Meyer, N. A. (2021). Diamonds and Their Inclusions From the Koffiefontein Mine. Doctor of Philosophy, Department of Earth and Atmospheric Sciences, University of Alberta

Reference Search (possible matching items)

	Timmerman, S., Jaques, A.L., Weiss, Y., Harris, J.W. (2018) N-δ13C-inclusion profiles of cloudy diamonds from Koffiefontein: Evidence for formation by continuous Rayleigh fractionation and multiple fluids. Chemical Geology, 483. 31-46 doi:10.1016/j.chemgeo.2018.02.024	Journal (article/letter/editorial)
	N-δ13C-inclusion profiles of cloudy diamonds from Koffiefontein: Evidence for formation by continuous Rayleigh...N-δ13Cinclusion profiles of cloudy diamonds from Koffiefontein: Evidence for formation by continuous Rayleigh...N-δ13C-inclusion profiles of cloudy diamonds from Koffiefontein: evidence for formation by continuous Rayleigh...zone (‘cloudy diamonds’) from the Koffiefontein mine, South Africa, were investigated for N concentrations...aggregation state along core-torim traverses in six cloudy diamonds from the Koffiefontein mine in South Africa
	Meyer, Nicole A., Wenz, Michelle D., Walsh, James P.S., Jacobsen, Steven D., Locock, Andrew J., Harris, Jeffrey W. (2019) Goldschmidtite, (K,REE,Sr)(Nb,Cr)O3: A new perovskite supergroup mineral found in diamond from Koffiefontein, South Africa. American Mineralogist, 104 (9) 1345-1350 doi:10.2138/am-2019-6937	Journal (article/letter/editorial)
	supergroup mineral found in diamond from Koffiefontein, South Africa Nicole A. Meyer1,, Michelle D. Wenz2...an inclusion in a diamond from the Koffiefontein* pipe in South Africa. In addition to the dark green and...peak at 815 cm–1, which is possibly a result of local ordering of Nb and Cr at the B site. The name goldschmidtite...niobium, mantle, diamond inclusion, new mineral, Koffiefontein, Kaapvaal Introduction Diamonds are carriers...deep-mantle regions. The Kaapvaal craton in South Africa is host to many diamondiferous kimberlites that
	*(2001) Diamond Geology. De Beers Group.*	Book
	Phase 5. Sample Treatment D) World Production E) South African Diamond Occurrences 1. Large Kimberlite...1.4 Kimberley 1.5 Koffiefontein 2. Smaller mineralised kimberlites in South Africa 2.1 The Oaks 2.2 The... their relative production contributions in South Africa were, primary (kimberlite) 8.63 million carats...Premier mine. The proportion of gems in the West Coast marine deposits is over 98%. The MIBA mine in the...the Congo and the Argyle mine in Australia have an average gem content of only 5%. The dispersal of diamonds
	Deines, Peter, Harris, J.W, Gurney, J.J (1991) The carbon isotopic composition and nitrogen content of lithospheric and asthenospheric diamonds from the Jagersfontein and Koffiefontein kimberlite, South Africa. Geochimica et Cosmochimica Acta, 55 (9) 2615-2625 doi:10.1016/0016-7037(91)90377-h	Journal (article/letter/editorial)
	diamonds from the Jagersfontein and Koffiefontein kimberlite, South Africa PETER DEINES,’J. W. HARRIS,’ and...GURNEYS ‘Department of Geosciences, The Pennsylvania State University, University Park, PA 16802, USA 2Department...Department, University of Cape Town, Rondebosch 7700, South Africa (Received September 19, 1990; accepted in revised...diamonds, from the Jagersfontein kimberlite, South Africa, have a 613Crange from - 18.9 to -24.4%0 vs...vs. PDB. Deep diamonds from the nearby Koffiefontein mine have 613Cvalues between -2.9 and -6.1 %o.At these
	*Klein-BenDavid, Ofra, Izraeli, Elad S., Hauri, Erik, Navon, Oded (2004) Mantle fluid evolution—a tale of one diamond. Lithos, 77 (1) 243-253 doi:10.1016/j.lithos.2004.04.003*	Journal (article/letter/editorial)
	Microinclusions analyzed in a coated diamond from the Diavik mine in Canada comprise peridotitic minerals and fluids...brine found in cloudy octahedral diamonds from South Africa and carbonatitic melt analyzed in cubic diamonds...a mantle source not significantly influenced by local heterogeneities. D 2004 Elsevier B.V. All rights...with brine inclusions in cloudy diamonds from Koffiefontein. This, together with the evidence for metasomatism...one concentrically zoned diamond from the Diavik mine in Lac de Gras, Slave Craton, Canada. Microinclusions
	Naidoo, P., Stiefenhofer, J., Field, M., Dobbe, R. (2004) Recent advances in the geology of Koffiefontein Mine, Free State Province, South Africa. Lithos, 76 (1) 161-182 doi:10.1016/j.lithos.2004.04.032	Journal (article/letter/editorial)
	advances in the geology of Koffiefontein Mine, $ Free State Province, South Africa P. Naidoo a,b,, J. Stiefenhofer...Beers Koffiefontein* Mine, South Africa De Beers Mineral Resource Management, CHQ, South Africa c De Beers...Beers Geoscience Centre, South Africa d De Beers Central Mines, South Africa e De Beers Mineral Resource...geology of the Koffiefontein pipe has contributed to the marginal nature of the mine. The key to this...work indicates that the kimberlite pipe at Koffiefontein consists of precursor dykes (the West and East
	Izraeli, Elad S., Harris, Jeffrey W., Navon, Oded (2004) Fluid and mineral inclusions in cloudy diamonds from Koffiefontein, South Africa. Geochimica et Cosmochimica Acta, 68 (11) 2561-2575 doi:10.1016/j.gca.2003.09.005	Journal (article/letter/editorial)
	mineral inclusions in cloudy diamonds from Koffiefontein, South Africa ELAD S. IZRAELI,1,* JEFFREY W. HARRIS...in microinclusions in cloudy diamonds from Koffiefontein. The silicates belong to either the eclogitic...the larger mineral inclusions found in other Koffiefontein diamonds and record similar pressures and temperatures...mineral phases that were not detected before in Koffiefontein: phlogopite, high-Si mica, an Al-Mg-rich phase...with the high proportion of cloudy diamonds in Koffiefontein, suggest that brine penetration into neighboring
	Nimis, P. (2002) THE PRESSURES AND TEMPERATURES OF FORMATION OF DIAMOND BASED ON THERMOBAROMETRY OF CHROMIAN DIOPSIDE INCLUSIONS. The Canadian Mineralogist, 40 (3) 871-884 doi:10.2113/gscanmin.40.3.871	Journal (article/letter/editorial)
	OF DIAMOND BASED ON THERMOBAROMETRY OF CHROMIAN DIOPSIDE INCLUSIONS PAOLO NIMIS§ Dipartimento di Mineralogia...P for over one-hundred inclusions of chromian diopside (mostly isolated) in diamond crystals containing...crystals. The results support the use of chromian diopside thermobarometry as a complementary tool for assessment... Keywords: diamond, thermobarometry, chromian diopside, inclusions, upper mantle. SOMMAIRE Jusqu’à ce...utilisant plus d’une centaine d’inclusions de diopside chromifère (grains isolés pour la plupart) dans
	*Morkel, J., Vermaak, M. K. G. (2006) The role of swelling clay in kimberlite weathering. Mineral Processing and Extractive Metallurgy, 115 (3). 150-154 doi:10.1179/174328506x109121*	Journal (article/letter/editorial)
	Metallurgical Engineering, University of Pretoria, South Africa Corresponding author, email Jacqueline.Morkel@mhs7...mineral groups: olivine, micas, calcite, serpentine, diopside* (pyroxene), chlorite, talc, apatite, magnetite...is described by the Soil Science Society of South Africa.5 The CEC is expressed as the centimoles of...the Wesselton, Dutoitspan, Koffiefontein and Venetia Mines in South Africa. These kimberlites differ considerably...phase identification was performed by Mintek, South Africa, and semiquantitative phase percentages were
	Safonov, Oleg G., Perchuk, Leonid L., Litvin, Yuriy A. (2007) Melting relations in the chloride–carbonate–silicate systems at high-pressure and the model for formation of alkalic diamond–forming liquids in the upper mantle. Earth and Planetary Science Letters, 253 (1) 112-128 doi:10.1016/j.epsl.2006.10.020	Journal (article/letter/editorial)
	Chernogolovka, Moscow District, 142432, Russia b Department of Geology, Moscow State University, Vorobievy...these liquids are distinguished in diamonds from Africa, Canada, Brazil, Yakutia, and India (Fig. 1): (1)...previously reported for diamonds from Yakutia, Africa, and Canada, which were analyzed by the proton...(1) Zaire and Botswana [22], (2, 3) Koffiefontein pipe, South Africa [26,32]; (4) Yubileinaya pipe, Yakutia...Yakutia [25,28,30]; (5) Diavik mine, Canada [29,30]; (6) diverse Yakutian pipes (O. Navon, pers. comm.);
	Nazzareni, S., Comodi, P., Bindi, L., Safonov, O. G., Litvin, Y. A., Perchuk, L. L. (2008) Synthetic hypersilicic Cl-bearing mica in the phlogopite-celadonite join: A multimethodical characterization of the missing link between di- and tri-octahedral micas at high pressures. American Mineralogist, 93 (8) 1429-1436 doi:10.2138/am.2008.2802	Journal (article/letter/editorial)
	Moscow, Russia "Department of Petrology, Moscow State University, Moscow, Russia ABSTRACT A hypersilicic...to the solidus of the join diopside-jadeite-KCl, in association with diopside-jadeite pyroxene, K-rich...in cloudy diamonds from the Koffiefontein pipe, Republic of South Africa (Izraeli et al. 2004). Eclogitic...CHARACTERIZATION OF SYNTHETIC blages in the Koffiefontein fluid-bearing diamonds carry mica, as well....carbonate-silicate melt in diamond from the Diavik mine, Canada (Klein-BenDavid et al. 2006). In micas from
	Shirey, S. B. (2004) Age, paragenesis and composition of diamonds and evolution of the Precambrian mantle lithosphere of southern Africa. South African Journal of Geology, 107 (1) 91-106 doi:10.2113/107.1-2.91	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...diamonds from the Kimberley area kimberlites, Koffiefontein, Orapa and Jwaneng have Re-Os isotopic ages...of Archean lithosphere, particularly in southern Africa, is to relate lithospheric structure to the age
	Phillips, D., Harris, J.W., Viljoen, K.S. (2004) Mineral chemistry and thermobarometry of inclusions from De Beers Pool diamonds, Kimberley, South Africa. Lithos, 77 (1) 155-179 doi:10.1016/j.lithos.2004.04.005	Journal (article/letter/editorial)
	inclusions from De Beers Pool diamonds, Kimberley, South Africa D. Phillips a,, J.W. Harris b, K.S. Viljoen...Mines Ltd., P.O. Box 82232, Southdale, 2135, South* Africa b Received 27 June 2003; accepted 14 December...important De Beers Pool kimberlites in Kimberley, South Africa, are characterised by harzburgitic compositions...important De Beers Pool kimberlites in Kimberley, South Africa (28j46VS, 24j48VE). The Kimberley region is...the site of the first diamond discoveries in South Africa, the type locality for Group I (basaltic) kimberlites
	Aulbach, Sonja, Shirey, Steven B., Stachel, Thomas, Creighton, Steven, Muehlenbachs, Karlis, Harris, Jeff W. (2009) Diamond formation episodes at the southern margin of the Kaapvaal Craton: Re–Os systematics of sulfide inclusions from the Jagersfontein Mine. Contributions to Mineralogy and Petrology, 157 (4) 525-540 doi:10.1007/s00410-008-0350-9	Journal (article/letter/editorial)
	systematics of sulfide inclusions from the Jagersfontein Mine Sonja Aulbach Æ Steven B. Shirey Æ Thomas Stachel...hosts, thus preserving the composition, thermal state, and early modifications of the cratonic mantle... 1 Map (after Pearson et al. 1998) of southern Africa with political boundaries showing the outline of...text (O Orapa, JW Jwaneng, DP De Beers Pool, K Koffiefontein, J Jagersfontein) 123 Contrib Mineral Petrol...sulfides) versus peridotitic (pyrope-rich garnet, diopside, olivine, opx, Ni-rich sulfides) paragenesis.
	Weiss, Yaakov, Goldstein, Steven L. (2018) The involvement of diamond-forming fluids in the metasomatic ‘cocktail’ of kimberlite sources. Mineralogy and Petrology, 112. 149-167 doi:10.1007/s00710-018-0613-8	Journal (article/letter/editorial)
	diamonds from the Finsch Group II kimberlite, South Africa, and identified two diamond populations: ‘Finsch...and the neighbouring Group I kimberlites at Koffiefontein and De Beers Pool indicate that a substantial...diamonds from the Finsch Group II kimberlite, South Africa. We document two diamond populations differing...differing in their nitrogen aggregation state and HDF compositions, and discuss the type and timing of the...microinclusion-bearing diamonds from neighboring kimberlites (Koffiefontein and De Beers Pool), we explore the recent sequence
	*Shirey, Steven B., Richardson, Stephen H., Harris, Jeffrey W. (2004) Integrated models of diamond formation and craton evolution. Lithos, 77 (1) 923-944 doi:10.1016/j.lithos.2004.04.018*	Journal (article/letter/editorial)
	Sciences, University of Cape Town, Rondebosch 7701, South Africa c Division of Earth Sciences, University of...Abstract Two decades of diamond research in southern Africa allow the age, average N content and carbon composition...diamonds from the Kimberley area kimberlites, Koffiefontein, Orapa and Jwaneng have Re – Os isotopic ages...and the Limpopo mobile belt known as the Southern Africa Seismic Experiment (SASE; James et al., 2001; James...averaged. This cylinder is centered below each diamond mine and extends from 150 to 225 km depth. Seismic data
	Shirey, S (2003) Regional patterns in the paragenesis and age of inclusions in diamond, diamond composition, and the lithospheric seismic structure of Southern Africa. Lithos, 71 (2) 243-258 doi:10.1016/j.lithos.2003.07.007	Journal (article/letter/editorial)
	the lithospheric seismic structure of Southern Africa Steven B. Shirey a,, Jeffrey W. Harris b, Stephen... Rondebosch 7701, South* Africa d Department of Geological Sciences, Arizona State University, Box 871404...Department of Mineral Sciences, The Pennsylvania State University, University Park, PA, USA g De Beers...GeoScience Centre, PO Box 82232, Southdale, 2135, South Africa Abstract The Archean lithospheric mantle beneath...beneath the Kaapvaal – Zimbabwe craton of Southern Africa shows F 1% variations in seismic P-wave velocity
	Griffin, W. L., Gurney, J. J., Ryan, C. G. (1992) Variations in trapping temperatures and trace elements in peridotite-suite inclusions from African diamonds: evidence for two inclusion suites, and implications for lithosphere stratigraphy. Contributions to Mineralogy and Petrology, 110 (1) 1-15 doi:10.1007/bf00310878	Journal (article/letter/editorial)
	Geochemistry, Univ, of Cape Town, Rondebosch, 7700, South Africa ReceivedJune 24, 1991 / AcceptedOctober 11,...orthopyroxene inclusions (DI) in >60 diamonds from southern Africa, and in concentrate garnets from the host kimberlites...s f r o m the Finsch, R o b e r t s Victor, Koffiefontein, O r a p a , J a g e r s f o n t e i n a n d...their Fo content; most of those from the Finsch mine group tightly in terms of both Fo and Ca (Fig. 3)...diamonds. o o / r 9 FINSCH z, ROBERTS VICTOR x KOFFIEFONTEIN 4 2 ./,o PREM,ER ORAPA / 0 56.90 na 1
	Garanin, V.K., Kudryavtseva, G.P. (1990) Morphology, physical properties and paragenesis of inclusion-bearing diamonds from Yakutian kimberlites. Lithos, 25 (1) 211-217 doi:10.1016/0024-4937(90)90016-t	Journal (article/letter/editorial)
	G.P. Kudryavtseva Department ofGeology, Moscow State University, 1198999 Moscow (U.S.S.R.) (Received...Prilenie Priangarie Ural Fmsh Koffiefontem Koffiefontein Premier Premier Roberts Victor Roberts Victor...inclusions of pyrope, olivine, orthopyroxene and Cr-diopside, whereas the eclogitic paragenesis is defined...defined by the presence of olivine, pyrope, Cr-diopside, chromite and nickel-rich sulphides. During the...Syngenetic inclusions in Jakutian diamonds. Leningrad State Univ., 143 pp. (in Russian). Deines, P., Gurney
	*Harlow, George E. (1996) Structure refinement of a natural K-rich diopside; the effect of K on the average structure. American Mineralogist, 81 (5) 632-638 doi:10.2138/am-1996-5-610*	Journal (article/letter/editorial)
	1996 Structure refinement of a natural K-rich diopside: The effect of K on the average structure GEORGE...K-rich natural pyroxene ever reported, a chromian diopside with 1.5 wt% K20, has been refined (diffractometer...inclusion in a Koffiefontein diamond. The refined structure is typical of clinopyroxene on the diopside-enstatite...distances (2.504 A) is slightly larger than for diopside (2.498 A). The effect of K on the average M2-0...of K is mostly offset by Mg + Fe in M2' in the diopside-like structure; this sizedistortion balancing
	Davies, Rondi M., Griffin, William L., O'Reilly, Suzanne Y., Doyle, Buddy J. (2004) Mineral inclusions and geochemical characteristics of microdiamonds from the DO27, A154, A21, A418, DO18, DD17 and Ranch Lake kimberlites at Lac de Gras, Slave Craton, Canada☆. Lithos, 77 (1) 39-55 doi:10.1016/j.lithos.2004.04.016	Journal (article/letter/editorial)
	isotope, nitrogen content, nitrogen aggregation state and morphological study of 576 microdiamonds from...Conference, extended abstracts) and Snap Lake to the south (Dokl. Earth Sci. 380 (7) (2001) 806), that are...study are sampled (black diamonds) and the Ekati mine property (grey diamonds). R.M. Davies et al. /...sulfide, Gt = garnet, Omph = Omphacite, Diop = diopside, fPer = ferropericlase, MgPvk = Mg, Si-perovskite...primary 41 78 Olivine9 Cr-pyrope Cr-spinel Sf Cr-diopside Opx Total UD Total Total diamonds 31 23 15
	Klein-BenDavid, Ofra, Wirth, Richard, Navon, Oded (2007) Micrometer-scale cavities in fibrous and cloudy diamonds — A glance into diamond dissolution events. Earth and Planetary Science Letters, 264 (1) 89-103 doi:10.1016/j.epsl.2007.09.004	Journal (article/letter/editorial)
	Phase relations and second critical endpoint in a K-free eclogite at 700 to 1400 °C. Earth Planet. Sci. Lett...rate is the same in the kimberlitic melts with a free fluid phase and in a pure H2O or CO2 fluid, suggesting...fibrous dia- monds typically has a low aggregation state (a-centers) suggesting short mantle residence time...Chromite Saline and carbonatitic HDF Silicic HDF Cr-diopside, Chromite, Olivine – + unknown + peridotitic...from the Koffiefontein mine South-Africa; diamonds UB 5– 41 and UB 3105 are from Yubileinaya mine, Russia;
	*Tomlinson, E.L., Jones, A.P., Harris, J.W. (2006) Co-existing fluid and silicate inclusions in mantle diamond. Earth and Planetary Science Letters, 250 (3) 581-595 doi:10.1016/j.epsl.2006.08.005*	Journal (article/letter/editorial)
	suite (Cr-pyrope, orthopyroxene, olivine and Cr-diopside) or the eclogite suite (omphacite). Therefore...fluid in a fibrous diamond coat from the Diavik Mine (Canada) range in composition from Na–K–Cl brine...diamonds from Koffiefontein (South Africa) [4]. Additionally, primary mantle minerals (Cr-diopside, chromite...the micro-inclusions in cloudy diamonds from Koffiefontein [5]. However, single phase mineral inclusions...of mantle-derived olivine, garnet, pyroxene (Cr-diopside and enstatite), chromite and ilmenite [16]. The
	*Klein-BenDavid, O. (2006) TEM imaging and analysis of microinclusions in diamonds: A close look at diamond-growing fluids. American Mineralogist, 91 (2) 353-365 doi:10.2138/am.2006.1864*	Journal (article/letter/editorial)
	Sample descriptions Three diamonds from the Diavik mine, Lac de Gras, Slave Craton, Canada, were analyzed...One fibrous cube, UB-5-41, from the Yubileinaya mine in Siberia with a central microinclusion-rich zone...1e and 1f). FIB milling was conducted in the oil-free, high-vacuum chamber of an FEI FIB2000 instrument...spectrum (Egerton 1996). The electron inelastic mean free path in diamond was calculated using the formalism...2002). (d) Mica-bearing diamond KFF-166 from Koffiefontein (Izraeli et al. 2004). × 1.7 μm2 area in the
	Mathias, M., Siebert, J. C., Rickwood, P. C. (1970) Some aspects of the mineralogy and petrology of ultramafic xenoliths in kimberlite. Contributions to Mineralogy and Petrology, 26 (2) 75-123 doi:10.1007/bf00371259	Journal (article/letter/editorial)
	in the kimberlites of Lesotho, Rhodesia, Sauth Africa, and Tanzania. Six new mineral assemblages, which...Johannesburg, South Ah'ica. ** Present address: School of Applied Geology, University of New South Wales, Kensington...specimens are nearly all from kimberlites in South Africa, Lesotho and Rhodesia. We do not claim t h a...and Rickwood (in press). The other, KM 2517 (Koffiefontein, O.F.S.), is a small (3 em diameter) garnet...purple ehromiferous garnet and emerald ehrome-diopside predominate. This latter nodule m a y well have

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Diopside from Koffiefontein Mine, Koffiefontein, Letsemeng Local Municipality, Xhariep District Municipality, Free State, South Africa

Diopside from
Koffiefontein Mine, Koffiefontein, Letsemeng Local Municipality, Xhariep District Municipality, Free State, South Africa