 2018 December Geological Society of South Africa Abstract The 2.056 Ma Bushveld Complex (BC) |  | McDonald, Iain, Hughes, Hannah S.R., Butler, Ian B., Harris, Jeffrey W., Muir, Duncan (2017) Homogenisation of sulphide inclusions within diamonds: A new approach to diamond inclusion geochemistry. Geochimica et Cosmochimica Acta, 216. 335-357 doi:10.1016/j.gca.2017.04.039 | Journal (article/letter/editorial) | | inclusions within diamonds: A new approach to diamond inclusion geochemistry Iain McDonald, Hannah.S...inclusions within diamonds: A new approach to diamond inclusion geochemistry, Geochimica et Cosmochimica...inclusions within diamonds: A new approach to diamond inclusion geochemistry Iain McDonald1*, Hannah...Witwatersrand, Private Bag 3, Wits 2050, Johannesburg, South Africa 3 School of Geosciences, University of Edinburgh...composition of the mantle. Entombed within their diamond hosts, these provide a more robust (closed system) |  | Howell, D., Stachel, T., Stern, R.A., Pearson, D.G., Nestola, F., Hardman, M.F., Harris, J.W., Jaques, A.L., Shirey, S.B., Cartigny, P., Smit, K.V., Aulbach, S., Brenker, F.E., Jacob, D.E., Thomassot, E., Walter, M.J., Navon, O. (2020) Deep carbon through time: Earth’s diamond record and its implications for carbon cycling and fluid speciation in the mantle. Geochimica et Cosmochimica Acta, 275. 99-122 doi:10.1016/j.gca.2020.02.011 | Journal (article/letter/editorial) | | Journal Pre-proofs Deep carbon through time: Earth’s diamond record and its implications for carbon cycling... Navon, O., Deep carbon through time: Earth’s diamond record and its implications for carbon cycling...Elsevier Ltd. Deep carbon through time: Earth’s diamond record and its implications for carbon cycling...Sciences, Macquarie University, North Ryde, New South Wales 2109, Australia 11 Centre de Recherches Petrographiques...concentration study, carried out on fragments of 144 diamond samples from various locations, from ~3.5 to 1 |
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