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Browsing Research Articles (Geology) by Issue Date
Now showing items 21-40 of 219
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(Blackwell, 2008-04)Please refer to abstract in article
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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 ...
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(Elsevier, 2008-04-05)A strong influence of microbial mats on the physics of Neoproterozoic sedimentation is explored within a 60 m-thick stratigraphic interval within the Sonia Sandstone, Jodhpur Group, western India. This marine interval is ...
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(Geological Society of South Africa, 2008-09)The oxygen content of cordierite was analysed in 30, well-characterised samples, using electron probe micro-analysis (EPMA). The major elements were assumed to be stoichiometric and therefore any remaining oxygen from the ...
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(Elsevier, 2009)A single metapelitic sample from the Verbaard locality, near Messina was investigated in order to construct a P–T path and moreover, highlight pertinent contradictions in the current P–T database. Interpretations based on ...
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(Elsevier, 2009)Global tracing of the key surfaces of Triassic deposits may contribute significantly to the understanding of the common patterns in their accumulation. We attempt to define synthems – disconformity-bounded sedimentary ...
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(Elsevier, 2009)The sparse Archean fossil record is based almost entirely on carbonaceous remnants of microorganisms cellularly preserved due to their early post-mortem silicification. Hitherto as an exception, sedimentary carbonate rocks ...
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(Geological Society of South Africa, 2009)Remnants of diamond-bearing fluvial gravels of Cretaceous age have been preserved on the Ghaap Plateau north-west of Reivilo at 1455 in above sea level. The alluvial deposit contains well preserved fossil woods representing ...
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(Muséum d'histoire naturelle de la Ville de Genève, 2009-06)Brachiopods were affected strongly by the Early Toarcian mass extinction within the Northern Caucasus, which at that time was a large region on the northern margin of the Neo-Tethys Ocean. However, their decline preceded ...
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(Academy of Science of South Africa, 2009-09)Complex structures in the sandstones of the Lower Jurassic aeolian Clarens Formation (Karoo Supergroup) are found at numerous localities throughout southern Africa, and can be assigned to five distinct architectural groups: ...
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(Current Science Association, 2009-10)Worldwide, chromitites compared to associated silicate rocks, are commonly characterized with elevated platinum group element (PGE) contents. The two prominent working chromite mines, Bangur and Baula in Orissa, were sampled ...
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(Southern African Institute of Mining and Metallurgy, 2009-10)The characterization of platinum group minerals (PGMs) from concentrator flotation circuits provides valuable information towards understanding PGM recovery under given milling and flotation conditions. Additional ...
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(Geological Society of South Africa, 2010)The Johannesburg Dome (JD) in the central Kaapvaal Cratoti (KC) is dominated by granitoid rocks of the tonalite-trondhjemite- KniiKKliorite (TTG) series. Ba.sed on modal analysis as well as a major atid trace element ...
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(Springer, 2010-04)Research into a new method for separating palladium from rhodium, based on radiochemical principles, necessitated a re-investigation of the Gmelins Handbuch data indicating that Rh has allotropes. Two independent and ...
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(Academic Journals, 2010-09)Chromitite samples were collected from a core from the Katpal chromite mine of Sukinda chromite field for characterization of mineralogy especially the platinum group minerals (PGM). Isotope dilution with High Pressure ...
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(South African Institution of Civil Engineering, 2010-10)Research was done to determine whether a relationship can be established between index testing and CBR (California Bearing Ratio) results. The process involved compiling a database of test results for a range of rock ...
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(Geological Society of South Africa, 2010-12)A 25 to 30 km wide magnetic anomaly within the >2.79 Ga granite-greenstone rocks of the northwestern Kaapvaal Craton is spatially associated with megabreccia outcrops near the village of Setlagole in the North West Province, ...
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(Elsevier, 2011)The application of the onset of supercontinentality, the “Great Oxidation Event” (GOE) and the first global scale glaciation in the Neoarchaean-Palaeoproterozoic as panacea-like events providing a framework or even ...
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(Polish Academy of Sciences, 2011)During Middle Triassic times, the Peri-Tethys Basin bordered the north-western Tethys shelf and was connected to the open Tethys Ocean via three seaways. Today, lower Muschelkalk carbonates of this epeiric sea cover large ...
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(South African Chemical Institute, 2011)Corrosion of rebar in concrete is commonly associated with, and to a large degree influenced by, the free chloride concentration in the pore water. It is standard industry practice to add various mineral admixtures such ...
Now showing items 21-40 of 219