 | 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) | | bultfonteinite and hydrogarnet in metasomatized basalt xenoliths in the B/K9 kimberlite, Damtshaa, Botswana: insights...volcaniclastic kimberlite of the B/K9 pipe, Damtshaa, Botswana, constrain conditions of kimberlite alteration...chemical potential gradients for Si and Mg. Hydrogarnet and serpentine replace these earlier metamorphic...bultfonteinite (ideally Ca2SiO2[OH,F]4) and hydrogarnet assemblages require a water-rich fluid containing...autometamorphism from deuteric fluids. Bultfonteinite and hydrogarnet are estimated to form at temperatures of ca. |  | Vapnik, Yevgeny, Palchik, Vyacheslav, Galuskina, Irina, Banasik, Kamila, Krzykawski, Tomasz (2018) Mineralogy, chemistry and rock mechanic parameters of katoite-bearing rock from the Hatrurim Basin, Israel. Journal of African Earth Sciences, 147. 322-330 doi:10.1016/j.jafrearsci.2018.06.020 | Journal (article/letter/editorial) | | Gross (1977) recognized minor quantities of hydrogarnet in calc-silicate-hydrate rocks and low-grade...Complex. Here, we report the 52 rocks with hydrogarnet content higher than 40 vol.%. The recognition...grains show zonation with pure “hydroandradite” central 256 core and katoite rim. According to electron...aggregates of 274 ferrian hydrosilicates and hydrogarnet (Fig. 6A). Magnesioferrite grains are about 10...kimberlite of 307 Damtshaa, Botswana, with formation of bultfonteinite and hydrogarnet is estimated to |  | | 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) | | Wesselton sills and Benfontein sills in Kimberley district, South Africa, and the Snap Lake sill, Northwest...include Snap Lake (Gernon et al. 2012b), AK6 in Orapa district, du Toitspan (Ogilvie-Harris et al. 2009),... Wesselton sills (White et al. 2012), and Orapa (Sarkar et al. 2011). Flow differentiation of suspended...aphanitic kimberlite sill from Wesselton, Kimberley district, South Africa, are surrounded by a clear zone...that the location of kimberlites in the Kimberley district is preferentially favored by low horizontal mean |  | 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) | | late-stage crystalisation. Secondary phases include hydrogarnet, a mixed-layer chlorite-vermiculite-montmorrilonite...was used together with 10 nA for calcite and hydrogarnet with a defocused beam of 5 μm. A ZAF correction...combinations of spinel, perovskite, titanomagnetite and hydrogarnet are observed. TGA-MS data (Figure 2a) show a...fluor-apatite, titanomagnetite, perovskite, and hydrogarnet. IH57 consists of calcite, serpentine-X, olivine...large range in Al2O3 (12–19 wt %). 5.7. Hydrogarnet Hydrogarnet occurs as clusters of subhedral grains |  | Abersteiner, Adam, Kamenetsky, Vadim S., Kamenetsky, Maya, Goemann, Karsten, Ehrig, Kathy, Rodemann, Thomas (2018) Significance of halogens (F, Cl) in kimberlite melts: Insights from mineralogy and melt inclusions in the Roger pipe (Ekati, Canada) Chemical Geology, 478. 148-163 doi:10.1016/j.chemgeo.2017.06.008 | Journal (article/letter/editorial) | | Tasmania, Hobart, Tasmania 7001, Australia. b Central Science Laboratory, University of Tasmania, Hobart...altered basalt xenoliths entrained in the Damtshaa kimberlite (Botswana; Buse et al., 2010). Fluorite is a rare...Paul et al. (1976) reported some kimberlites from central India containing NU even greater concentrations...constrained the temperature range for AC secondary hydrogarnet and bultfonteinite formation in basalt xenoliths...xenoliths from the B/K9 kimberlite (Botswana) to occur between 350 – 250 °C, which is a similar temperature |  | Koutsovitis, Petros, Magganas, Andreas, Ntaflos, Theodoros, Koukouzas, Nikolaos (2018) Rodingitization and carbonation, associated with serpentinization of Triassic ultramafic cumulates and lavas in Othris, Greece. Lithos, 320. 35-48 doi:10.1016/j.lithos.2018.08.027 | Journal (article/letter/editorial) | | ACCEPTED MANUSCRIPT Abstract The Othris region in Central Greece includes sub-oceanic crustal rocks of MiddleLate...Keywords: Wehrlites, Ultramafic lavas, Rodingites, Hydrogarnet, Triassic ACCEPTED MANUSCRIPT 1. Introduction...throughout the southern region of Othris Mountains in Central Greece. Similar volcano-sedimentary sequences of...of Triassic age have been reported in North and Central Greece (Pindos, Koziakas, Vardoussia, Evia, Iti...significantly influenced by these processes and hydrogarnet grains can be observed macroscopically. Rodingite |  | | 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...prehnite + clinopyroxene + amphibole + chlorite ± hydrogarnet ± pumpellyite ± white mica ± calcite, along with |  | | Journal (article/letter/editorial) | | into at least three crustal provinces viz. East, Central and West, based primarily on differing crustal...contact between the Eastern Dharwar (equivalent to Central Dharwar province) and Western Dharwar craton (Jayananda...groundmass of orangeites from the Bastar craton in central India, as well as from the Kaapvaal craton in South...Christian Reinke of the University of Johannesburg Central Analytical Facility for his assistance with the...bultfonteinite and hydrogarnet in metasomatized basalt xenoliths in the B/K9 kimberlite, Damtshaa, Botswana: insights |  | 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) | | hypabyssal kimberlite samples from: (a) the Diavik mine (Lac de Gras, Canada), and (b) the Gollapalle pipe...Letseng-la-terae (Lesotho), pseudomorphic core Lethlekane (Botswana) hypabyssal Lac de Gras, 93T33 kimberlite (Canada)...shown by different generations of perovskite in the Orapa and Wesselton pipes (southern Africa) to reflect...bultfonteinite and hydrogarnet in metasomatized basalt xenoliths in the B/K9 kimberlite, Damtshaa, Botswana: insights...origin of potassic sulphides at the Frank Smith Mine. In: Boyd, F.R., Meyer, H.O.A. (Eds.), The Mantle |  | Giuliani, A., Phillips, D., Fiorentini, M.L., Kendrick, M.A., Maas, R., Wing, B.A., Woodhead, J.D., Bui, T.H., Kamenetsky, V.S. (2013) Mantle oddities: A sulphate fluid preserved in a MARID xenolith from the Bultfontein kimberlite (Kimberley, South Africa) Earth and Planetary Science Letters, 376. 74-86 doi:10.1016/j.epsl.2013.06.028 | Journal (article/letter/editorial) | | veins, the thin sections were examined at the Central Science Laboratory, University of Tasmania, using...Goemann for assistance with FE-SEM work at the Central Science Laboratory, University of Tasmania. This...bultfonteinite and hydrogarnet in metasomatized basalt xenoliths in the B/K9 kimberlite, Damtshaa, Botswana: Insights...Hancox, P.J., 2005. The Karoo basins of south-central Africa. J. Afr. Earth Sci. 43, 211–253. Chambefort...Ni–Cu–(PGE) sulfide mineralization from Eastern Botswana. Econ. Geol. 107, 105–116. A. Giuliani et al |  | Afanasyev, A. A., Melnik, O., Porritt, L., Schumacher, J. C., Sparks, R. S. J. (2014) Hydrothermal alteration of kimberlite by convective flows of external water. Contributions to Mineralogy and Petrology, 168 (1) doi:10.1007/s00410-014-1038-y | Journal (article/letter/editorial) | | 10−14 m2 and 10−16 m2 Upon cooling, the upper central part of the pipe, furthest from the pipe margins...cooling occurs without serpentinisation leaving the central part of the pipe with fresh olivine. With increasing...maps of the A418 kimberlite pipe, Diavik Diamond Mine, NWT Canada, showing the geology exposed on the...eruption of the Jwaneng Centre kimberlite pipe, Botswana. J Volcanol Geothermal Res 174:195–208 Brown RJ...bultfonteinite and hydrogarnet in metasomatized basalt xenoliths in the B/K9 kimberlite, Damtshaa, Botswana: insights |  | Abersteiner, Adam, Kamenetsky, Vadim S., Graham Pearson, D., Kamenetsky, Maya, Goemann, Karsten, Ehrig, Kathy, Rodemann, Thomas (2018) Monticellite in group-I kimberlites: Implications for evolution of parental melts and post-emplacement CO2 degassing. Chemical Geology, 478. 76-88 doi:10.1016/j.chemgeo.2017.06.037 | Journal (article/letter/editorial) | | Building, Edmonton, Alberta, Canada T6G 2E3 Central Science Laboratory, University of Tasmania, Hobart...Nowicki et al., 2004) and is located in the east-central Archean Slave Province, Canada. The Leslie kimberlite...kimberlite sample LDC7 and Christian Dietz at the NU Central Science Laboratory (CSL) at the University of Tasmania...and hydrogarnet in metasomatized basalt xenoliths in the B/K9 kimberlite, Damtshaa, NU Botswana: insights...SiO2-poor aphanitic kimberlite from the Wesselton mine, Kimberley, South Africa. Am. NU Mineral. 73, |  | Fitzpayne, Angus, Giuliani, Andrea, Phillips, David, Hergt, Janet, Woodhead, Jon D., Farquhar, James, Fiorentini, Marco L., Drysdale, Russell N., Wu, Nanping (2018) Kimberlite-related metasomatism recorded in MARID and PIC mantle xenoliths. Mineralogy and Petrology, 112. 71-84 doi:10.1007/s00710-018-0573-z | Journal (article/letter/editorial) | | bultfonteinite and hydrogarnet in metasomatised basalt xenoliths in the B/K9 kimberlite, Damtshaa, Botswana: insights...their host phases in MARID xenoliths from the central Kaapvaal craton, South Africa. Geochim Cosmochim |  | 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...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...bultfonteinite and hydrogarnet in metasomatized basalt xenoliths in the B/K9 kimberlite, Damtshaa, Botswana: insights...kimberlite pipe - A historic South African diamond mine. In: Anhaeusser, C.R., Maske, S. (Eds.), Mineral |  | Abersteiner, Adam, Kamenetsky, Vadim S., Goemann, Karsten, Golovin, Alexander V., Sharygin, Igor S., Giuliani, Andrea, Rodemann, Thomas, Spetsius, Zdislav V., Kamenetsky, Maya (2019) Djerfisherite in kimberlites and their xenoliths: implications for kimberlite melt evolution. Contributions to Mineralogy and Petrology, 174 (1) doi:10.1007/s00410-018-1540-8 | Journal (article/letter/editorial) | | University of Tasmania, Hobart, TAS 7001, Australia 2 Central Science Laboratory, University of Tasmania, Hobart...Three mantle-derived xenoliths obtained from the mine dumps of the Bultfontein (Group I, or archetypal)...bultfonteinite and hydrogarnet in metasomatized basalt xenoliths in the B/K9 kimberlite, Damtshaa, Botswana: insights...origin of potassic sulphides at the Frank Smith mine. ln: The mantle sample: inclusions in kimberlites...(2007) Fluid inclusions in diamonds from the Diavik mine, Canada and the evolution of diamond-forming fluids |
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