Geology
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Geochemical evolution in defunct gold mine tailings and modelling of seepage water quality: an investigation of a typical tailings storage facility in the East Rand, Johannesburg, South Africa
(University of the Free State, 2022)The geochemical evolution in a defunct tailings dam was investigated in the East Rand Basin of the Witwatersrand. The research aimed to geochemically characterise the tailings, quantify oxygen infiltration into the ... -
A multi-isotope (S-Sr-Nd) investigation of the Flatreef, Northern Limb, Bushveld Complex: Petrogenetic implications and comparison with the Merensky Reef
(University of the Free State, 2022)Historically, research on the Bushveld Complex (BC) in the northern limb mainly focused on the near surface Platreef. The Platreef is well-known for being complicated and erratic due to significant degrees of country rock ... -
Geochemical and mineralogical characterization of the lithological units of the geodehoop colliery in the Witbank coalfield to fathom the source and the receptor of metals in the riet-olifants catchment, South Africa
(University of the Free State, 2022)The study aims to understand the element deportment's geochemical characteristics from the source, pathway and receptor realm in the Riet-Olifants catchment (ROC) drainage system. The ROC is part of the Olifants primary ... -
The allanite deposits on Vrede, Gordonia District, Cape Province
(University of the Free State, 1961-11)Allanite deposits of an unusual nature occur in two types of granulite on the farm. Vrede, portion of Cnydas West, Gordonia District, Cape Province. The granulites belong to the Archaean complex which is also represented ... -
A stratigraphic-structural investigation of an area south of Pofadder, Namaqua Mobile Belt, South Africa
(University of the Free State, 2021-12)The area of the Namaqua Mobile Belt investigated is situated in the eastern part of the Aggeneys Terrane (2-1.06 Ga), south of Pofadder in the Northern Cape. The mapping campaign covered an area of 1,350 km², in the eastern ... -
The Sr isotopic stratigraphy of the LCZ-UCZ transition in the Western Limb of the Bushveld Complex
(University of the Free State, 2021)Data on the modal mineralogy, whole-rock geochemistry, plagioclase mineral chemistry and Sr isotopic compositions in lithologies covering an interval of ~100 m across the Upper Critical Zone (UCZ) and Lower Critical Zone ... -
The parageneses of sulphide minerals in transgressive carbonatite of the Palabora Carbonatite Complex, South Africa
(University of the Free State, 2019-03)The Palabora Complex, also known as the Palabora Carbonatite Complex, is situated in the Limpopo Province, next to the town of Phalaborwa. The complex intruded the Kaapvaal Craton in early Proterozoic times. The centre of ... -
Interpretation of zircon coronae textures from metapelitic granulites of the Ivrea–Verbano Zone, northern Italy: two-stage decomposition of Fe–Ti oxides
(European Geosciences Union, 2017)In this study, we report the occurrence of zircon coronae textures in metapelitic granulites of the Ivrea–Verbano Zone. Unusual zircon textures are spatially associated with Fe–Ti oxides and occur as (1) vermicular-shaped ... -
Mechanisms of strain accommodation in plastically-deformed zircon under simple shear deformation conditions during amphibolite-facies metamorphism
(Elsevier, 2017)This study documents the strain accommodation mechanisms in zircon under amphibolite facies metamorphic conditions in simple shear. Microstructural data from undeformed, fractured and crystal-plastically deformed zircon ... -
The effect of crystal-plastic deformation on isotope and trace element distribution in zircon: Combined BSE, CL, EBSD, FEG-EMPA and NanoSIMS study
(Elsevier, 2016)Plastically-deformed zircon grains from granulite-facies (Ivrea-Verbano Zone, Southern Alps, Italy) and amphibolite-facies (Tauern Window, Eastern Alps, Austria) shear zones have been investigated. The main focus was on ... -
Die geologie in die omgewing van Britstown
(University of the Free State, 1977)Afrikaans: 'n Stratigrafiese kolom is met behulp van geologiese kartering en profiele vir die gebied opgestel. Die twee eenhede van die Ventersdorpgroep kan gekorreleer word met die eenhede in die Bothaville-omgewing. Die ... -
Die sedimentologie van die Soutpansbergsteenkoolveld met spesiale verwysing na steenkoolvorming
(University of the Free State, 1980)Afrikaans: Die Karoolae noord van die Soutpansberg is geleë in die Tshipise-kom wat tydens vorming deur oos-wesverskuiwings beheer is. 'n Hoë rug in die vloer verdeel die kom in die weste in 'n suidelike en 'n noordelike ... -
Die sedimentologie van die Etage Holkranssandsteen, sisteem Karoo
(University of the Free State, 1969)Afrikaans: 'n Regionale, sedimentologiese studie van die Etage Holkranssandsteen is gedurende Maart 1968 tot Maart 1969, in Natal, Noordoos-Kaapland, die Vrystaat en Lesotho, voltooi. Die etage is in drie rotsstratigrafiese ... -
A sedimentological study of the conglomerates in the Elsburg stage on the Welkom and Western holdings gold mines
(University of the Free State, 1970-12)A sedimentological description of the layers of conglomerate in the Elsburg Stage of the Witwatersrand System, as disclosed by 23 boreholes and underground development on the Welkom and Western Holdings Gold Mines in ... -
Structural-stratigraphic investigation of an area near Kakamas and environs, Namaqua mobile belt, South Africa
(University of the Free State, 2017-07)The study area is near Kakamas in the Northwest Cape and is located in the tectonostratigraphic Grünau Terrane - an accreted crustal fragment associated with the Mesoproterozoic Namaqua Province. The mapping campaign covered ... -
Syn- to post-intrusive deformation in the chromitiferous harzburgite unit of the Uitkomst Complex, Nkomati Mine, Mpumalanga Province
(University of the Free State, 2013-06)The mafic to ultra-mafic, intrusive Uitkomst Complex, situated some 20km northeast from the town of Badplaas in the Mpumalanga province of South Africa, contains a Chromitiferous Harzburgite unit that host a layer of massive ... -
The relationship between mineralisation and structure in the Pilgrim's Rest - Sabie gold-field
(University of the Free State, 1967-11)The area that was investigated, covers the metallogenetic province of the Sabie-Pilgrim's Rest Gold-field in the Eastern Transvaal. The geological formations include the Basement Granite, Godwan Formation, Wolkberg Formation, ... -
The geology of an area west of Welkom, O.F.S.: (degree blocks 2825 A and B and 2826 A)
(University of the Free State, 1980-10)Rocks present in the mapped area range from Early Precambrian (Easement granite) to the most recent deposits of aeolian sands, alluvium, gravel and calcrete. Outcrops of Ventersdorp rocks are scarce and widely scattered. ... -
Die geologie van die serie Stormberg in die sisteem Karoo, suid van Bethlehem, O.V.S.
(University of the Free State, 1964-08)Afrikaans: 'n Gebied tussen Bethlehem en Fouriesburg, waarin alle etages van die Etage Bo-Beaufort tot die Etage Drakensberg verteenwoordig is, is gekarteer asook die veldgegewens opgeteken. Oor geskikte roetes in die ... -
Quantitative evaluation of minerals in coal deposits in the Witbank and Highveld Coalfields, and the potential impact on acid mine drainage
(University of the Free State, 2003-05)A mineralogical and geochemical study on the coal and coal-bearing successions of the Witbank and Highveld Coalfields in the Mpumalanga Province of South Africa was proposed in order to, firstly, investigate the quantitative ...
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