 | | Report (chapter) | | palaeomagnetic data from the Kaapvaal Craton, South Africa Shawn Letts, Trond H. Torsvik, Susan J. Webb...palaeomagnetic data from the Kaapvaal Craton, South Africa SHAWN LETTS1,2, TROND H. TORSVIK1,3,4,5*, SUSAN...2050, South Africa 2 Anglo American, P.O. Box 61587, Marshalltown, Johannesburg 2107, South Africa 3 ...from the well-dated 2060.6 + 0.5 Ma Phalaborwa Complex in South Africa (Kaapvaal Craton) are of excellent...coeval 2054.4 + 1.3 Ma Bushveld Complex. The Phalaborwa and Bushveld complex poles, along with poles |  | Swayze, Gregg A., Lowers, Heather A., Benzel, William M., Clark, Roger N., Driscoll, Rhonda L., Perlman, Zac S., Hoefen, Todd M., Dyar, M. Darby (2018) Characterizing the source of potentially asbestos-bearing commercial vermiculite insulation using in situ IR spectroscopy. American Mineralogist, 103 (4) 517-549 doi:10.2138/am-2018-6022 | Journal (article/letter/editorial) | | Astronomy, Mount Holyoke College, 206 Kendade, South Hadley, Massachusetts 01075, U.S.A. 1 2 Abstract...Montana; Louisa, Virginia; Enoree, South Carolina; Palabora, South Africa; and Jiangsu, China, were measured...measured with a portable spectrometer. The mine sources for these vermiculite ores were identified based...vermiculite ore usually consists of a mixture of hydrobiotite and vermiculite mineral flakes). Band depth...from other commercial sources in the U.S.A. and South Africa do not contain nearly as much elongate amphibole |  | | Report (issue) | | concrete, etc., may be of exceptional local interest. In addition to local utilisation, there may also be export...COl\-11\ION\VEALTH COUNTRIES Union of South Africa South-West Africa ⢠Southern Rhodesia ⢠Canada ⢠⢠India...FOREIGN COUNTRIES ⢠⢠⢠Europe Portuguese East Africa Madagascar ⢠⢠United States ⢠⢠Argentina ⢠â˘...required to convert it into a usable product, find a local use in domestic and industrial thermal insulation...interest was made in 1913 in the Turrett mining district in Colorado1 by W. B.. Thomas, but the enterprise |  | | Journal (article/letter/editorial) | | KEYWORDS: Tanzania, Mozambique Belt, vermiculite, hydrobiotite. Vermiculite is the name given to a group of...vermiculite were mined from Mikese in Morogoro Rural District and processed in Dar-esSalaam where an experimental...to the difficulty of establishing a satisfactory local market for the product. Another vermiculite deposit...quality is to be found at Kwekivu area in Kilindi District but it is not mined due to the high costs associated...collected at the Mikese area in Morogoro Rural District (sample MK1: 06Âş47â08ââS and 37Âş54â35ââE and sample |  | | Journal (article/letter/editorial) | | from four attics. The trace-element distributions of Ba, Cr, and V can be used to distinguish the Libby vermiculite...the Libby and South Carolina deposits appeared similar, but differed from the South Africa and China deposits...certainty, grouped the garden samples with the South Africa ore. INTRODUCTION In the fall of 1999, the...miners who had worked in the now-closed vermiculite mine near Libby died from asbestos-related diseases caused...are from the Enoree district in South Carolina, the Palabora mine in South Africa, and the Xinjiang Province |  | ValĂĄĹĄkovĂĄ, Marta, KoÄĂ, Kamila, MadejovĂĄ, Jana, MatÄjovĂĄ, Lenka, PavlovskĂ˝, JiĹĂ, Barrocas, Beatriz Trindade, KlemencovĂĄ, KateĹina (2022) Îą-Fe2O3 Nanoparticles/Iron-Containing Vermiculite Composites: Structural, Textural, Optical and Photocatalytic Properties. Minerals, 12 (5) 607 doi:10.3390/min12050607 | Journal (article/letter/editorial) | | iron-containing vermiculite from the Palabora region (South Africa) and its samples, which calcined at... The photocatalytic activity of vermiculiteâhydrobiotiteâmica-like layers at different water hydration...respectively) of mica, hydrobiotite and vermiculite [8â10]. Vermiculite from the Palabora (South Africa) occurring...designated as a reference clay mineral sample named hydrobiotite [11]. The vermiculitization process of phlogopite...and heat-treated vermiculite from the deposit in Palabora [24]. Vermiculite and its samples calcined at |  | | Journal (article/letter/editorial) | | Museum no. 101,933. 6. Loolekop, Palabora, Northeast Transvaal, South Africa: Gevers, T. W. (1949) Vermiculite...Vermiculite at Loolekop, Palabora, Northeast Transvaal: Geol. Soc. South Africa Trans., v. 51, p. 154. 7. Loolekop...Loolekop, Palabora, Northeast Transvaal, South Africa: Gevers, W. T. (1949) Vermiculite at Loolekop,... Palabora, Northeast Transvaal: Geol. Soc. South Africa Trans., v. 51, p. 154. 8. Burnsville, 3 miles... v. 15, p. 22. II. Amba, eastern Sierra Leone, Africa. Dunham, K. C., Phillips, R., Chalmers, R. A., |  | | Journal (article/letter/editorial) | | vermiculite derived from phlogopite was from Palabora, South Africa, obtained from C. H. Kingsland, Lahabralite...followed by four water washes. The NaC1treated Palabora sample contained no detectable K, with the calculated...the vermiculites (with Ba as the exchangeable ion) for Mg, A1, Si, Fe, K and Ba was done with the X-ray...with ortho- LIBBY 14,o 12.1 2'8'3"'9"55 t SOUTH AFRICA 2.86 2.86 14.0 3.56 U Fig. 1. Oriented X-ray...X-ray diffraction patterns of <50 #m Palabora South Africa and Libby vermiculites after K-removal by |  | | Journal (article/letter/editorial) | | OF U6+ SORPTION COMPLEXES ON VERMICULITE AND HYDROBIOTITE E. ERIC A. HUDSON,1.t LOUIS J. TERMINELLO,I...Well-characterized samples of vermiculite and hydrobiotite were exposed to aqueous uranyl under conditions...sites or at amphoteric surface hydroxyl sites, The local stmcture of uranium in the sorption samples was...sorption mechanisms, uranyl retains a symmetric local structure suggestive of an outer-sphere complex...categories based on the sorption mechanism and the local structure of the mineral surface: (1) Ion-exchange |  | | Journal (article/letter/editorial) | | the dunite by pegmatite dikes. At Brinton Quarry, south of West Chester, Pennsylvania (Larsen, 1928; Gordon...bodies at the Gregory and Carl Moss properties south of Llano, Texas (Clabaugh and Barnes, 1959; and...Montana; Enoree, South Carolina; Tigerville, South Carolina; and Loolekop, Palabora, northeast Transvaal...and South Carolina deposits is mixed-layer vermiculite-biotite which has been called hydrobiotite by Gruner...layers are magnesium and calcium. The material at Palabora is mixed-layer vermiculite-phlogopite. The "vermiculite" |  | Cebula, D. J., Owen, M. C., Skinner, C., Stirling, W. G., Thomas, R. K. (1982) Observation of longitudinal acoustic phonons in layer-silicates by neutron inelastic scattering. Clay Minerals, 17 (2) 195-200 doi:10.1180/claymin.1982.017.2.04 | Journal (article/letter/editorial) | | Grenoble, France, and ~Physical Chemistry Laboratory, South Parks Road, Oxford, UK (Received 14 September 1981)...longitudinal acoustic phonons in crystals of hydrobiotite and muscovite was clearly demonstrated. It serves...EXPERIMENTAL Hydrobiotite The sample used in this study was a crystal of hydrobiotite from Palabora, South Africa...Laue-Langevin, 1981) was used for measurements on the hydrobiotite sample. The crystal was mounted on the spectrometer... 198 D . J . Cebula et al. reflection of the hydrobiotite occurred at only very small scattering angles |  | | Journal (article/letter/editorial) | | Amphibolite Facies (Text-fig. 1). PORTUGUESE EAST. AFRICA \ Tambane Perthlte-Syenite TEXT-FIG. 1.âGeological...Shire River at Mpatamanga Gorge at Lat. 15° 41' 49" South and Long. 34° 40' 50" West. It is conspicuous as..." (" The small hill that stands alone ") by the local Nyanja people. It shows up as a light coloured patch...500 feet wide with its long axis orientated north-south. Biotitite in Southern Nyasaland MACMES/TE VEINS...pegmatites. Occasional residual patches of black hydrobiotite indicate that the rock was formed by alteration |  | | Report (issue) | | Geological Surveys, Common wealth Institute Building, South Kensington, London, S.W.7 (KENsington 3264, Ex.... Geological Map of the Hangha Chromite Mining District, reduced from 1 : 2,500 Field Survey " Surface...North ,, 17 Surface Geology of the North and South Bendu Pits ,, 18 5 LIST OF TABLES Table I Analyses...Chromiferous Dunite from Amba Pit, Hangha Chromite Mining District, Sierra Leone. 2. Detail of Chromite Banding...EXISTENCE of chromite in substantial quantity in the south-eastern part of the Sierra Leone Protectorate was |  | | Book (edition) | | OF OF SOUTH AFRICA MINES GEOLOGICAL SURVEY MINERAL RESOURCES OF REPUBLIC OF THE SOUTH AFRICA...Second World War, and partly as a result of it, South Africa experienced vast industrial expansion. This...official âhandbook on the mineral resources of South Africa, it has become necessary to revise, or rather...great diversity and magnitude of South African mineral deposits and local mining operations, the Economic...Chamber of Mines of South Africa with Mr G. H. Grange as co-ordinator, and the South, African mining industry; |  | | Journal (article/letter/editorial) | | Na2 O and as trace elements: V, Cr, Co, Ni, Cu, Zn, Ba, Nb, Rb, Sr, Y, Zr, U, Th, Pb, S. To analyze the...ignition value. The minor elements detected were Cr and Ba with percentages of 0.17423 and 0.24772, respectively...at 11.15 Ă
(1-WLHS) [18] (JCPDS card 16-613); hydrobiotite with the most characteristic reflection at 12...in the second one (mixture of vermiculite and hydrobiotite with a little mica) was more expanded than exfoliated...adsorption compared to the mixture of vermiculite, hydrobiotite and mica. This aspect is important to select |  | | Book (edition) | | Venezuela, Brazil, Paraguay, Angola and South-West Africa, i.a. Carbonatites are now the major sources...Canada Brazil Greenland, Europe, and the U.S.S.R. Africa India APPENDICES REFERENCES LOCALITY INDEX SUBJECT...Society of South Africa and C. A. Strauss and F. C. Truter (1950A) : Geological Society of South Africa and...Society of South Africa and R. L. Johnson (1961) 6-12: Geological Society of South Africa and R. L. Johnson... Figure Figure 10-1: Geological Society of South Africa and S.J. Shand (1921A) 10-5: American Journal |  | | Report (volume) | | The Formation and Evolution of Africa: A Synopsis of 3.8 Ga of Earth History The Geological Society...) GONZALO VEIGA (ARGENTINA ) MAARTEN DE WIT (SOUTH AFRICA ) Geological Society books refereeing procedures... J. (eds) 2011. The Formation and Evolution of Africa: A Synopsis of 3.8 Ga of Earth History. Geological...palaeomagnetic data from the Kaapvaal Craton, South Africa. In: VAN HINSBERGEN , D. J. J., BUITER , S....WEBB , S. J. (eds) The Formation and Evolution of Africa: A Synopsis of 3.8 Ga of Earth History. Geological |  | | Book | | major producing districts, or a representative district if there are many. We name the chief mining companies...supply must come not merely from one district but from a single mine. Thus the physical properties of many...eclipsing the mineral magnesite in some areas; the trona mine rather than the Solvay plant is now the main source...comfort. Users of chromite, who must the USSR, South Africa, Albania, and wish that chromite deposits were...Republic of South Africa by the Department of Mines and the Geological Survey of South Africa; such profiles |  | | Book (volume) | | Y4â6^g02o(OH,F)4 where X is mainly K, Na or Ca but also Ba, Rb, Cs, etc. Y is mainly Al, Mg or Fe but also Mn...muscovite are as follows: For K: Na, Rb, Cs, Ca, Ba. For octahedral Al: Mg, Fe+2, Fe+3, Mn, Li, Cr, Ti...[Manganoan muscovite (b)j [Alurgite (c) Phengite Na Ba (H30)+ â â Octahedral Al replaced by â _ _ _ ...24(0,OH,F) Si A1 A1 Ti Cr Fe+Âť Zn Fe+a Mn Mg Li Ca Ba Na K Rb Cs (H.O) F OH 88}*â 3-975\ 6â05°"i l-95o/800...24(0,OH,F) SI Al Al Ti Cr Fe+â Zn Fe+> Mn Mg Li Ca Ba Na K Rb Cs (H.O) F OH 6-0331 1-967 J[>8-00 3-1131 |  | | Journal (article/letter/editorial) | | resilication product in bauxite, Alabama Street Mine, Arkansas 139 SiO2/Al203 ratio, effect on surface...associated with lignite, tonstein, abundance of Ti, Zr, Ba, St, A1 259 associated with lignite, tonstein, IR...talc-containing Ultisol, for Ca, Mg, K 227 vermiculite, Palabora, Na-, K-, Ca-forms 311 zeolite Y, Co-, Ni-exchanged...KELLER),Resilication of Bauxite at the Alabama Street Mine, Saline County, Arkansas, Illustrated by Scanning...the Rheology of Marine Clay from the Site of the South Nation River, Canada, Landslide of 1971, by J. K |  | | Journal (article/letter/editorial) | | Ca(UO2)2(PO4)2¡12(H2O) Ca2MgAl2(BO3)Si4O12(OH) Cu3(CO3)2(OH)2 ZrO2 (Ba,Sr)(Nb,Ti)2(O,OH)7 BaSO4 2Ca(SO4)¡H2O (Ce,La)(CO3)F...5)O10(OH)2¡n(H2O) Cu7Hg6 BaTiSi3O9 Ag8Sb0.5As0.5Te2S3 Ca,Mg,Mn7(Ba,Sr)6(CO3)13 Be2(BO3)(OH,F)¡(H2O) Fe2Al(Si,Al)O5(OH)4...CaCO3 Na6Ca2Al6Si6O24(CO3)2 Ag8SnS6 (Ca,Na)(Sr,Ce,Ba)(CO3)2 Tl2S KMgCl3¡6 (H2O) K2(UO2)2(VO4)2¡3H2O Co2CuS4...Pb(UO2)4O3(OH)4¡4(H2O) Zn-rich rhodonite (Zn,Al)3(Si,Al)2O5(OH)4 (Ba,P)(UO2)2(VO4)2¡5H2) Pb5Sn3Sb2S14 Ca5(PO4)2.5(CO3)0...Fe2.3Fe0.5Si2.2O5 (OH)3.3 CdS Na 1.74K 0.1(Ca, Sr, Ba)0.16CO3, Fe3S4 MnO(OH) HgBi2S4 Fe7(Si8O22)(OH)2 Bi2Se3 | | | Journal (article/letter/editorial) | | Ca(UO2)2(PO4)2¡12(H2O) Ca2MgAl2(BO3)Si4O12(OH) Cu3(CO3)2(OH)2 ZrO2 (Ba,Sr)(Nb,Ti)2(O,OH)7 BaSO4 2Ca(SO4)¡H2O (Ce,La)(CO3)F...5)O10(OH)2¡n(H2O) Cu7Hg6 BaTiSi3O9 Ag8Sb0.5As0.5Te2S3 Ca,Mg,Mn7(Ba,Sr)6(CO3)13 Be2(BO3)(OH,F)¡(H2O) Fe2Al(Si,Al)O5(OH)4...CaCO3 Na6Ca2Al6Si6O24(CO3)2 Ag8SnS6 (Ca,Na)(Sr,Ce,Ba)(CO3)2 Tl2S KMgCl3¡6 (H2O) K2(UO2)2(VO4)2¡3H2O Co2CuS4...Pb(UO2)4O3(OH)4¡4(H2O) Zn-rich rhodonite (Zn,Al)3(Si,Al)2O5(OH)4 (Ba,P)(UO2)2(VO4)2¡5H2) Pb5Sn3Sb2S14 Ca5(PO4)2.5(CO3)0...Fe2.3Fe0.5Si2.2O5 (OH)3.3 CdS Na 1.74K 0.1(Ca, Sr, Ba)0.16CO3, Fe3S4 MnO(OH) HgBi2S4 Fe7(Si8O22)(OH)2 Bi2Se3 |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Smithsonian Inst., Washington, D.C. Alan Pring: South Australian Museum, Adelaide, SA, Australia. Gunnar...10. India 11. South east Asia 12. Middle East 13. African Countries, from north to south 14. Oceania 15...15. Australia 16. Antarctica 17. South America The localities section includes a description of the...Oregon Pennsylvania Puerto Rico Rhode Isand South Carolina South Dakota Tennessee Texas Utah Vermont Virginia...Yukon States, Australia New South Wales Northern Territory Queensland South Australia Tasmania Victoria |  | | Journal (issue) | | INVESTIGATED IN OUR LABORATORY KNRPP 6 B.A.TESLIMITED AFRICA BOUSE, KINGSWAY, LONDON, W.C.2 Telephone : CHA...obscured by lateritisation. Introduction extends in a south-westerly direction from the northern shore of Lake...the smaller hills of Buzindere and Kigungu in the south, there is a low-lying stretch of land THE ENTEBBE...although the quartzites play an important part in the local topography. The second group, of Lower Permian age...deposit overlying the gneissic granite. To the south of No. 2 Runway of Entebbe Airport a superficial |  | | Report (issue) | | Ministry of Power â˘â˘â˘ â˘â˘â˘ Ministry of Housing and Local . .. ... Government ⢠⢠Board of Trade â˘â˘â˘ Atomic...â˘â˘â˘ 9 DISTRICT REPORTS: (A)-ENGLAND AND WALES: 1. South-West England and South Wales District, by F.... (a) South-West England ... .. . . .. . .. (b) South Wales .. . . .. . .. .. . .. . 2. South-Eastern...South-Eastern District, by S. C. A. Holmes, M.A. ... 3. West Midlands and Central Wales District, by V. Wilson, ...Midlands District, by Wilfrid .. . . .. Edwards, M.A.... . .. ... .. . 5. North-Western District, by J. |
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