 | | Journal (article/letter/editorial) | | Kimberlite-hosted diamond deposits of southern Africa: A review Matthew Field a,â, Johann Stiefenhofer...Southdale, 2135, South Africa c De Beers Group Services, PO Box 47, Kimberley, South Africa d De Beers Canada...deposits in central South Africa in the mid nineteenth century, it was at Kimberley where the volcanic...industrial development of southern Africa. Following the discoveries at Kimberley, even more valuable deposits...deposits were discovered in South Africa and Botswana in particular, but also in Lesotho, Swaziland and Zimbabwe |  | | Journal (article/letter/editorial) | | dynasty (320â298 B.C.) who regulated an active local diamond trade (Maillard, 1980). Legends associated... Figure 4. A diamond crystal in âblue groundâ from South Africa, probably from the collection of Gardner and...Hyderabad, and the only modern producing diamond mine in India exploits the Majhgawan lamproite pipe near...Brazilian era continued until the South African discoveries of the 1860âs, and South African diamond production...until the first decades of the 20th century. South Africa is still a significant producer, but since about |  | | Book | | Phase 5. Sample Treatment D) World Production E) South African Diamond Occurrences 1. Large Kimberlite...Finsch 1.4 Kimberley 1.5 Koffiefontein 2. Smaller mineralised kimberlites in South Africa 2.1 The Oaks... their relative production contributions in South Africa were, primary (kimberlite) 8.63 million carats...suggest approximately 40% for the Kimberley mines and 55% for Premier mine. The proportion of gems in the...deposits is over 98%. The MIBA mine in the Congo and the Argyle mine in Australia have an average gem |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | | Journal (article/letter/editorial) | | 356 F. P. MennellâSouth African Petrography. certain theories in vogue, a complete geology of the Pyrenees...a paradox that contradicts every detail of the district. There could be no shadow of doubt that they are...easier to silence all local observation than to repeat its task. V.âCONTRIBUTIONS TO SOUTH AFRICAN PETROGRAPHY...the enormous development of igneous rocks in South Africa, that so little has been written concerning...the field or under the microscope. Eight away from Cape Town into the tropics, plutonic masses, dykes, and |  | | Journal (article/letter/editorial) | | 3b7S02.W;O Ultramafic nodules from the Kimberley pipes, South Africa F. R. BOYD Geophysical Laboratory, Carnegie...from the Kimberley pipes differ from suites collected in a number of other areas in southern Africa in two...low-temperature (< 1100°C) peridotites from the Kimberley pipes have textures ranging from coarse to fluidal...mosaic-porphyroclastic. In most nodule suites from southern Africa and elsewhere in the world, these low-temperature...Petrographic and electron microprobe study of the Kimberley peridotites shows that they are depleted in basaltic |  | | Book (volume) | | rise and development of the diamond mines of South Africa, from an historical, economic and technical...days on the diamond fields when the mines in the Kimberley and Jagersfontein areas were the only diamond...collect during my many visits to all parts of South Africa where kimberlite deposits occurred and the filing...was necessary to file * "The Diamond Mines of South Africa," by Gardner F. Williams. V . Vl l I I...my attention from the time of my arrival in South Africa was the accidental and cognate inclusions found |  | | Journal (article/letter/editorial) | | from 16 intrusions in Lesotho, the Republic of South Africa, and Tanzania have been investigated. The following...the kimberlite is present in the form of zircon. Ilmenite, which contains 546--1190 ppm Zr (MITcI-mLL et...material studied (especially the zircons from the Kimberley mines) was subangular in shape, with one or a...predominate. Zircons from the Kimberley group of intrusions (i.e., Kimberley, Dutoitspan, De Beers, Wesselton...bronzite that are found in the kimberlites of northern Lesotho also show some fractures and cracks (NlxoN |  | | Journal (article/letter/editorial) | | THE PREMIER DIAMOND SOUTH MINE, TRANSVAAL, AFRICA2 R. A. F. PâąRosâą, GENERAL FEATURES OF DIAMOND...DEPOSITS IN SOUTH AFRICA. Chief Localities.--The principal diamond mines of South Africa, locallyknownas...diamond"pipes,"are at and nearKimberley and elsewherein Cape Colony; at a number of placesin Orange River Colony;...of the DeBeers Consolidated Mines Company near Kimberley, and that of the Premier (Transvaal) Diamond Mining...River, the Orange River and other streamsof South Africa, but the productionfrom suchsourcesis very small |  | Defnet, Peter A., Wise, Michael A., Harmon, Russell S., Hark, Richard R., Hilferding, Keith (2021) Analysis of Garnet by Laser-Induced Breakdown SpectroscopyâTwo Practical Applications. Minerals, 11 (7) 705 doi:10.3390/min11070705 | Journal (article/letter/editorial) | | , Hawk Mine, NC, USA; Rutherford Mine, VA, USA; Little 3 Mine, Ramona, CA, USA; Golcando Mine, Minas...Mexico; Broken Hill, Australia; Ducktown Mine, TN, USA; Jeffrey Mine, QC, Canada). Garnetiferous kimberlite...from our kimberlite localities (e.g., Kimberly, South Africa; Garnet Ridge, AZ, USA), whereas uvarovite is...associated with chromite pods (e.g., Saranovskii Mine, Russia). Samples of garnet in medium- to high-grade...Outokumpu, Finland; Eden Mills, VT, USA; Jeffrey Mine, Quebec, Canada). Metal sulfide-oxide-silicate ore |  | WHITE, J. L., SPARKS, R. S. J., BAILEY, K., BARNETT, W. P., FIELD, M., WINDSOR, L. (2012) KIMBERLITE SILLS AND DYKES ASSOCIATED WITH THE WESSELTON KIMBERLITE PIPE, KIMBERLEY, SOUTH AFRICA. South African Journal of Geology, 115 (1) 1-32 doi:10.2113/gssajg.115.1.1 | Journal (article/letter/editorial) | | ASSOCIATED WITH THE WESSELTON KIMBERLITE PIPE, KIMBERLEY, SOUTH AFRICA J.L. WHITE, R.S.J. SPARKS, K. BAILEY Department...seroster99@hotmail.com © 2012 March Geological Society of South Africa ABSTRACT Field relations, petrography and bulk...complex exposed in water tunnels at Wesselton Mine, Kimberley. The sill complex, together with associated...associated with the Wesselton kimberlite pipe, Kimberley, South Africa. This study investigates their intrusion...Wesselton Mine is situated 6.5 km southeast of Kimberley in the Northern Cape Province of South Africa and |  | Giuliani, Andrea, Soltys, Ashton, Phillips, David, Kamenetsky, Vadim S., Maas, Roland, Goemann, Karsten, Woodhead, Jon D., Drysdale, Russell N., Griffin, William L. (2017) The final stages of kimberlite petrogenesis: Petrography, mineral chemistry, melt inclusions and Sr-C-O isotope geochemistry of the Bultfontein kimberlite (Kimberley, South Africa) Chemical Geology, 455. 342-356 doi:10.1016/j.chemgeo.2016.10.011 | Journal (article/letter/editorial) | | geochemistry of the Bultfontein kimberlite (Kimberley, South Africa) Andrea Giuliani, Ashton Soltys, David...geochemistry of the Bultfontein kimberlite (Kimberley, South Africa), Chemical Geology (2016), doi:10.1016/j...the SC RI PT Bultfontein kimberlite (Kimberley, South Africa) Andrea Giuliani1,2,3*, Ashton Soltys1...(BK) from the Bultfontein kimberlite (Kimberley, South MA Africa). Sample BK consists of abundant macrocrysts...monticellite, spinel, perovskite, phlogopite and ilmenite in a matrix of calcite, PT serpentine and dolomite |  | | Journal (article/letter/editorial) | | metasomatised MARID rock in a kimberlite peridotite FRANCES G. WATERS*, Department between and xenolith...(Received February University Cape 7700, South of Cape Town, Africa 17, 1989; Accepted April 19...(basaltic) kimberlites, and in particular from the Kimberley group of pipes. However, the Newlands pipes have...Smith (1977) on the MARID (Mica-Amphibole Rutile-Ilmenite-Diopside) suite of mantle xenoliths found in southern...km north-west of Barkly West in the Cape Province of South Africa. Petrographically and isotopically the |  | | Journal (article/letter/editorial) | | magma evolution of the De Beers dyke (Kimberley, South Africa) Ashton Soltys 1 & Andrea Giuliani 1,2...intrusion bordering the De Beers pipe (Kimberley, South Africa). Petrographic features and mineral compositions...subsequently rims), Cr-rich spinel, rutile, and magnesian ilmenite, probably on ascent to the surface; and (4) crystallisation...magnesian ilmenite, and spinel) overlap those from the root zone intrusions of the main Kimberley pipes (i...distinct from those in âevolvedâ intrusions of the Kimberley cluster (e.g., Benfontein, Wesselton water tunnel |  | | Journal (article/letter/editorial) | | of Pretoria, University Road, 0002 Pretoria, South Africa latter two stages, it is interesting to speculate...mining Early evidence of pre-historic âminingâ with local beneficiation has been described from archaeological...com). D = Damtshaa Mine, G = Ghag- hoo Mine, J = Jwaneng Mine, K = Karowe (AK06) Mine, Kx = KX36 prospect... L = Letlhakane Mine, M = Martinâs Drift (Lerala) kimberlites, O = Orapa (AK01) Mine, T = Tsabong M1...of two of the kimberlites of the Damtshaa diamond mine (Fig. 1), small silcrete artefacts from the earliest |  | | Journal (issue) | | from the 1700 level, Zinc Corporation mine, Broken Hill, New South Wales, Australia. Collection of the...collection, John Chapman photo. âą 2.5 cm, Top Camp mine, Western Ausytralia. George Stacey collection, Jeff...Scovil photo. Middle row from left: âą 2.3 cm, Kintore mine, Coolgardie, Western Australia. Aloe Family collection;...Chapman photo. âą 1.4 cm, Chapmanâs Gully, South Australia. South Australian Museum collection; Jeff Scovil...Jeff Scovil photo. âą 4.2 cm, Mongalata goldfield, South Australia. Geoscience Australia collection; Jeff |  | | Journal (article/letter/editorial) | | THE KIMBERLEY MINING DISTRICT, SOUTH AFRICA By I N C R I D P A S U T I N Geologist - Geology Editor Route... W i s c o n s i n . 5 3 1 2 0 INTRODUCTION in Africa was discovered The diamond has been prized for...Union of South Africa in the vicinity of the town of Kimberley. The mining district lies in the Cape of Good...northeast of Cape Town. Near Kimberley lies the first profitable diamond mine in South Africa: The KimÂ...Kim berley Mine. It is located on the edge of town, but within a few miles and closely spaced, lie the other |  | | Book | | with whose research groups at the universities of Cape Town and Chicago I have had long and fruitful collaboration...collaboration. Much of my fieldwork in southern Africa has been carried out with the cooperation and assistance...7.3 2.8 2.9 Africa . . . . . . . . . . . . . . . . . . . . . . . . . . . . West Africa . . . . . . .... . . . . Central Africa. . . . . . . . . . . . . . . . . . . . . . . East Africa. . . . . . . . . .... . . . . . . . . . . . . . . . Southern Africa . . . . . . . . . . . . . . . . . . . . . U.S.S.R. . |  | | Journal (article/letter/editorial) | | Abstract Kimberlite magmas from the Kimberley area of South Africa have sampled two main types of phlogopite-rich...mica (phlogopite)âamphibole (K-richterite)ârutileâilmeniteâclinopyroxene and the second group consists of...characterised by the mineral association mica (phlogopite)âilmeniteâ clinopyroxeneâminor rutile. The two groups are...major element composition of their phlogopite and ilmenite, by the trace element content of their clinopyroxene...and metasomatised, the upper mantle beneath the Kimberley area as indicated by the trace element characteristics |  | | Journal (article/letter/editorial) | | PERIDOTITE NOTE ON THE OF KIMBERLEY, VICTOR DIAMOND-BEARING SOUTH AFRICA. HARTOG. WITa x BmLIOORAâą'aŸ...examination. During a stay of threeyears,however,at the mine, from a careful comparisonof publisheddescriptions...study could not have been extended to all of the South African pipes but it is believedthat the presentdescriptionwill...north, south, east, west and center of certain working levelsin the De BeersMine, Kimberley, South Africa...not gone so far 438 NOTE ON PERIDOTITE OF KIMBERLEY. 439 as to producecrumbling. This difficultyhad |  | | Book | | stationery while vacationing on the Natal Coast of South Africa. Wilson uses it as a symbol of the Ivory Coast...blood, my father (a distinguished editor ol the Cape Times) having been one ol lour sons ol a sullragan...became imbedded in the Witwatersrand formation in South Africa . 98 Continental Shields of the Earth. 101...108 The Hope Diamond (Color Plate). 129 Map of South Africa . 133 Distribution of known kimberlite occurrences...from Kimberley Mine . 140 The "Big Hole of Kimberley" today. 141 The open pit of the Kimberley Mine in |  | | Journal (article/letter/editorial) | | Geological Sciences, University of Cape Town, Rondebosch 7700, South Africa e-mail: David.R.Bell@asu.edu ...University of Cape Town, Rondebosch 7700, South Africa Email: © 2004 Geological Society of South Africa ABSTRACT...subcontinental lithospheric mantle of southern Africa, and may be used to probe its compositional structure...garnet megacrysts from 61 kimberlites in southern Africa define four broad arrays on the basis of Cr2O3...mantle. High-Cr megacrysts in kimberlites of the northern cratonic areas bear the influence of lithospheric |  | | Book | | Reunert's Diamond Mines of South Africa. ADVERTISEMENTS. A REVELATION. The frequent the transactions... more SOUTH . 25 MILLIONS -65 . than 1843 IT . . 13 OF POUNDS. 32 AFRICAâCAPE TOWN, ...L THE OF EG NERA FIELDS WEST. AFRICA. DIAMOND GRIQUALND SOUTH [Reproduced , with permission,... from the Map of n an d South African Exploration Company.] ADVERTISEMENTS. ÂŁ. BVlRfllESTW... VS, GOODS, Street, (BURMESTERâS BUILDINGS) CAPE SOLE Berlin AGENT FOR TOWN, THE CELEBRATED |  | | Book | | fields in South Africa 8 1.4 Major kimberlite sites in Russia 9 1.5 Main Russian diamond mine sites and...within Siberian platform 13 1.6 Kimberlite fields south of the White Sea 15 1.7 Diamond placers in Venezuela...Kimberlites, lamproites, and diamonds in the Kimberley region, Western Australia 25 1.10 Important...kimberlite, Colorado 97 6.7 High wall at Kelsey Lake mine in Colorado with kimberlite breccia lying under...epiclastic facies of kimberlites in central and southern Africa 104 6.11 Lesotho dike swarm 107 6.12 Vertical |  | | Journal (article/letter/editorial) | | Nooitgedacht (66), Kimberley South Africa M.C.J. de Wit De Beers Consolidated Mines Ltd. Africa Exploration...0046, South Africa E-mail: mike.dewit@debeersgroup.com © 2004 Geological Society of South Africa ABSTRACT...were mined on the farm Nooitgedacht (66) in the Kimberley area between 1908 and 1930, 1948 and 1981, and...of the biggest alluvial diamond ever found in South Africa, the Venter diamond (511.25cts). The farm can...occupied a wide and shallow valley draining the Kimberley area into the palaeo-Vaal River. This tributary |
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