 | | Journal (article/letter/editorial) | | the discovery of diamonds in river deposits in central South Africa in the mid nineteenth century, it...valuable deposits were discovered in South Africa and Botswana in particular, but also in Lesotho, Swaziland...Jwaneng in Botswana, to mines that are both small and marginal, such as the Frank Smith Mine in South Africa...Africa. They include large diatremes such as Orapa and small dykes such as those mined at Bellsbank,...terrane; IIb: Central terrane; IIc: Pietersburg terrane; IId: Western terrane; IIIa: Central zone; IIIb: |  | Buse, Ben, Schumacher, John C., Sparks, R. Stephen J., Field, Matthew (2010) Growth of bultfonteinite and hydrogarnet in metasomatized basalt xenoliths in the B/K9 kimberlite, Damtshaa, Botswana: insights into hydrothermal metamorphism in kimberlite pipes. Contributions to Mineralogy and Petrology, 160 (4) 533-550 doi:10.1007/s00410-010-0492-4 | Journal (article/letter/editorial) | | basalt xenoliths in the B/K9 kimberlite, Damtshaa, Botswana: insights into hydrothermal metamorphism...volcaniclastic kimberlite of the B/K9 pipe, Damtshaa, Botswana, constrain conditions of kimberlite alteration...xenoliths within the B/K9 kimberlite pipe, Damtshaa, Botswana. There are few documented occurrences of...has been previously reported within cavities and dolerite and shale megablocks at the Lac de Gras (Canada)... 90 Ma) in the Orapa District, and consists of three coalesced pipes (north, central and south), which |  | | Journal (article/letter/editorial) | | (CaTiO3), a typical accessory phase, from Orapa (Botswana) and Wesselton (South Africa) kimberlites has...contamination. In-situ trace element signatures of Orapa and Wesselton perovskite grains are broadly similar...grain 87Sr/86Sr isotope ratios of perovskite from Orapa (0.7030–0.7036) are less scattered than bulk rock...pre-shallow level contamination magma compositions for Orapa and Wesselton have significantly fractionated LREE... the trace element and isotopic composition of Orapa and Wesselton kimberlites are similar to the reported |  | | Journal (article/letter/editorial) | | composition. 2. Geological setting Othris is located in Central Greece and consists of two main tectonostratigraphic...Quaternary alluvial deposits. Inserted map from central Greece is from Barth et al. (2008). P. Koutsovitis...to dolerites. They have been recognized in the central and southern parts of the Vrinena ophiolitic sequence...with uneven and gradational contacts with the central part, have also developed in several rodingitized...Gabbro Boninitic dolerite Boninitic dolerite Gabbro Dolerite Gabbro Dolerite Dolerite Dolerite Gabbro Gabbro |  | 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) | | Melbourne, Parkville, 3010 Victoria, Australia 6 Central Science Laboratory, University of Tasmania, Hobart...shales of the Dwyka formation, intruded by Karoo dolerite sills at ~181-185 Ma (Jourdan et PT al., 2007;...fresh sills in the ‘Water Tunnels’ of the Wesselton mine contain carbonates with SrO and BaO concentrations...olivines in kimberlites of SC RI the De Beers mine, Kimberley, South Africa. Carnegie Institute Washington...basalt xenoliths in the B/K9 kimberlite, Damtshaa, Botswana: insights into hydrothermal metamorphism |  | Willcox, A., Buisman, I., Sparks, R.S.J., Brown, R.J., Manya, S., Schumacher, J.C., Tuffen, H. (2015) Petrology, geochemistry and low-temperature alteration of lavas and pyroclastic rocks of the kimberlitic Igwisi Hills volcanoes, Tanzania. Chemical Geology, 405. 82-101 doi:10.1016/j.chemgeo.2015.04.012 | Journal (article/letter/editorial) | | volcaniclastic matrix of kimberlite at the Venetia mine, South Africa with low SiO2 and high FeO and Al2O3...concentrations and lower CaO and LOI when compared to the central and SW cones (Table 2). The NE cone shows the greatest...greatest variation in MgO and SiO2 whereas the central and SW cones are more restricted in composition...elevated Pb in IH1 (pyroclastic), IH20 and IH23 (central lavas). Elevated Pb is a feature of crustal contamination...aluminous crustal xenoliths and plagioclase in dolerite xenoliths. However, the IHV lavas show little |  | | Book (volume) | | W. Skinner, and Jv. A. Robey The Victor Diamond Mine, Northern Ontario, Canada: Successful Mining of...Eastern Dharwar Craton, Undraldoddi Area, Raichur District, Karnataka, India . . . . . . . . . . . . . ....Ali, J. Zhu, and P. Ellemers Kimberlites from Central Angola: A Case Study of Exploration Findings ....Geology and Evaluation of the K2 Kimberlite, Koidu Mine, Sierra Leone, West Africa . . . . . . . . . . ...Baffin Island, Nunavut: Canada’s Newest Diamond District . . . . . . . . . . . . . . . . . . . . . . . |  | | Book | | of Canada: A Synthesis of Major Deposit-types, District Metallogeny, the Evolution of Geological Provinces...avec l'editeur. Gold-rich specimen fro1n the Don,e Mine, Tim1nins, Ontario that was presented to GSC in...of Canada A Synthesis of Major Deposit-Types, .District Metallogeny, the Evolution of Geological Provinces...of Canada: A Synthesis of Major Deposit-Types, District Metallogeny, the Evo lution of Geological Provinces...Massive Sulphide Deposits of the Finlayson Lake District, Yukon Jan Pete,; Daniel Layton-Matthews. Stephen |
|
