 | | Report (issue) | | ZIMBABWE GEOLOGICAL SURVEY BULLETIN No. 90 The Erosion Surfaces of Zimbabwe L. A. LISTER, M.Sc., D.Phil...LIBRASĆ ZU - 06.01 Ćlungen ĆÆte Cstteilands 72& ZIMBABWE GEOLOGICAL SURVEY BULLETIN No. 90 iSRiC LIBRARY...Wagentngen, The Netherlands The Erosion Surfaces of Zimbabwe L. A. LISTER, M.Sc, D.Phil. ISSUED BY AUTHORITY...the erosion surfaces of Zimbabwe. She has lectured at the University of Zimbabwe since 1963 and this Bulletin...earlier authors had postulated. Cainozoic tilting in Zimbabwe, which raised the eastern margin of the country |  | | Book (edition) | | detailed geological survey of the AlnĆ© Island complex and announced his results in a series of papers...localities as inclusions in the limestoneāā (italics mine). Actually, the first published description of...completed most of the field work on the Iron Hill complex of Gunnison County, Colorado, in 1912-1913. Although...fairly pure calcite (Garson and Smith, 1958). The complex was first studied by F. Dixey, and it was he who...carbonatite dikes cutting the kimberlite of the Premier mine (p. 542) he classed as magmatic, but 1 Bowen admitted |  | | Journal (issue) | | Geological Society of Zimbabwe Newsletter October, 2009 Geological Society of Zimbabwe G Z S Newsletter...the threat of geo-hazards in Zimbabwe THE GEOLOGICAL SOCIETY OF ZIMBABWE, P.O. BOX CY 1719, CAUSEWAY...CAUSEWAY, HARARE Geological Society of Zimbabwe Newsletter October, 2009 Contents EDITORIAL ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦...Geological Society Representativeās report on the Zimbabwe School of Mines ... 13 New Geological map of Mozambique...ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦.. Geology Department, University of Zimbabwe ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦ā¦.. Geological Survey Department |  | | Report (issue) | | interest in the geo logy and mineral resources of Zimbabwe which followed the removal of United Nations sanctions...original Bulletin is the insertion of Table IIIA, Zimbabwe Mineral Production and Value, on page 114A. Due...for views of Wankie Colliery and the Trojan nickel mine, and to the Photographic Section of the Ministry...Introduction . Physical Features 3 The Basement Complex Sebakwian Group Bulawayan Group Shamvaian Group...Gneiss Complex Younger Granites . Felsites and Porphyries . Mineralization of the Basement Complex 5 9 |  | | Journal (article/letter/editorial) | | rocks in the area are those of the Ancient Gneiss Complex, dated at approximately 8850 m.y. (ALLsOPP et al...1969). HUNTER (1970) considers the Ancient Gneiss Complex to be the basement on which the Swaziland System...TROMPSBURG U USUSHWANA K KARRO0 CARBONATITES D-S - SHAWA / Onverwacht Basic Rocks 9 , (thin paper/ ~ C~//...Africa. - - Symposium on the Bushveld Igneous Complex and other layered intrusions, Geol. Soc. S.Africa...27, 114, 1970. HUNTER, D.R.: The Ancient Gneiss Complex in Swaziland. - - Trans. Geol. Soc. S.Africa, LXXIII |  | | Report (issue) | | interest was made in 1913 in the Turrett mining district in Colorado1 by W. B.. Thomas, but the enterprise.... Alley of an old prospect in the Rainy Creek district where vanadiferous ores were known to exist. This...originally developed. Later, other deposits in the same district and in other parts of the United States were discovered...Corundum Hill mine is reliably reported to persist at least as far as the 200 ft. level in the mine, which is...grade, 24 times in material from the Young River district, Australia, and 14 to 22 times in a chloritic |  | | Journal (article/letter/editorial) | | rocks), direct atmospheric leaching of the run of the mine (5ROM) ore with sulphuric acid will not be economically...Manchester, M4 4WT L.S.Campbell@ salford.ac.uk A complex history of growth and degradation of zircon from... in plutonic peralkaline rocks U is hosted by complex silicates and phosphates which represent refractory...ppm (up to a maximum of 1560 ppm). Mt. Pleasant mine, New Brunswick, Canada (style 2, Sinclair et al...exploration in Turkey. An understanding of this complex interplay of physical and chemical processes is |  | | Report (issue) | | Rare-Earth Mineral Deposits of the Mountain Pass District San Bernardino County California GEOLOGICAL SURVEY... Rare-Earth Mineral Deposits of the Mountain Pass District San Bernardino County California By J. C. OLSON...PROFESSIONAL PAPER 261 A geologic study of the district and its rare-earth-bear ing carbonate rocks. One...In 1854 lead ore was found in the Yellow Pine district (Potosi area) on the west slope of the Spring...to warrant the organization of a mining district, Clark district. Soon thereafter, the New York and Providence |  | | Report (issue) | | for foreign countries, if a given name refers to a mine or deposit, a nearby location or administrative...names may be used to refer to a single deposit or mine. For large deposits or mineralized areas, a 3 single...Deposit/Site_Name, is meant to identify the area, deposit, district, mine, or occurrence to which the geologic, economic...duplicates, for some areas we report information for a district or area, as well as for specific deposits or mines...Age, Host/Associated Lithology, Host Formation/Complex, Minerals, and Geologic Comments/Deposit Description |  | | Book | | Transvaal and Griquatown āSystemā, Bushveld Igneous Complex; 4, belts, folded and metamorphosed about 1300-110...USA Stratiform Ct, Fe-Ti-V, Cu-Ni-Pt, Bushveld Complex Carbonatite-associated deposits of Nb, V, P, RE...and the Yellowstone resurgent caldera and ring complex at its northeastern end (see Fig. 119). Southwestward...(1979) suggested that in the Ningi-Burra caldera complex of Nigeria, an initial mantle-derived melt underwent...part (about 120 km long) of the Great Dyke of Zimbabwe, published by permission of NASA. The Great Dyke |  | | Journal (article/letter/editorial) | | = SnāW). Mineral Chemical composition Line Actinolite Aegerine Aeschynite Akaganeite Alabandite Albite...mineralization may either be the product of a complex polyphase mineralizing process, reļ¬ecting a combination...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...and/or altered maļ¬c volcanic rock. Chlorite, actinolite and epidote give the green color. Duricrusts...you look for a mine look near a mineā. This includes the imperative āif you look for a mine look for smelting | | | Journal (article/letter/editorial) | | = SnāW). Mineral Chemical composition Line Actinolite Aegerine Aeschynite Akaganeite Alabandite Albite...mineralization may either be the product of a complex polyphase mineralizing process, reļ¬ecting a combination...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...and/or altered maļ¬c volcanic rock. Chlorite, actinolite and epidote give the green color. Duricrusts...you look for a mine look near a mineā. This includes the imperative āif you look for a mine look for smelting |  | | Book | | ............... . Pegmatites with Radioactive Complex Oxide Minerals ......... . . . .. . . ... . . Peg1natites...(Table 1.7) and occurs 111ainly in oxides, numerous complex (multiple) oxides, anhydrous phosphates, anhydrous...possibly as organic complexes. Although 1nany complex oxide minerals contain Nb, Ta, and Ti, U4 is not... green-Dy; red-Sm and Tb). Color The oxides, complex oxides, and silicates of U 4 and Th are usually...Thoriun1 minerals Simple oxides Complex oxides Simple silicates Complex silicates Simple phosphates Superge11e |  | | Book | | colour index. This is, without doubt, the most complex lithologie association to be handled from the point...exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best known example. Here...150-200 km and are up to 15 km thick. The entire complex is composed of over 800 mappable plutons and small...the magnetite orebodies, produced magnetite, actinolite, minor calcite, quartz, chalcopyrite, talc, etc...Batholith near Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay) |  | | Book | | colour index. This is, without doubt, the most complex lithologic association to be handled from the point...exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best known example. Here...150-200 km and are up to 15 km thick. The entire complex is composed of over 800 mappable plutons and small...the magnetite orebodies, produced magnetite, actinolite, minor calcite, quartz, chalcopyrite, talc, etc...Batholith near Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay) |  | | Book | | (0. K.), 1. KORNPROBST (France), 1. D. KRAMERS (Zimbabwe), M. J. LE BAS (0. K.), F. E. LLOYD (0. K.), R......................... 5.1 The Thghouaji Ring-Complex ...................... 5.2 Conclusion ...........Ma), Nigerian Younger granites (213 -141 Ma), Zimbabwe (205 - 200 Ma), West African craton (200-180 Ma);...the base of the Karoo sequence in southeastern Zimbabwe and northern Lebombo (Cleverly and 6 East African...lavas are coeval with carbonatites in eastern Zimbabwe, both yielding age determinations of ca. 205 - |  | | Book | | COMPLEXES By P. J. WyLuir The Duke Island ultramafic complex, southeastern Alaska By T. N. IRVINE Introduction...rocks The ultramafic complex Pegmatitic rocks Contact effects of the ultramafic complex Further petrogenetic... J. WYLLiE 135 Serpentinites of the Roxbury district, Vermont By RicHarp H. JAHNs III. A. Introduction...Dawson (Chapter 8-II-C) refers to these as ācentral-complex kimberlites,ā and they have been listed previously...Sahama (1962) has reviewed the petrology of this complex volcano. 3. An effusive equivalent of kimberlite |  | | Book | | Schists. Their initial attempt to interpret the complex structures of the Morar anticline was followed...and structure of the Moine Schists in the Morar district, western Inverness-shire. Abstract. Proc. geol...anticline and the structure of the Moine nappe complex. Abstract. Proc. geol. Soc. Lond., 1503, iii. A...intended as a venue for the consideration of the complex relationships that exist between irruptive activity...50 years has shown that the mountainland is a complex āschist beltā of folded sediments and volcanics |  | | Journal (issue) | | magnetisation of Upper Tertiary volcanoes, Nairobi district, Kenya . . . . Mean directions of magnetisation...features of the mantle rocks are reflected in complex patterns of surface outcrops and in a surface relief...occurs. Accompanying surface features show a more complex pattern of microrelief than gilgai. The area was...clinozoisite and garnet; green tourmaline and actinolite also occur (seeTable I). The light fractions...Nt1mber Description -----------Soluble Exchange complex 2Ā·88 3Ā·00 l Ā·95 4Ā·95 69 33 A 434, brown cracking |  | | Journal (issue) | | BechuanalandProtectorate Plate I Plate II Ootse Manganese Mine ā¢ ā¢ ā¢ 1. Loading manganese ore for beneficiation... Part of beneficiation plant Kgwakgwe Manganese Mine ā¢ 1. Manganese-ore stockpile 2. Crushing and screening...ā¢ ā¢ facing p. 390 ā¢ ā¢ ā¢ Moshaneng Asbestos Mine ā¢ ā¢ 1. No. 3 incline shaft 2. General view of mill...deposit ā¢ ā¢ ā¢ 2. Abandoned copper workings, Bushman Mine . Provisional Mineral Map of the Bechuanaland Protectorate...Concession and limited development at the Bushman Mine copper occurrence, however, little or no mining |  | | Book | | diamond. 61 Cr-poor Megacrysts from the Frank Smith Mine and the source regions of transitional kimberlites...Cho (D027 and D018) Diamondiferous Kimberlite Complex Slave Craton, Northwest Territories, Canada Doyle...C.J. The Kimberlite-Megacryst link at Monastery Mine. 314 Hauri, E.H., Pearson, D.G., Bulanova, G.P...kyanite-bearing eclogites from the Roberts Victor Mine, South Africa. Jacob, D.E., Kjarsgaard, B., Horn...Ben Ismail, W., Lloyd, G 458 460 466 469 471 Complex Origins and Multiple Ages of Mantle Zircon Megacrysts |  | | Report (volume) | | trend analysis in the evaluation of the Whalesback mine, Newfoundland" [ 1968], in Ore reserve estimation...trend analysis in the evaluation of the Whalesback mine, Newfoundland, in Ore reserve estimation and grade...the stratigraphy and structure of the Goldfield district, Esmeralda and Nye Counties, Nevada [abs.]: Geol...1968. 05411 Anderson, Gerald J. The Marquette district, Michigan, in Ore deposits of the United States...chronology in the Nigerdlikasik area, Frederikshaab district, in Report of activities, I 967: Gronlands Geol |  | | Book | | ATBARA AREA, SUDAN PORTLAND CEMENT 11 1. BASEMENT COMPLEX 33 COMPANY QUARRY (l) 38 THE BEND OF THE NILE...intrusions 17 (o) CLASSIFICATION OF BASEMENT COMPLEX FORMATIONS OF THE SUDAN 2. PALAEOZOIC FORMATIONS...BAHR EL AHMER, DERUDEB SHEET 461, AND KASSALA DISTRICT 31 (iii) Origin of the Nubian Sandstone Formation...HUDI CHERT FORMATION (f) JEBEL MARRA VOLCANIC COMPLEX (v) Regional description: Jebel Uweinat(vi) Regional...MATIONS 142 V. STRUCTURE 150 155 1. BASEMENT COMPLEX STRUCTURES DARFUR 155 155 (b) CENTRAL SUDAN |  | Kogel, Jessica Elzea, Trivedi, Nikhil C., Barker, James M., Krukowski, Stanley T. - Eds. (2006) Industrial Minerals and Rocks (7th ed.) Society for Mining, Metallurgy, and Exploration, Inc., Littleton, CO. | Book (edition) | | . . . . . . . . . . . . . . . . . . . . . . . . Mine Safety and Health Law . . . . . . . . . . . . ....substantial and wide-ranging changes and their complex ramifications for the industry. For example, numerous...as well as specialized industrial minerals, but complex interactions b etween consuming industries produce...omine, and rare-earth elements. In a lar ge diamond mine, for e xample, 50 percent o f the annual revenue...ality will often be significantly improved by complex processing. Low-cost rocks such as aggr egates |  | | Book | | and Technology . Pine Point Lead-Zinc Deposits ā District of Mackenzie, N.W.T. Facies Relationships and...Kootenay Group in road, stream and abandoned open-pit mine exposures in the western Foothills of Alberta (Stops...Creek Collieries Limited mine at Coal Mountain (Stop 9), the B.C. Coal Limited mine on Harmer Ridge (Stop...(Stop 10) and the Fording Coal Limited mine near Elkford (Stop 11). be seen in some of the geologic maps...cuts downsection between Grassy Mountain and Adanac mine, about 21 km along strike to the south, removing |
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