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Dissertations / Theses on the topic 'Geology – Zimbabwe'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Musa, Caston Tamburayi. "Eluvial chromite resources of the Great Dyke of Zimbabwe." Thesis, Rhodes University, 2007. http://hdl.handle.net/10962/d1007731.

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Apart from the concentrations of chromite in layers within the Great Dyke and other ultramafic complexes, chromite also occurs as interstitial grains throughout the olivine-bearing rock-types. These olivine-bearing rocks include no rites, gabbros, dunites and pyroxenites. Chromite concentration in these rocks varies from 0.48 to 3.09 per cent of the rock, usually in the form of chromite (Ahrens, 1965; Worst, 1960). A small fraction of this chromite settled to form chromitite layers whilst the remainder is retained within the rock mass as finely disseminated chromite and chromite interstitial t

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2

Brown, Isobel Julia. "Geology and geochemistry of Archaean gold mineralization, Arcturus District, Zimbabwe." Thesis, Oxford Brookes University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.290402.

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3

Renner, Rebecca. "Cooling and crystallization of komatiite flows from Zimbabwe." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292223.

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4

Simango, Robert Zulu. "Gold exploration northeast of Ngundu Halt, northern marginal zone of the Limpopo Belt, Zimbabwe." Thesis, Rhodes University, 2004. http://hdl.handle.net/10962/d1005844.

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Gold exploration was conducted in northern margin, granulite-facies rocks of the Limpopo Belt. Methods used in the prospecting include drainage, soil and rock geochemistry, geophysical surveys, geological mapping, trenching and diamond drilling. These techniques successfully led to the discovery of two medium size, mesothermal gold deposits (Grid 2s and Grid 4). Objectives of this study were to (a) document the exploration methodology used; (b) describe the regional geology; (c) establish a mineral deposit model; (d) outline the methods and results of various exploration techniques; (e) outlin

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5

Murahwi, Charley Zvinaiye. "The geology of the Unki platinum-base metal deposit, Selukwe subchamber, great dyke, Zimbabwe." Thesis, Rhodes University, 1996. http://hdl.handle.net/10962/d1005574.

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This thesis focuses on platinu'm group element (PGE) mineralization in the Unki Section of the Selukwe Subchamber of the Great Dyke (Zimbabwe), and is based on drill hole intersections and underground and surface exposures of the Main Sulphide Zone (MSZ) which hosts significant concentrations of PGE. The petrological and geochemical data presented are part of a broader study currently underway and the present are restricted to the 2m section of the PGE-rich MSZ encountered in drill hole MR126. The PGE-rich MSZ at Unki is unique in having a shear, locally referred to as the Footwall Shear, deve

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6

Scholey, Stephen Philip. "The geology and geochemistry of the Ngezi group volcanics, Belingwe Greenstone Belt, Zimbabwe." Thesis, University of Southampton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334443.

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7

Fisher, Nicola Jane. "Deformation induced fluid flow and gold precipitation in banded iron-formation, Zimbabwe." Thesis, University of Southampton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238887.

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8

Armitage, Michael Graham. "The occurrence and distribution of gold in shear zones at Renco Mine, Zimbabwe." Thesis, University of Bristol, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.281878.

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9

Fedo, Christopher M. "Geologic evolution of the Archean Buhwa Greenstone Belt and surrounding granite-gneiss terrane, southcentral Zimbabwe." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-164845/.

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10

Johnson, Simon Paul. "Geodynamic evolution of the southern Chewore Inliers, Zimbabwe : evidence for 1.4 Ga marginal basin crust." Thesis, University of St Andrews, 1999. http://hdl.handle.net/10023/15585.

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This thesis reports the detailed study of 150 km2 of a newly discovered ophiolite terrane in the Chewore Inliers of northern Zimbabwe. It is apparently the oldest dated ophiolite (senso stricto) in Africa. Field and laboratory investigation of the Ophiolite Terrane (OT) shows that it comprises three distinct lithological groups. The Maunde Ophiolite Group is comprised of back - arc ophiolite - type assemblages, namely:-meta - mafic volcanics, sheeted meta - mafic dykes, meta - gabbro, meta - mafic cumulates and serpentinites. The Kaourera Island - Arc Group is comprised of a silica and potassi

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11

Kerr, Charles Henry. "An integrated remote sensing and geophysical investigation of the Gwanda greenstone belt, southern Zimbabwe." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243191.

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12

Mason-Apps, Alexander Dymoke. "The petrology and geochemistry of the lower pyroxenite succession of the Great Dyke in the Mutorashanga area." Thesis, Rhodes University, 1998. http://hdl.handle.net/10962/d1005602.

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This thesis focuses on the petrology and geochemistry of the lower Pyroxenite Succession of the Great Dyke of Zimbabwe in an area to the south ofMutorashanga. Particular emphasis is placed upon the economically important chromitite C5, and on the pervasive serpentinization of olivinerich rocks. An overview of the Great Dyke, including the Satellite Dykes, the structure and stratigraphy of the Great Dyke, the economic resources of the Great Dyke, and the evolution of the Great Dyke magma, is given. A review of the geodynamic history of the Zimbabwe Archaean craton, which culminated in widesprea

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13

Gilligan, Jonathan Mark. "The geology, geochemistry and genesis of gold mineralization associated with Archaean iron-formation, Lennox mine, Zimbabwe." Thesis, University of Southampton, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292080.

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14

Porter, Colin Wilson. "The tectonic evolution and fluid characteristics of gold-quartz veins at the Globe and Phoenix Mine, Zimbabwe." Thesis, University of Southampton, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241466.

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15

Bagai, Zibisani. "Geodynamic evolution and petrogenesis of the neoarchaean Francistown granite-greenstone complex in NE Botswana, SW margin of the Zimbabwe craton." Doctoral thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/4187.

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Includes abstract.<br>Includes bibliographical references.<br>The Archaean Francistown Granite-Greenstone Complex in NE Botswana is an integral part of the southwestern margin of the Zimbabwe Craton. It includes a suite of geochemically diverse Neoarchaean granitoids and mafic dominated-supracrustal assemblages. All the supracrustal rocks and mafic intrusions have undergone greenschist to lower amphibolite facies metamorphism, but most mafic intrusions have preserved original igneous textures. The Francistown Granite Greenstone Complex likely represents an arc complex that developed along an a

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16

Hofmann, Axel. "Sedimentology and tectonic history of late Archaean sedimentary successions in Zimbabwe a study in greenstone belt geology /." [S.l.] : [s.n.], 2001. http://ArchiMeD.uni-mainz.de/pub/2002/0026/diss.pdf.

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17

Zhou, Takawira. "Geology, regional diamond exploration and diamond provenance of the proterozoic diamondiferous Umkondo conglomerates, Umkondo group, eastern Zimbabwe." Thesis, Rhodes University, 2016. http://hdl.handle.net/10962/3598.

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The Umkondo Sedimentary Basin in eastern Zimbabwe has been studied by various individuals and organizations since 1901. Their interest had been in finding limestone and beryl and base metal deposits, especially copper, iron and uranium, but these occurrences had proved to be of no economic value (Watson, 1969). The recent discovery of placer diamonds within the Proterozoic basal conglomerates of the Umkondo Sedimentary Basin has now attracted worldwide interest in the basin’s diamond economic potential, in understanding of the geology, and the diamond provenance of the Umkondo conglomerates. T

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18

Landoll, John David. "The role of crustal interactions in the formation of cogenetic silica oversaturated and undersaturated syenites: evidence from the alkaline complexes of Abu Khruq (Egypt), Mt. Shefford (Quebec), and Marangudzi (Zimbabwe) /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487853913100352.

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19

Nicoli, Gautier. "The metamorphic and anatectic history of Archaean metapelitic granulites from the South Marginal Zone, Limpopo Belt, South Africa." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97041.

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Thesis (DSc)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Anatexis is the first step in granite genesis. Partial melting in the lower crust may produce leucoratic features of unusual chemical compositions, very different from the final products of crustal differentiation. Therefore, the links that exists between some migmatites and crustal-derived granites can be ambiguous. This study is an investigation of the anatectic history of a high-grade terrain: the Southern Marginal Zone of the Limpopo Belt (SMZ), north to the Kaapvaal Craton in South Africa. The work involved an integrat

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20

Dittrich, Thomas. "Meso- to Neoarchean Lithium-Cesium-Tantalum- (LCT-) Pegmatites (Western Australia, Zimbabwe) and a Genetic Model for the Formation of Massive Pollucite Mineralisations." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2017. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-228968.

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Lithium Cesium Tantalum (LCT) pegmatites are important resources for rare metals like Cesium, Lithium or Tantalum, whose demand increased markedly during the past decade. At present, Cs is known to occur in economic quantities only from the two LCT pegmatite deposits at Bikita located in Zimbabwe and Tanco in Canada. Host for this Cs mineralisation is the extreme rare zeolite group mineral pollucite. However, at Bikita and Tanco, pollucite forms huge massive, lensoid shaped and almost monomineralic pollucite mineralisations that occur within the upper portions of the pegmatite. In addition, bo

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21

Hartman, Louis W. "The geology of the Cam and Motor Mine." Thesis, 2015. http://hdl.handle.net/10539/17602.

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22

Glynn, Sarah Maeve. "Geochronology and evolution of the Magondi Belt." Thesis, 2017. http://hdl.handle.net/10539/23463.

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A thesis submitted to the Faculty of Science at the University of the Witwatersrand, in fulfilment of the requirements for the degree of Doctor of Philosophy in Geology. Johannesburg 2017.<br>The Magondi Belt is a NE-trending Palaeoproterozoic mobile belt, composed of a succession of supracrustal metasediments and minor metavolcanics that is subdivided into the Deweras, Lomagundi and Piriwiri Groups. The Magondi Belt is located in north-west Zimbabwe and is bounded on its eastern flank by the Archaean Zimbabwe Craton and the Pan-African Zambezi Belt to the north. A connection between the Super

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23

Manhica, Antonio dos Santos Tcheco. "The geology of the Mozambique belt and the Zimbabwe craton around Manica, Western Mozambique." Diss., 1998. http://hdl.handle.net/2263/28883.

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The study area comprises the Archaean Manica Greenstone Belt and the Vumba Granite Gneiss, the Proterozoic Messica Granite Gneiss of the Zimbabwe Craton, the possibly allochthonous metasedimentary sequence of the Frontier Formation, the granitoids of the Mozambique Metamorphic Province, which are subdivided into Vanduzi Migmatite Gneiss, the Chimoio Granodiorite Gneiss, the Nhansipfe Granitic Orthogneiss and the Pan-African Tchinhadzandze Granodiorite Gneiss. The rock sequences in the two provinces are cut by mafic intrusions. The greenstone belt comprises mafic to ultramafic and pelitic schis

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24

Hofmann, Axel [Verfasser]. "Sedimentology and tectonic history of late Archaean sedimentary successions in Zimbabwe : a study in greenstone belt geology / Axel Hofmann." 2001. http://d-nb.info/963778617/34.

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25

Becker, Jens Karl. "The emplacement of the Chinamora Batholith (Zimbabwe) inferred from field observations, magnetic- and microfabrics." Doctoral thesis, 2000. http://hdl.handle.net/11858/00-1735-0000-0006-B35F-B.

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26

Dittrich, Thomas. "Meso- to Neoarchean Lithium-Cesium-Tantalum- (LCT-) Pegmatites (Western Australia, Zimbabwe) and a Genetic Model for the Formation of Massive Pollucite Mineralisations." Doctoral thesis, 2016. https://tubaf.qucosa.de/id/qucosa%3A23157.

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Lithium Cesium Tantalum (LCT) pegmatites are important resources for rare metals like Cesium, Lithium or Tantalum, whose demand increased markedly during the past decade. At present, Cs is known to occur in economic quantities only from the two LCT pegmatite deposits at Bikita located in Zimbabwe and Tanco in Canada. Host for this Cs mineralisation is the extreme rare zeolite group mineral pollucite. However, at Bikita and Tanco, pollucite forms huge massive, lensoid shaped and almost monomineralic pollucite mineralisations that occur within the upper portions of the pegmatite. In addition, bo

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