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Browsing Research Articles (Geology) by Issue Date
Now showing items 1-20 of 245
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(Geological Society of South Africa, 1984-09)The Upper Triassic Molteno Formation of the Natal Drakensberg forms part of the upper Karoo Sequence. It rests with an erosional base on the Beaufort Group and has a gradational upper contact with the Elliot Formation. Four ...
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(Geological Society of South Africa, 1999)One hundred and forty five grains of laurite in polished sections of samples from one borehole through the major chromitite layers and some chromite-bearing silicate rocks of the Lower and Critical Zones of the western ...
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(Geological Society of South Africa, 1999)In his paper on the geometrical relations between the Transvaal Supergroup and the Bushveld Complex, Cawthorn ( 1998) argues that there is ·no need to infer a considerable period of pre-Rooiberg Group erosion prior to ...
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(Geological Society of South Africa, 1999)Investigation of a number of samples of UG2 Chromitite from the Brits-Marikana area revealed significant mineralogical variations. Most of the deviations from typical UG2 can be attributed to interaction with fluids at ...
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(Cambridge University Press, 2003-06)The compound ammonium D-gluconate (C6H11O7−NH4+) has been studied by X-ray powder diffraction. The powder diffraction pattern and data obtained at room temperature are presented (cell data and powder data summary).
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(Society for Sedimentary Geology, 2004)Sandstone pillars in the Lower Jurassic eolian strata of the Clarens Formation are concentrated in clusters, with up to four pillars within 25 m2 in two localities in the Tuli Basin of northern South Africa and southern ...
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(Geological Society of South Africa, 2006-09)The pegmatite deposits situated in the centre of a triangular area between the settlements of Vioolsdrif, Henkries and Steinkopf in the lower Orange River region constitute the westernmost extension of the Northern Cape ...
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(Geological Society of South Africa, 2006-09)The Lindeques Drift and Heidelberg Intrusions and the volcanic Roodekraal Complex belong to a high-Ti mafic igneous suite (HITIS) that was emplaced in the Kaapvaal Craton as km-sized bodies, to the north and north-east of ...
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(Elsevier, 2007-11)Although the principle of uniformitarianism may be applied to the Precambrian sedimentary record as a whole, certain periods of the Archaean and Palaeoproterozoic witnessed a changing pattern of prime influences controlling ...
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(Geological Society of South Africa, 2008)X-ray Fluorescence Spectroscopy (XRF) has reached the stage where it is classified as a mature analytical technique. The theoretical principles are well understood. In addition modern instrumentation demonstrates enhanced ...
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(Elsevier, 2008)Published literature argues that the Limpopo Belt can be subdivided into three zones, each with a distinctive geological character and tectono-metamorphic fingerprint. There are currently two contrasting schools of thought ...
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(Geological Society of South Africa, 2008)Gold-rich alloys with variable amounts of Pd from the Merensky Reef, Bushveld Complex, are characterized by a range of finely dispersed inclusions. The small sizes of these inclusions (median of 1,85 µm) make fully ...
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(Geological Society of South Africa, 2008)Two new assemblages (farms Christina and Moorfield) of plant fossils belonging to the Glossopterid flora are described from the northeastern part of the Main Karoo basin, within the Late Permian Normandien Formation, ...
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(Geological Society of South Africa, 2008)A suite of high-ti mafic to felsic igneous rock (acronym:HITIS) was emplaced at -2055 Ma as km-sized bodies to the South of the Bushveld Complex, South Africa, stretching from Parys and Potchefstroom in the south-west to ...
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(Geological Society of South Africa, 2008)A complex variety of casts of sand cracks occurs at two study areas near Pretoria, with in mature, thin sandstone beds of the c. 2.1 Ga Magaliesberg Formation (Pretoria Group, Transvaal Supergroup). This formation is ...
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(Blackwell, 2008)The reality of the global-scale sedimentation breaks remains controversial. A compilation of data on the Jurassic–Cretaceous unconformities in a number of regions with different tectonic settings and character of sedimentation, ...
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(Geological Society of South Africa, 2008-03)The Red Syenite deposit on the farm Zanddvierspoort 210 JF, located on the pedphery of the Pilanesberg Alkaline Complex, is considered here as a potential source of nepheline syenite, a material that is used as a flux in ...
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(Elsevier, 2008-04)This paper focusses upon two glauconitic sandstones in the Paleoproterozoic Deoland Formation and Chorhat Sandstone, both belonging to the Semri Group, central India. In both the cases glauconitic minerals occur in sandstones ...
Now showing items 1-20 of 245