 | | Book | | discovery of these rocks in the Orange Free State of South Africa. The name is not a new one: In 1928, Percy Wagner...Orangeites 1.8. Occurrences of Orangeites . 1. 8.1. Finsch . . . . . . . . 1.8.2. Barkly West Region. 1.8...3. Boshof District . . . 1.8.3.1. Roberts Victor 1.8.3.2. New Elands 1.8.4. Winburg District ... 1.8.5...Kroonstad District .. 1.8.6. Swartruggens District. 1.8.7. Dokolwayo .. 1.8.8. Prieska District 1.8.9. Summary...derived from kimberlites were first found in South Africa in October 1869 on the farms Bultfontein and |  | Donnelly, Cara L., Griffin, William L., OâReilly, Suzanne Y., Pearson, Norman J., Shee, Simon R. (2011) The Kimberlites and related rocks of the Kuruman Kimberlite Province, Kaapvaal Craton, South Africa. Contributions to Mineralogy and Petrology, 161 (3) 351-371 doi:10.1007/s00410-010-0536-9 | Journal (article/letter/editorial) | | Kuruman Kimberlite Province, Kaapvaal Craton, South Africa Cara L. Donnelly ⢠William L. Griffin ⢠Suzanne...and orangeite and ultramafic lamprophyres to the south. Differences in the age and petrogenesis of the...trace element compositions are similar to other South African localities. Compositionally, the aillikites...studies of diamond-bearing rocks from southern Africa led to the recognition of two main subgroups that...c fold belt Fig. 1 Geological map of southern Africa showing the location of the Kuruman Kimberlite |  | | Journal (article/letter/editorial) | | Kroonstad group II kimberlite (orangeite) cluster, South Africa: Evolution of the magma within the cluster Geoffrey...Rhodes University, P.O. Box 94, Grahamstown, South Africa a r t i c l e i n f o Article history: Received...town of Kroonstad in the Free State Province of South Africa (Fig. 1) and is made up of six pipes and numerous...believed to be unique to the Kaapvaal Craton, South Africa, however recent studies present data indicating...(Chalapathi Rao et al., 2010). Group II kimberlites of South Africa typically contain two end member comâ Corresponding |  | | Journal (article/letter/editorial) | | to ilmenite-free Group 2 mica kimberlites of South Africa. The Nd-Sr isotopic characteristics of Guaniamo...placed into any one of the two distinct âreferenceâ South African * Corresponding author. Fax: +1-604-925-8754...Beard et al., 2000), the Koidu kimberlites, West Africa, and the Aries kimberlite, Australia (Taylor et...These kimberlites were discovered in Guaniamo, South-West Venezuela, by J. Drew, R. Cooper and R. Baxter-Brown...diamondiferous Fig. 1. Location of the Guaniamo study area, south-west Venezuela. kimberlite province. The Guaniamo |  | | Journal (article/letter/editorial) | | kimberlite-lamproite magmatism from the Man Craton (West Africa): New insights from petrography and mineral chemistry...kimberlite-lamproite magmatism from the Man Craton (West Africa): New insights from petrography and mineral chemistry...TongoPre-proof and Weasua diamondiferous rocks, West Africa Contrasting types of micaceous kimberlite-lamproite...kimberlite-lamproite magmatism from the Man craton (West Africa): New insights from petrography and mineral chemistry...Geological Sciences, University of Cape Town, Rondebosch 7701, South Africa -p 1 of Geoffrey H. Howarth1 |  | Coe, Nancy, le Roex, Anton, Gurney, John, Pearson, D. Graham, Nowell, Geoff (2008) Petrogenesis of the Swartruggens and Star Group II kimberlite dyke swarms, South Africa: constraints from whole rock geochemistry. Contributions to Mineralogy and Petrology, 156 (5) 627-652 doi:10.1007/s00410-008-0305-1 | Journal (article/letter/editorial) | | Swartruggens and Star Group II kimberlite dyke swarms, South Africa: constraints from whole rock geochemistry Nancy...Geological Sciences, University of Cape Town, Rondebosch 7701, South Africa e-mail: anton.leroex@uct.ac.za...studies on Group II kimberlites, and specifically the Finsch kimberlite. The more recent work of Price et al...and Star, located on the Kaapvaal craton in South Africa (Fig. 1). Both dyke swarms are currently being...are located on the Kaapvaal craton (Fig. 1), South Africa, each consisting of a series of east-west trending |  | | Journal (article/letter/editorial) | | craton. The rocks comprise Ba-Ti-bearing tetraferriphlogopite-tetraferriannite, low AI-Ti-diopside, calcite...Robey et al. ( 1989 ) from Norseman, about 700 km south of Bulljah (Fig. 1 ), but these are dated at ~ 850...Many ancient cratons (e.g. Kaapvaai craton, S. Africa; Canadian, S.W. Greenland and Baltic Shields),...kimberlites and calcite-kimberlites (e.g. Premier mine), though lying not far outside the ul- tramafic...(Canada), Malaita (Solomon Islands) and Kimberley (S. Africa). Some of these ilmenites, like the spinels, may |  | | Book (volume) | | DIAMONDS OXIDE INCLUSIONS IN DIAMONDS FROM THE FINSCH KIMBERLITE J. J. Gurney, J. W. Harris, PIPE ...ANDWILLIAMSON MINE, TANZANIA H.-M. Tsai, O. A. Meyer, 0. Moreau, and H. Judith Milledge REGIONAL AND LOCAL VARIATIONS...KIFYBERLiTES IN THE COLORADO-WYCâ˘ING STATE mINE DISTRICT 42 M. E. McCal!um, C. D. Mabarak, and H. G... K. J. Stracke, 59 OF KIMBEHLITES H.-M. IN SOUTH-EASteRN AUSTRALIA 71 J. Ferguson, an⢠L. P. Black...CARBONATITEERUPTIVES AT SALTPETRE 111 KOP, SUâ˘}tERLAND, SOU'iH AFRICA J. R. â˘cIver and J. Ferguson Mâ˘NERALOGY AND PETROLOGY |  | | Book | | Kuopio, Finland P. Heino Yara Suomi Oy, Siilinjärvi Mine, Siilinjärvi, Finland R.J. Herrington The Natural...US T. Huhtelin QP-FRB Outokumpu Ferrochrome Kemi Mine, Kemi, Finland E. HyvĂśnen Geological Survey of Finland...Survey of Finland, Rovaniemi, Finland, Mustavaara Mine Ltd, Oulu, Finland J. Kinnunen Mawson Resources...Oulu, Finland Contributors T. Mäki Pyhäsalmi Mine Oy, Pyhäsalmi, Finland H.V. Makkonen Geological...Taipale Palsatech Oy, Rovaniemi, Finland Mustavaara Mine Ltd, Oulu, Finland, Finland O.T. RämĂś University |  | | Journal (article/letter/editorial) | | boundary between the undisturbed Archean core in the south and the reworked Archean gneiss in the foreland...covering all compositions due to the often recorded local equilibrations of the compositions of groundmass...dike. The large number of analyses ensures that local equilibrated compositions (e.g., Roeder and Schulze...rare pale translucent phlogopite with no tetraferriphlogopite (TFP) rims. Rims of the groundmass phlogopite...possibly a NAC equivalent to the orangeites of the South African craton (Hutchison and Heaman, 2008; Hutchison |  | | Book | | ............................ 126 5.3.3.2. West Africa ........................................... 126...11. 6.12. 6.13. 6.14. 6.15. 6.6.3 .1. Diverse South African Kimberlites (Dawson and Smith 1975, Smith.......................... 437 KIMBERLITES Ex Africa semper aliquid novi. Pliny The Elder, Natural...confluence of the Vaal, Orange, and Riet Rivers of South Africa in 1866-1867. The ebb and flow of prospecting...to shallow water-filled depressions known in South Africa as "pans." The mud was used in the construction |  | | Journal (article/letter/editorial) | | those reported previously for kimberlites from South Africa, Brazil and India, but overlap with PGE results... and phlogopite that is zoned to low-Ti tetraferriphlogopite, similar to mica zoning trends in Group...contain primary carbonate, they are more akin to South African Group II kimberlites (orangeites) than olivine...signatures (Kargin et al., 2014) plotting close to South African Group I kimberlites as well as kimberlites...I and Group II kimberlites from Finland and South Africa are generally below 5 ppb (Table 2). On average |  | | Book | | Group Name: Barakar 3.7.4. Group Name: Murun 3.8. South American Lamproites 3.8.1. Group Name: Coromandel...and sty Ie of occurrence, relative to archetypal South African kimberlites. The most instructive example... long before the discovery of kimberlite in South Africa in 1869. Curiously, Majhgawan may now be regarded...leucite basalts such as those found in central New South Wales (Cundari 1973) and the central Sierra Nevada...titanian potassium richterite, titanian tetraferriphlogopite, sodium- and aluminum-deficient leucite |  | 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...Archean Kalahari Craton (Clifford, 1970) in southern Africa was formed by the accretion of three crustal terranes...Greenstone Belt 10â20 km north of the boundary of the Northern Marginal Zone of the late Archean Limpopo Mobile...peridotites were prepared in the laboratories of the Northern Centre for Isotopic and Elemental Tracing at Durham...swarm and Marsfontein Pipe are located 90 km to the south of the map within the Kaapvaal Craton. See also |  | | Book | | (Novosibirsk) International Treasurer: H.O.Meyer (USA) Local Treasurer: 0 AKozmenko (Novosibirsk) Members: V...associated alkalic basaltic rocks from Pishin District, Pakistan.4 Reasons of variations of individual...lamproites and kimberlites of the Kola peninsula and Northern Karelia.............28 Experimental study of fluid...prognosis and prospering of diamond's host rocks on the south of Siberian platform.38 The petrology and geochemistry...a polymict xenolith from the Kimberley Area, South Africa......40 Eclogites from the Mir kimberlite, Russia: |  | | Book | | e SEVENTH INTERNATIONAL KIMBERLITE CONFERENCE Cape Town, April 1998 EXTENDED ABSTRACTS All extended...responsibility for authorsâ errors and omissions. SOUTH AFRICA SEVENTH INTERNATIONAL KIMBERLITE CONFERENCE...Survey of South Africa) SouthemEra Resources Ltd SOCIETY SPONSORS Geological Society of South Africa (GSSA)...Preliminary studies. 26 The Complete Phlogopite-Tetraferriphlogopite Series in the Catalao-I and -II Carbonatite...a Phanerozoic subduction regime in eastern New South Wales, Australia. Mantle Dynamics beneath Mongolia: |  | | Journal (article/letter/editorial) | | State of the Mantle beneath the Slave Craton, Northern Canada M. G. KOPYLOVA1â, J. K. RUSSELL1 AND H...fashioned after âminiatureâ versions of the classic South African pipes (Kjarsgaard, 1996). The majority of...pipe is located 400 km NE of Yellowknife near the northern end of Contwoyto Lake, intrudes Archaean granitoids...non-micaceous kimberlite lacking groundmass tetraferriphlogopite (Mitchell, 1995). Chemically, on the basis...becomes prevalent. The shallower limit is where a local PâT array enters the diamond stability field. spinelâgarnet |  | Konzett, JĂźrgen, Krenn, Kurt, Rubatto, Daniela, Hauzenberger, Christoph, Stalder, Roland (2014) The formation of saline mantle fluids by open-system crystallization of hydrous silicate-rich vein assemblages â Evidence from fluid inclusions and their host phases in MARID xenoliths from the central Kaapvaal Craton, South Africa. Geochimica et Cosmochimica Acta, 147. 1-25 doi:10.1016/j.gca.2014.10.015 | Journal (article/letter/editorial) | | xenoliths from the central Kaapvaal Craton, South Africa JĂźrgen Konzett, Kurt Krenn, Daniela Rubatto...xenoliths from the central Kaapvaal Craton, South Africa, Geochimica et Cosmochimica Acta (2014), doi:...xenoliths from the central Kaapvaal Craton, South Africa JĂźrgen Konzett1, Kurt Krenn2, Daniela Rubatto3...respectively and correspond to a 10-25 mol% tetraferriphlogopite component. Halogen contents of the phlogopites...crystals of both type-I and -II FIs is irregular with local high concentrations yielding a cloudy appearance |  | Stamm, Natalia, Schmidt, Max W., Szymanowski, Dawid, von Quadt, Albrecht, Mohapi, Thabang, Fourie, Andre (2018) Primary petrology, mineralogy and age of the LetĹĄeng-la-Terae kimberlite (Lesotho, Southern Africa) and parental magmas of Group-I kimberlites. Contributions to Mineralogy and Petrology, 173 (9) doi:10.1007/s00410-018-1502-1 | Journal (article/letter/editorial) | | LetĹĄeng-la-Terae kimberlite (Lesotho, Southern Africa) and parental magmas of Group-I kimberlites Natalia...the LetĹĄeng kimberlite. Keywords Kimberlite ¡ South Africa ¡ U-Pb perovskite geochronology ¡ Parent melt...(2009) analyzed mainly hypabyssal samples from the South African Kimberley area, the Uintjiesberg kimberlite...observed in ÂTiO2, which is 2.6â3.2 wt% in Southern Africa (Becker and Le Roex 2006; Harris et al. 2004) but...kimberlites (orangeites), which only occur in South Africa (Skinner 1989) are distinct from Group-I (archetypal) |  | Giuliani, Andrea, Phillips, David, Kamenetsky, Vadim S., Fiorentini, Marco L., Farquhar, James, Kendrick, Mark A. (2014) Stable isotope (C, O, S) compositions of volatile-rich minerals in kimberlites: A review. Chemical Geology, 374. 61-83 doi:10.1016/j.chemgeo.2014.03.003 | Journal (article/letter/editorial) | | partial overprinting by secondary processes at the local scale. Carbonates in southern African Group I (or.... . . . . . . 2.2.3. Local variations of CâO isotopes: Kimberley (South Africa), Lac de Gras (Canada)...and therefore K2O contents, occurrence of tetraferriphlogopite and KâBa titanates and, in more evolved...hypabyssal kimberlite samples from: (a) the Diavik mine (Lac de Gras, Canada), and (b) the Gollapalle pipe...range of mantle carbonates. These regional and local variations can be attributed to different isotopic |  | | Report (chapter) | | Argyle, W Australia, is among the largest (125 acres and more than 100 million tons) and is the highest...(typically 20-80 ct per 100 tons in grade and 2060 acres in area) in the quantity of diamonds contained....kimberlites (e.g. the Group II kimberlites of S Africa (Smith 1983a, b) and other m i c a c e o u s kimberlites)...et al. 1985; Foley et al., K-rich rocks occur as local variations within in review). Niggli (1923, pp....1.5 x 103 to 2.5 ⢠103 Ma. Enoree Vermiculite district, S Carolina ( E V D ) (34 ~ 30' N, 82 ~ W) Geochemical |  | | Journal (article/letter/editorial) | | Cove minette (mica-potash feldspar lamprophyre)of northern New Brunswick, Canada,are TiO2-richphlogopiteswith...1980),it is possiblethat its micashave a "tetraferriphlogopite" component.However, ferric iron intheZ sitesof...phlogopite peridotites) in the Gardar province of south Greenland(Upton and Thomas, 1973,Table 3, anal....Table 3, anal. 129); and various localities in South Africa (Smith, et al., 1978,Table 3, anal. 6b, 7c,...cir; Mitchell, 1979,loc. cit.) and one from the South African DeBeers pipe (Boettcher er al., 1979,Table |  | GIBSON, S. A., THOMPSON, R. N., LEONARDOS, O. H., DICKIN, A. P., MITCHELL, J. G. (1995) The Late Cretaceous Impact of the Trindade Mantle Plume: Evidence from Large-volume, Mafic, Potassic Magmatism in SE Brazil. Journal of Petrology, 36 (1) 189-229 doi:10.1093/petrology/36.1.189 | Journal (article/letter/editorial) | | 'DEPARTMENT OF GEOLOGICAL SCIENCES, UNIVERSITY OF DURHAM, SOUTH ROAD, DURHAM DHi 3LE, UK "DEPARTMENTO DE GEOQUIMICA...unrelated to emerged from beneath the westward drifting South America the effects of crystal fractionation in...intermediate between Group I and II INTRODUCTION South African kimberlites. T^DM Nd isotope model ages...series of Proterozoic mobile belts around the northern margin of the Parana Basin (Herz, 1977; Almeida...craton is one of the major shield areas on the South American platform (Fig. 1). Radiometric U/Pb dating |  | | Journal (article/letter/editorial) | | Cretaceous kimberlite of the central Kaapvaal Craton, South Africa. Two episodes of interaction between the host...Konzett et al. / Lithos 182â183 (2013) 165â184 South Africa. In the Kimberley area numerous Cretaceous kimberlites...0.24â0.32 apfu indicating a substantial tetraferriphlogopite component. TiO2, Cr2O3 and F-contents are...from a xenolith of the Frank Smith kimberlite, South Africa. 6. Thermobarometry No pressure estimate based...Clarke (1979) from the Frank Smith Kimberlite/South Africa. J. Konzett et al. / Lithos 182â183 (2013) |  | Chalapathi Rao, N.V., Kumar, Alok, Sahoo, Samarendra, Dongre, A.N., Talukdar, Debojit (2014) Petrology and petrogenesis of Mesoproterozoic lamproites from the Ramadugu field, NW margin of the Cuddapah basin, Eastern Dharwar craton, southern India. Lithos, 196. 150-168 doi:10.1016/j.lithos.2014.03.007 | Journal (article/letter/editorial) | | (Majhgawan, Hinota and Saptarshi lamproites), Northern India (Masun et al., 2009), (iv) the Damodar Valley...IV fold site and hence can be regarded as tetraferriphlogopite which is considered characteristic of lamproites...Lithos 196â197 (2014) 150â168 craton, southern Africa and the Argyle lamproite of Western Australia,...peridotite nodules from the Kimberley pipes, South Africa. In: Menzies, M.A., Hawkesworth, C.J. (Eds.)...Geological Survey of India, 1999. District resource map of Nalgonda District, Andhra Pradesh. 1;250,000 scale |
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