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Dissertations / Theses on the topic 'Kaapval'

Author: Grafiati

Published: 14 June 2025

Last updated: 2 August 2025

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1

Chugunov, Aleksandr. "L'évolution de la composition du manteau de l'Archeen : les preuves du magmatisme du craton du Kaapval." Electronic Thesis or Diss., Université Grenoble Alpes, 2025. http://www.theses.fr/2025GRALU002.

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Les komatiites proviennent des laves les plus chaudes et les plus magnésiennes de la Terre et ont été utilisées comme sondes de l'évolution séculaire du manteau terrestre. Les phénocristaux d'olivine trouvés dans les komatiites archéennes se sont révélés être des conteneurs efficaces pour préserver les matières fondues de l'environnement extérieur. L'olivine étant le premier minéral à cristalliser dans la fonte komatiitique, les inclusions d'olivine à haute teneur en magnésium fournissent des informations uniques sur le manteau terrestre primitif.Cette thèse caractérise les fontes komatiitique

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2

Bekker, Andrey. "Chemostratigraphy of the Early Paleoproterozoic carbonate successions (Kaapvaal and Wyoming cratons)." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/28965.

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Evidence of three glaciations in Paleoproterozoic successions of North America and at least one on three other continents, suggests that these glaciations were of global extent. In common with the Neoproterozoic record, carbonates cap the glacials. However, the relationship between biogeochemical cycling of carbon and ice ages has not been fully appreciated. This research involved the sedimentology and isotope stratigraphy of carbonates and shales in Paleoproterozoic glacially-influenced successions of Wyoming and South Africa. Carbonates of the Vagner Formation cap the middle of three dia

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3

Larson, Angela Marie. "S-wave velocity structure beneath the Kaapvaal Craton from surface-wave inversions compared with estimates from mantle xenoliths." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/34200.

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Results from two-station surface-wave inversions across the Archean Kaapvaal craton of southern Africa are compared with seismic velocities estimated from approximately 100 mantle xenoliths brought to the surface in kimberlite pipes. As the xenoliths represent a snapshot of the mantle at the time of their eruption, comparison with recently recorded seismic data provides an opportunity to compare and contrast the independently gained results. These cratonic xenoliths from the southern Kaapvaal, all less than 100Ma in age, have been analyzed geothermobarometrically to obtain the equilibrium P-T

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4

Burger, Erasmus Petrus. "An Investigation of the carbonatites of the Kaapvaal Craton and their tectonic context." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/43297.

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Carbonatites are exotic rocks which usually occur in discrete intrusions. Considering the association of carbonatites with rifting environments, this dissertation proposes that: carbonatites occur in extensional tectonic settings and therefore carbonatite occurrence can be used to constrain an extensional setting for related occurrences. In order to give context in which to consider this hypothesis, the formation of carbonatites is reviewed. This work favours the direct mantle melting model as it is most relevant and consistent with observations of Kaapvaal Craton carbonatites. However t

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5

Schoene, Robert Blair. "A thermotectonic framework for the growth and stabilization of the eastern Kaapvaal craton, southern Africa." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/38251.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2006.<br>Includes bibliographical references.<br>Continents are an amalgamation of crust and mantle lithosphere assembled over -4 Gyr and are therefore our best record of the early Earth. Exposures of rocks -3.0-3.7 Ga cover -20,000 km2 of eastern S. Africa and Swaziland, and provide a record of the continental assembly and subsequent stabilization of the eastern Kaapvaal craton. This thesis uses structural, geochronological, thermochronological and isotopic constraints to examine the t

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6

Tinker, Justine. "Stratigraphic and structural interpretation of seismic reflection data across selected sections of the Kaapvaal Craton." Master's thesis, University of Cape Town, 2001. http://hdl.handle.net/11427/9739.

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Includes bibliography.<br>The Kaapvaal Craton is one of the best preserved of all Archean cratons. It is partially covered by the supracrustal sequences of the Witwatersrand, Ventersdorp and Transvaal Basin (and correlated Griqualand West Basin), which span almost a billion years (~3.1 to 2.2 Ga). This thesis describes and interprets eight newly available seismic reﬂection profiles, acquired by the vibroseis method to 6 seconds TWT, and totaling ~720 km in length. New stratigraphic and structural features are identified across three main regions: the Kaapvaal Craton's western margin, the north

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7

Sonwa, Cyrille Stephane Tsakou. "Analysis of the structural geology of the high-grade metamorphic rocks in part of the Kakamas terrane of an area adjacent to the Neusspruit shear zone South of the orange river, Northern Cape, South Africa." University of the Western Cape, 2021. http://hdl.handle.net/11394/8257.

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>Magister Scientiae - MSc<br>The Proterozoic Namaqua-Natal Province comprises highly deformed rocks of medium to high grade metamorphism and is bordering the Archean Kaapvaal Craton to the west, south and east in South Africa. The sector to the west of the Craton, namely the Namaqua Sector, is structurally complex and subdivided from west to east into the Bushmanland Subprovince, the Kakamas and Areachap terranes of the Gordonia Subprovince and the Kheis Subprovince. The prominent Neusberg Mountain Range, with exposures to the north and south of the Orange River in the Kakamas Terrane constitu

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8

Smildzins, V. (Viesturs). "Using mineral chemistry to constrain P-T conditions for mantle xenoliths from the Kaapvaal craton, South Africa." Master's thesis, University of Oulu, 2016. http://urn.fi/URN:NBN:fi:oulu-201611233107.

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Kimberlites are igneous rocks that originate by small degrees of melting of the mantle. Notably, kimberlites carry large variety of crustal and mantle xenoliths. Geochemical data on xenoliths can provide insights into the processes occurring in the subcontinental lithosphere (SCLM) and deeper. The Kaapvaal craton in South Africa hosts one of the best-studied kimberlite populations on Earth. In this thesis, a total of 24 thin sections of peridotite xenoliths from Group I Letlhakane, Letseng, Premier and Frank Smith kimberlites were investigated to constrain the pressure, temperature and depth

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9

Nethenzheni, Sedzani Shane. "The geochemistry, geochronology and petrogenetic characteristics of two granitic suites on the eastern margin of the Namaqua Sector, Namaqua-Natal Mobile Belt, South Africa." Thesis, University of the Western Cape, 2016. http://hdl.handle.net/11394/5209.

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>Magister Scientiae - MSc<br>The group of granites on the eastern margin of the Mesoproterozoic Namaqua sector of the polydeformed and highly metamorphosed Namaqua-Natal Province of southern Africa is known as the Keimoes Suite. The suite includes mixtures of diverse rock types not belonging to a single intrusive series and so it should be subdivided into more than one intrusive suite. The exact definition, extent, distribution and petrogenesis of these granites have been poorly defined in the past, with various authors defining the suite differently due to the lack of proper geochronology and

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10

Coetzee, Megan. "Geochemistry of selected South African group I, group II and transitional kimberlites located on and off the Kaapvaal craton." Master's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/4192.

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Includes bibliographical references.<br>Eighteen Jurassic to Cretaceous South African kimberlites representative of group 1, group 11 and transitional varieties that have been emplaced through both the Archean Kaapvall craton (on-craton) and Proterozoic Namaqua-Natal belt (off-craton), have been selected for a comparative study aimed at characterising their geochemistry and source region compositions, as well as understanding the petrogenetic processes that have affected them. The petrography of the analysed kimberlites is similar to typical group 1 and group 11 kimberlites, characterised by d

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11

Schneider, Kathrin [Verfasser]. "Constraints on the Magmatic History of Paleo- and Mesoarchean Meta-Igneous Rocks of the Eastern Kaapvaal Craton, Southern Africa / Kathrin Schneider." Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1176632248/34.

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12

Vezinet, Adrien. "Différenciation et stabilisation de la croûte continentale archéenne, l'exemple de la marge Nord du craton du Kaapvaal en Afrique du Sud." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSES054/document.

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Le travail de thèse reporté dans ce manuscrit se focalise sur la reconnaissance ainsi que l'expression des processus de différenciation crustale à l'Archéen. Cet éon représente à lui tout seul 1/3 des temps géologiques, et se caractérise notamment par des lithologies diagnostiques, ainsi que des contextes géodynamiques complexes. La majorité des études sont portées sur l’investigation des phases alumineuses qui permettent de contraindre précisément les événements métamorphiques au-cours d’une géodynamique d’épaississement crustal. Toutefois, ces phases alumineuses représentent rarement plus de

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13

Okafor, O. J. "Comparison of microbially induced sedimentary structures in the Palaeoproterozoic Magaliesberg (Transvaal Supergroup) and Makgabeng (Waterberg Group) Formations, Kaapvaal craton, South Africa." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/45922.

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The MRS/MISS of the Makgabeng Formation encompasses sand cracks, wrinkle marks, mat fragments, mat chips and roll-ups and those of the Magaliesberg formation are wrinkle marks, petees/petee ridges, sand cracks, and multi-directional ripples. The sedimentary process that moderated the formational mechanism of the MISS of the Makgabeng Formation is (descriptively allochthonous) of high energy (inter-dune depositional setting) that eroded, transported and re-deposited mat bound sediments. The genetic mechanism of the MISS of the Magaliesberg Formation is descriptively authochthonous because of en

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14

Laurent, Oscar. "Les changements géodynamiques à la transition Archéen-Protérozoïque : étude des granitoïdes de la marge Nord du craton du Kaapvaal (Afrique du Sud)." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2012. http://tel.archives-ouvertes.fr/tel-00846827.

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La composition chimique de la croûte continentale a significativement évolué à la transition Archéen-Protérozoïque (3000-2500 Ma), témoignant de changements géodynamiques majeurs à cette époque. Afin d'étudier l'expression et les origines de ces changements, qui sont encore mal contraints, j'ai étudié une diversité de granitoïdes qui se sont mis en place dans cette gamme d'âges à la marge Nord du craton du Kaapvaal, en Afrique du Sud. Ce travail a permis de préciser la typologie et l'origine des granitoïdes tardi-archéens ; ceux-ci peuvent être classés dans trois grands groupes : (1) Les sanuk

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15

Jolayemi, Olutula Olumayowa. "Chemical evolution of the Paleoproterozoic Rooiberg Group Kaapvaal Craton South Africa : new insights into the formation of a silicic large igneous province (SLIP)." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/63309.

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With an estimated erupted volume of 300,000 km3 and an areal extent of more than 200,000 km2, the Paleoproterozoic (2.06 Ga) silicic volcanic rocks of the Rooiberg Group (Kaapvaal Craton) in northern South Africa forms one of the largest and to the same time oldest silicic large igneous provinces (SLIPs) known. This large volume of rocks can be sub-divided into four formations: the Dullstroom, Damwal, Kwaggasnek and Schrikkloof Formations. The results of this study show that a clear chemostratigraphy (by using major elements such as TiO2, SiO2, Na2O, K2O, P2O2, MgO, and Fe2O3) can be est

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16

Xu, Baiquan. "Microfacies, Carbon and Oxygen Isotopes of the Late Archean Stromatolitic Carbonate Platform of the Kaapvaal Craton, South Africa: Implications for Changes in Paleo-environment." Diss., lmu, 2011. http://nbn-resolving.de/urn:nbn:de:bvb:19-137794.

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17

Poujol, Marc. "Etude U-Pb et Pb-Pb de la Murchison Greenstone Belt et du bassin aurifère d'Evander, Afrique du Sud : implications pour l'évolution du Kaapvaal Craton." Montpellier 2, 1997. http://www.theses.fr/1997MON20196.

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Cette étude présente de nouvelles données U-Pb et Pb-Pb sur le Central Rand Group du bassin aurifère d'Evander et sur la Murchison greenstone belt, Afrique du Sud. Le bassin aurifère d'Evander, non encore étudié d'un point de vue géochronologie, est localisé à l'est du bassin du Witwatersrand. L'étude des zircons détritiques donne une population essentiellement comprise entre 3050 et 2850 Ma, le plus vieux étant âgé de 3180 Ma. Elle permet aussi la mise en évidence d'une phase de croissance de zircon (ou de remise à zéro du système U-Pb de grains détritiques) reliée à la mise en place des lave

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18

Taylor, Jeanne. "The anatectic history of Archaean metasedimentary granulites from the Ancient Gneiss Complex, Swaziland." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/20311.

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Thesis (DSc)--Stellenbosch University, 2012<br>ENGLISH ABSTRACT: This study is an investigation of the anatectic history of high-grade paragneisses from the Ancient Gneiss Complex (AGC) in Swaziland. The work involved an integrated field, metamorphic, geochemical, geochronological and structural study of metasedimentary granulites from three separate, but spatially related areas of outcrop in south-central Swaziland, which were subjected to multiple high-grade partial melting events throughout the Meso- to Neoarchaean. The project has aimed to constrain the age(s) and conditions of metamo

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19

Nwaila, Tsundukani Glen [Verfasser], Hartwig Egbert [Gutachter] Frimmel, and Christoph [Gutachter] Gauert. "Geochemistry of Palaeoarchaean to Palaeoproterozoic Kaapvaal Craton marine shales: Implications for sediment provenance and siderophile elements endowment / Tsundukani Glen Nwaila ; Gutachter: Hartwig Egbert Frimmel, Christoph Gauert." Würzburg : Universität Würzburg, 2017. http://d-nb.info/1148279954/34.

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20

Baptiste, Virginie. "Stabilité et érosion du manteau lithosphérique subcontinental : Relations entre déformation, hydratation et percolation de fluides et magmas sous le craton du Kaapvaal et le Rift Est-Africain." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20139/document.

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Les travaux réalisés durant cette thèse apportent de nouvelles contraintes sur les relations entre déformation, hydratation et percolation de fluides et/ou de magmas dans le manteau subcontinental sous un craton et sous un rift, et leurs implications sur son comportement rhéologique. Il repose sur l'analyse des microstructures, des OPRs et des teneurs en hydrogène de xénolites mantelliques du craton du Kaapvaal, et sur deux séries de xénolites provenant de différentes localités le long du rift Est-Africain (Divergence Nord Tanzanienne et SE de l'Ethiopie). Les microstructures granulaires à gro

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Xu, Baiquan [Verfasser], and Wladyslaw [Akademischer Betreuer] Altermann. "Microfacies, Carbon and Oxygen Isotopes of the Late Archean Stromatolitic Carbonate Platform of the Kaapvaal Craton, South Africa : Implications for Changes in Paleo-environment / Baiquan Xu. Betreuer: Wladyslaw Altermann." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2011. http://d-nb.info/1018615792/34.

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22

Rouchon, Virgile. "Les processus de métasomatisme des formations volcano-sédimentaires paléoarchéennes des cratons du Kaapvaal (Afrique du Sud) et de Pilbara (Australie) : implications pour l'évolution chimique de l'océan et le cycle géochimique de l'azote." Paris 11, 2008. http://www.theses.fr/2008PA112046.

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L’altération des roches supracrustales archéennes implique des conditions environnementales encore mal contraintes qu’il est nécessaire de définir afin de mieux comprendre l’évolution des enveloppes externes au Précambrien, ainsi que les conditions d’émergence et de diversification de la vie. Le premier objectif de cette thèse est l’étude des métasomatismes des formations volcano-sédimentaires du Paléoarchéen, la caractérisation des mécanismes à leur origine, ainsi que la quantification des bilans géochimiques associés. Le deuxième objectif est l’étude de la composition isotopique de l’azote d

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Shu, Qiao [Verfasser], Gerhard [Akademischer Betreuer] Brey, Stefan [Akademischer Betreuer] Weyer, and Graham [Akademischer Betreuer] Pearson. "The formation and the geochemical and thermal evolution of the lithospheric mantle beneath the Kaapvaal craton recorded by subcalcic garnets from harzburgites and by pristine eclogites and garnet-pyroxenites / Qiao Shu. Gutachter: Gerhard Brey ; Stefan Weyer ; Graham Pearson." Frankfurt am Main : Univ.-Bibliothek Frankfurt am Main, 2013. http://d-nb.info/1044276266/34.

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Jaguin, Justine. "Datation et caractérisation de processus minéralisateurs à l'Archéen : Application à l'Antimony Line, Ceinture de Roches Vertes de Murchison, Afrique du Sud." Phd thesis, Université Rennes 1, 2012. http://tel.archives-ouvertes.fr/tel-00819281.

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Les circulations de fluides dans la croûte sont les vecteurs de mobilités élémentaires dont une des conséquences est la concentration de métaux et la genèse de gisements. Ces fluides circulent dans les zones de déformation où ils modifient la composition des roches encaissantes. Dans la ceinture archéenne de roches vertes de Murchison (Afrique du Sud), l'Antimony Line est une zone déformée qui a été le siège de circulations de fluides minéralisateurs en Sb-Au. Pour caractériser les processus minéralisateurs, des données pétro-géochimiques, en particulier en isotopes stables et inclusions fluid

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25

Durrheim, Raymond John. "A seismic investigation of the Kaapvaal craton." Thesis, 2015. http://hdl.handle.net/10539/17215.

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Tte structure of the Kaapvaal Craton of southern Africa invesirgated by means of deep seismic sounding using mine tremors as the energy source, and by deep seismic reflection profiling. Seranoneru "9 ware deployed at 10 km intervals on two profiles stretching between the major mine tremor source regions, 15 stout 250 km in length. Record sections have ocnpiled for both P- and S-waves, and the travel-times and anplitudes interpreted using ray-tracing techniques. Synthetic seismograms have also been oenputed using the reflectivity method. A 16 s two-way-time seismic reflection profile,

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Tyler, Perinne. "Archean sulfur reservoirs of the Kaapvaal Craton." Phd thesis, 2020. http://hdl.handle.net/1885/204737.

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Archean sulfur is recognized by anomalous isotopic signatures where D36S/D33S* = ~0.90. These signatures have been attributed to photolysis of SO2 in a low oxygen atmosphere and disappear from the rock concurrent with the timing of the Great Oxidation Event and the apparent rise in atmospheric oxygen. The main objective of this thesis is to examine the isotopic composition of sulfide minerals from different depositional environments and explore the mechanisms which preserve the anomalous signatures. The South African Witwatersrand and Pongola Supergroups are the primary study areas. Both are

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Gumsley, Ashley Paul. "Towards a magmatic ‘barcode’ for the south-easternmost terrane of the Kaapvaal Craton, South Africa." Thesis, 2013. http://hdl.handle.net/10210/8732.

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M.Sc. (Geology)<br>The south-easternmost Kaapvaal Craton is composed of scattered inliers of Archaean basement granitoid-greenstone terrane exposed through Phanerozoic cover successions. In addition, erosional remnants of the supracrustal Mesoarchaean Pongola Supergroup unconformably overlay this granitoid-greenstone terrane in the same inliers. Into this crust a variety of Precambrian intrusions occur. These are comprised of SE-, ENE- and NE-trending dolerite dykes. Also, the Hlagothi Complex intrudes into Pongola strata in the Nkandla region, particularly the quartzites of the basal Mantonga

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Prevec, Stephen A., Carl R. Anhaeusser, and Marc Poujol. "Evidence for Archaean lamprophyre from the Kaapvaal Craton, South Africa." 2004. http://eprints.ru.ac.za/107/1/sajsci_v100_n11_a11%5B1%5D.pdf.

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A suite of mafic dykes occurs as a late component in a wellcharacterized trondhjemite–tonalite–diorite–granodiorite assemblage in the Johannesburg Dome of the central Kaapvaal Craton, southern Africa. The dykes have been subdivided into two sets, based on their orientation, and major and trace element geochemistry. Set 1 dykes are characterized by elevated SiO2, Al2O3 and TiO2, and particularly by enriched LILE and HSFE (e.g. Zr > 200 ppm, Nb > 20 ppm, Ba > 300 ppm), higher than in any of the accompanying felsic rocks. REE and trace element values for Set 1 dykes are similar to those for calc-

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Sieber, Thomas. "Styles of hydrothermal alteration in archaean rocks of the Northern Kaapvaal craton, South Africa, with implications for gold mineralization." Thesis, 2014. http://hdl.handle.net/10210/9336.

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Ph.D. (Geology)<br>Shear zone controlled hydrothermal alteration zones in the northern Kaapvaal craton (NKC) are developed in host rocks of vastly different chemical composition and metamorphic grade. Some carry appreciable Au and base metals and some are barren. Alteration zones in three different distinctive crustal zones were examined in detail to determine the controls of these two types of alteration. 1. The Matok Complex is situated in the southern marginal zone (SMZ) of the Limpopo Belt (LB), close to the zone of rehydration. Two major stages of hydrothermal alteration could be identifi

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Schneiderhan, Eva Anita. "Neoarchaean clastic rocks on the Kaapvaal Craton : provenance analyses and geotectonic implications." Thesis, 2008. http://hdl.handle.net/10210/853.

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The provenance of the Neoarchaean Ventersdorp Supergroup and several age-related supracrustal successions was analysed to gain insight into the geotectonic evolution of the Kaapvaal Craton during the transition from the Archaean to Proterozoic Eras. The studied successions include, besides the siliciclastic formations of the Ventersdorp Supergroup, the upper Wolkberg and Buffelsfontein Groups, the Godwan Formation and the Schmidtsdrift Subgroup of the basal Transvaal Supergroup in Griqualand West. Petrographic, whole rock geochemical and Sm-Nd isotopic analyses were combined with SHRIMP U-Pb a

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Gold, Digby James Comrie. "The geological evolution of a part of the Pongola basin, southeastern Kaapvaal Craton." Thesis, 1993. http://hdl.handle.net/10413/1590.

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A stratigraphic and structural study of the Archaean Pongola Sequence on the southeastern Kaapvaal Craton centred on the area around the Klipwal Gold Mine is described. The lower predominantly volcanic Nsuze Group is overlain with a gradational transition by the upper clastic Mozaan Group in which six formations are recognized. The Sinqeni, Ntombe, Thalu, Hlashana, Odwaleni and the Kulphiso Formations. The Sinqeni and Hlashana Formations are predominantly arenaceous while the Ntombe and Kulphiso Formations are mainly argillaceous. The Odwaleni Formation contains a diamictite which is interpret

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Nwaila, Tsundukani Glen. "Geochemistry of Palaeoarchaean to Palaeoproterozoic Kaapvaal Craton marine shales: Implications for sediment provenance and siderophile elements endowment." Doctoral thesis, 2017. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-155326.

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The Kaapvaal Craton hosts a number of large gold deposits (e.g. Witwatersrand Supergroup) which mining companies have exploited at certain stratigraphic positions. It also hosts the largest platinum group element (PGE) deposits (e.g. Bushveld Igneous Complex) which mining companies have exploited in different mineralised layered magmatic zones. In spite of the extensive exploration history in the Kaapvaal Craton, the origin of the Witwatersrand gold deposits and Bushveld Igneous Complex PGE deposits has remained one of the most debated topics in economic geology. The goal of this study was to

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Jones, Michael Quentin Wilshire. "Heat flow and heat reproduction studies in the Namaqua mobile belt and Kaapvaal craton." Thesis, 2015. http://hdl.handle.net/10539/17473.

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Bailie, Russell Hope. "Mesoproterozoic volcanism, metallogenesis and tectonic evolution along the western margin of the Kaapvaal Craton." Thesis, 2010. http://hdl.handle.net/10210/3298.

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D.Phil.<br>The western margin of the Archean Kaapvaal Craton, at its contact with the polydeformed and metamorphosed Proterozoic Namaqua Province, is host to four volcanosedimentary successions of Mesoproterozoic age (1.1-1.3 Ga) that occur in close spatial and temporal association to each other. These are the Areachap Group, the Leerkrans Formation of the Wilgenhoutsdrif Group and the two volcanosedimentary successions that comprise the Koras Group. There has been protracted debate as to the exact nature, origin, age and tectonic evolution of these successions, particularly as they occur imme

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"Provenance ages and timing of sedimentation of selected Neoarchean and Paleoproterozoic successions on the Kaapvaal Craton." Thesis, 2009. http://hdl.handle.net/10210/1945.

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De, Kock Michiel Olivier. "Paleomagnetism of selected neoarchean-paleoproterozoic cover sequences on the Kaapvaal Craton and implications for Vaalbara." Thesis, 2008. http://hdl.handle.net/10210/905.

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The Kaapvaal craton of southern Africa and the Pilbara craton of Western Australia, two of the best-preserved Archean cratons in the world, are covered by remarkably similar early Precambrian cover sequences. This has led to the proposal of the so-called Vaalbara hypothesis, which promotes the existence of the two cratons as a single crustal entity, and possibly, Earth’s oldest assembled continent in Neoarchean-early Paleoproterozoic times. Previous studies have failed to prove the existence of Vaalbara conclusively, principally due to a lack of reliable ages or because of uncertainty and gaps

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Madisha, Moropa Ebenezer. "Carbonate alteration of serpentinite in the Murchison Greenstone Belt, Kaapvaal craton : implications for gold mineralization." Thesis, 2012. http://hdl.handle.net/10210/5846.

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Cochrane, Justin Michael. "Diagenetic carbonates and biogeochemical cycling of organic matter in selected Archean-Paleoproterozoic sedimentary successions of the Kaapvaal Craton, South Africa." Thesis, 2010. http://hdl.handle.net/10210/3288.

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M.Sc.<br>The Kaapvaal craton is one of few regions on earth with an almost continuous record of wellpreserved supracrustal rocks ranging in age from ~3.5 Ga to the late Paleoproterozoic at ~1.75 Ga. In this study diagenetic carbonates from the Paleoarchean Buck Reef Chert and Joe’s Luck Formation of the Swaziland Supergroup, the Mesoarchean Thalu and Promise Formations of the Mozaan/Witwatersrand Supergroups and the Paleoproterozoic Timeball Hill and Silverton Formations of the Transvaal Supergroup were sampled and analyzed. The aim of the study was to determine possible variations in the comp

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Hilliard, Paul. "Structural evolution and tectonostratigraphy of the Kheis Orogen and its relationship to the south western margin of the Kaapvaal Craton." Thesis, 1999. http://hdl.handle.net/10413/10830.

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Hanger, Brendan Joseph. "Redox conditions in the cratonic lithosphere and implications for metasomatism." Phd thesis, 2014. http://hdl.handle.net/1885/12231.

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The redox state of the cratonic lithosphere and its impact on metasomatism have been examined using garnet peridotite xenoliths from two kimberlite pipes (Wesselton and Kimberley) in the Kaapvaal Craton, South Africa. Conventional petrologic techniques, along with electron probe microanalysis (EPMA) and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), were used to characterise the samples and identify metasomatic events. Evidence of at least one such event was found in the Wesselton samples. Iron K-edge X-ray absorption near-edge structure (XANES) spectroscopy was use

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Van, Niekerk Hermanus Stephanus. "The origin of the Kheis Terrane and its relationship with the Archean Kaapvaal Craton and the Grenvillian Namaqua province in Southern Africa." Thesis, 2009. http://hdl.handle.net/10210/1974.

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D.Phil.<br>The tectonic history of the Kheis Terrane and its relationship with the Namaqua-Natal Metamorphic Province (NNMP) along the western margin of the Kaapvaal Craton were the focus of this study. Major issues addressed in this study are the origin and timing of formation of the Kheis Terrane and the recognition and definition of terrane boundaries in the area. Results of detailed measured sections across the Kheis Terrane, heavy mineral provenance studies, 40Ar/39Ar analyses of metamorphic muscovite, U-Pb SHRIMP dating of detrital zircon grains from 12 samples from the Kheis- and Kakama

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Crossingham, Alexandra. "Modelling of diamond precipitation from fluids in the lower mantle." Thesis, 2012. http://hdl.handle.net/10210/5004.

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Creighton, Steven. "The influence of mantle metasomatism on the oxidation state of the lithospheric mantle." Phd thesis, 2009. http://hdl.handle.net/10048/538.

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Thesis (Ph. D.)--University of Alberta, 2009.<br>Title from PDF file main screen (viewed on Oct. 16, 2009). "A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Geology, Department of Earth and Atmospheric Sciences, University of Alberta." Includes bibliographical references.

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Lazarov, Marina [Verfasser]. "Archean to present day evolution of the lithospheric mantle beneath the Kaapvaal craton : processes recorded in subcalcic garnets, peridotites and polymict breccia / von Marina Lazarov." 2008. http://nbn-resolving.de/urn:nbn:de:hebis:30-68730.

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Friese, Andreas Eberhard Walter. "The Tectono-Sedimentary evolution of the southern Free State Goldfield in the Witwatersrand Basin, with implications for the geodynamic evolution of the Kaapvaal Craton, South Africa." Thesis, 2020. https://hdl.handle.net/10539/31055.

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A thesis submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg in fulfilment of the requirements for the degree of Doctor of Philosophy, 2020<br>An attempt was made to place the proposed tectono-sedimentary evolution of the Free State Goldfield and the Witwatersrand Basin into the context of the geodynamic evolution of the Kaapvaal Craton, including the Zimbabwe Craton and Limpopo Central Zone Terrane, as all share a common and linked geodynamic evolution since the Neoarchaean. This was achieved through a comprehensive compilation and synthesis of a larg

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