https://vital.seals.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 The petrology and geochemistry of the upper critical zone of the Bushveld complex at the Amandelbult section of Rustenberg Platinum Mines Limited, Northwestern Transvaal, South Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:5037 Wed 12 May 2021 23:39:30 SAST ]]> The petrology, mineralogy and geochemistry of the main zone of the Bushveld Complex at Rustenburg Platinum Mines, Union Section https://vital.seals.ac.za/vital/access/manager/Repository/vital:4903 Wed 12 May 2021 23:39:12 SAST ]]> Geological factors affecting tonnage-grade relationships in orebodies of the Zambian Copperbelt https://vital.seals.ac.za/vital/access/manager/Repository/vital:21151 Wed 12 May 2021 23:36:07 SAST ]]> Geochemical exploration in arid and semi-arid environments https://vital.seals.ac.za/vital/access/manager/Repository/vital:4920 Wed 12 May 2021 23:21:47 SAST ]]> The concept of grade in mineral deposits https://vital.seals.ac.za/vital/access/manager/Repository/vital:5020 Wed 12 May 2021 22:46:03 SAST ]]> An investigation of the groundwater seepage and irrigation return flow of the Middleton area of the Great Fish River https://vital.seals.ac.za/vital/access/manager/Repository/vital:5035 Wed 12 May 2021 22:40:45 SAST ]]> The geology and alteration/mineralization of the Van Rooi's vley W/Sn deposit, Namaqua metamorphic complex, South Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:4924 Wed 12 May 2021 22:38:17 SAST ]]> Metallogenetic evolution of the Canadian Cordilleran Orogen https://vital.seals.ac.za/vital/access/manager/Repository/vital:5025 Wed 12 May 2021 22:33:56 SAST ]]> Mantle xenoliths from the Abrahamskraal kimberlite : a craton-margin geotherm https://vital.seals.ac.za/vital/access/manager/Repository/vital:4898 Wed 12 May 2021 22:24:24 SAST ]]> A review of asbestos resources https://vital.seals.ac.za/vital/access/manager/Repository/vital:4910 Wed 12 May 2021 22:17:18 SAST ]]> Clays derived from the Lower Dwyka Shales, occurring in the vicinity of Grahamstown https://vital.seals.ac.za/vital/access/manager/Repository/vital:4935 Wed 12 May 2021 20:32:00 SAST ]]> Gold fineness in hydrothermal ores : an investigation into the distribution of gold and silver in Southern Rhodesian gold ores https://vital.seals.ac.za/vital/access/manager/Repository/vital:5077 Wed 12 May 2021 20:30:09 SAST ]]> The petrology of the basalts of the Dordabis Formation in the vicinity of Dordabis in central S.W.A./Namibia| https://vital.seals.ac.za/vital/access/manager/Repository/vital:5062 Wed 12 May 2021 20:12:43 SAST ]]> The tectonic framework of magmatism and mineralization in the western United States https://vital.seals.ac.za/vital/access/manager/Repository/vital:5019 Wed 12 May 2021 20:00:52 SAST ]]> Reaction phenomena between Karroo Dolerite and cave sandstone xenoliths in the Bird's River complex https://vital.seals.ac.za/vital/access/manager/Repository/vital:4996 Wed 12 May 2021 19:49:04 SAST ]]> Discordant bodies of postcumulis, ultramafic rock in the upper critical zone of the Bushveld complex : iron-rich ultramafic pegmatite bodies at Amandelbult and the Driekop platiniferous ultramafic pipe https://vital.seals.ac.za/vital/access/manager/Repository/vital:4930 Wed 12 May 2021 19:35:22 SAST ]]> Metallogenic evolution of the southern Appalachian Orogenic Belt and Mississippi Valley https://vital.seals.ac.za/vital/access/manager/Repository/vital:5018 Wed 12 May 2021 19:35:20 SAST ]]> A review of unconformity-type uranium deposits https://vital.seals.ac.za/vital/access/manager/Repository/vital:4917 Wed 12 May 2021 19:30:07 SAST ]]> A review of the use of geophysics in base- and precious-metal exploration https://vital.seals.ac.za/vital/access/manager/Repository/vital:5015 Wed 12 May 2021 19:27:12 SAST ]]> The geology, petrology and geochemistry of the mineralization and hydrothermal alteration at Ongeama, Ongombo and Matchless West Extension, Namibia https://vital.seals.ac.za/vital/access/manager/Repository/vital:5045 Wed 12 May 2021 19:19:34 SAST ]]> The geochemistry and petrology of the Karoo andesites and associated basalts of the north-eastern Cape Province https://vital.seals.ac.za/vital/access/manager/Repository/vital:4902 Wed 12 May 2021 19:10:06 SAST ]]> The extrusive and intrusive basaltic rocks of the Molteno-Jamestown area https://vital.seals.ac.za/vital/access/manager/Repository/vital:4900 Wed 12 May 2021 19:06:25 SAST ]]> Granitoid related Sn-W mineralisation with special reference to southern Africa, the Variscan Belt in Europe, and the Malay Peninsula https://vital.seals.ac.za/vital/access/manager/Repository/vital:4908 Wed 12 May 2021 18:52:51 SAST ]]> The geology of a portion of the country between Witvlei and Omitara, South West Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:5052 Wed 12 May 2021 18:28:52 SAST ]]> The petrogenesis of the volcanic rocks of the Witwatersrand triad in the Klerksdorp area, Transvaal https://vital.seals.ac.za/vital/access/manager/Repository/vital:4909 11Oppm) are the most evolved. They are tholeiitic andesites which display fairly limited compositional variation. It is likely that more evolved compositions are present in other areas where the porphyritic lavas which characterize this unit are better developed. The overlying Orkney lavas are characterized by 110ppm>Zr>90ppm. They are tholeiitic andesites of similar composition to the Alberton lavas, but have lower incompatible element levels, higher siderophile element levels, and are of extremely uniform composition. The uppermost Loraine/Edenville lavas range from magnesian tholeiites to tholeiitic andesites. They are distinguished by Zr< 90ppm, and contain the most primitive magmas af the Witwatersrand triad, with up to 17,5% MgO, 2600ppm Cr, 600ppm Ni and M-values up to 77. The most primitive liquids evolved by 38% fractional crystallization of orthopyroxene ∓ chromite, followed by 35% fractional crystallization of an extract containing clinopyroxene and plagioclase. The absence of olivine precipitation is a result of the inherently high Si0₂ content of the magma. The Loraine/Edenville, Orkney and Alberton lavas do not lie on a common liquid line of descent, but are probably consanguinous. The Platberg Group overlies the Kliprivierberg Group, and has a coarse-clastic sedimentary unit, the Kameeldoorns Formation, at the base. Three petrographically distinct porphyritic lava sequences overlie the Kameeldoorns Formation, namely the informal "Goedgenoeg formation", the Makwassie quartz-feldspar porphyries and the Rietgat Formation. Despite petrographic differences, the Goedgenoeg and Rietgat lavas are chemically indistinguishable and thus form a single magma-type. The Makwassie porphyries are dacitic in composition with a high proportion of feldspar and quartz phenocrysts. Rational variation trends are attributed to a nett loss of Si0₂ during secondary alteration. The porphyries are probably of crustal origin. The Goedgenoeg/Rietgat lavas display unusual chemistry and a broad, irrational compositional spectrum. They contain very high incompatible element levels, high nonnative quartz, as well as high MgO, M-values, Cr and Ni relative to the other tholeiitic andesites of the Witwatersrand triad. It is tentatively suggested that they are hybrid magmas containing both crust and mantle components, the former possibly represented by the Makwassie porphyries. Field evidence suggests that Platberg volcanism commenced directly after Klipriviersberg volcanism ceased, and was accompanied by a period of enhanced tectonic activity. The Platberg lavas thus probably reflect a crustal melting cycle associated with the Klipriviersberg magmatic event. The Allanridge lavas are the youngest rocks of the Witwatersrand triad. They are separated from the Platberg Group by a unit of flat-lying sediments, the Bothaville Formation, which was deposited after an extended period of peneplanation. The Allanridge lavas form a separate magma-type. They are tholeiitic andesites of similar composition to the Alberton lavas, but have higher incompatible element levels and are not consanguinous. The compositional similarities amongst the basic magma-types of the Witwatersrand triad suggests that all were generated in an hydrous mantle. Interelement ratio differences between the various magma-types nevertheless support the concept that the mantle was chemically heterogeneous during the early Proterozoic.]]> Wed 12 May 2021 18:23:53 SAST ]]> Geodynamics, rifting, stratiform and stratabound mineral deposits https://vital.seals.ac.za/vital/access/manager/Repository/vital:5012 the major evolutionary changes in response to thickening and a greater rigidity of the sialic crust. Rifts are penetrative taphrogenic faults in the earths crust which act as major conduits for the transfer of magmas, from the mantle and lower crustal levels, to the upper crust and the surface. Rifts are also permeable zones for the migration of metalliferous brines, generated by magmatic differentiation. These metalliferous brines would either be exhaled at surface to form stratiform volcanogenic and volcanosedimentary ore deposits , or would interact with preferential host horizons to form stratabound ore deposits . The associat ion between rifting and stratiform and stratabound ore deposits is illustrated by examining :he tectonic setting, and st ratigraphic relationships of typical ore deposit types .]]> Wed 12 May 2021 18:01:51 SAST ]]> Anorogenic alkaline ring-type complexes of the Damaraland Province, Namibia, and their economic potential https://vital.seals.ac.za/vital/access/manager/Repository/vital:4907 Wed 12 May 2021 18:00:19 SAST ]]> The geology, geochemistry and silicate mineralogy of the upper criticial zone of the north-western Bushveld Complex, at Rustenburg Platinum Mines, Union Section https://vital.seals.ac.za/vital/access/manager/Repository/vital:5013 Wed 12 May 2021 17:57:35 SAST ]]> The geology, mineralogy and chemistry of the Grahamstown clay deposits https://vital.seals.ac.za/vital/access/manager/Repository/vital:5080 Wed 12 May 2021 17:40:04 SAST ]]> Molybdeunum mineralization with emphasis on porphyry systems genesis and exploration https://vital.seals.ac.za/vital/access/manager/Repository/vital:5023 Wed 12 May 2021 17:37:08 SAST ]]> The petrology of the Merensky cyclic unit and associated rocks and their significance in the evolution of the Western Bushveld Complex https://vital.seals.ac.za/vital/access/manager/Repository/vital:5006 Wed 12 May 2021 17:32:41 SAST ]]> The geology of the Miami Mica field (Urungwe District) https://vital.seals.ac.za/vital/access/manager/Repository/vital:5071 Wed 12 May 2021 17:14:24 SAST ]]> Review of carbonate hosted lead-zinc (copper) deposits and the geological factors affecting their shape, size and grade https://vital.seals.ac.za/vital/access/manager/Repository/vital:5028 Wed 12 May 2021 17:13:52 SAST ]]> Geological factors that influence the evaluation and exploitation of Canadian copper-zinc massive sulphide-, and Japanese polymetallic (kuroko) deposits https://vital.seals.ac.za/vital/access/manager/Repository/vital:4918 Wed 12 May 2021 17:10:52 SAST ]]> Mineralogy, petrology and geochemistry of the lower and lower critical zones, Northwestern Bushveld Complex https://vital.seals.ac.za/vital/access/manager/Repository/vital:4978 Wed 12 May 2021 17:05:18 SAST ]]> Risk analysis assessment of the influence of geological factors on exploration and mining investment alternatives : development of a microcomputer simulation model https://vital.seals.ac.za/vital/access/manager/Repository/vital:4904 Wed 12 May 2021 17:04:47 SAST ]]> The geology of the Shamrocke Mine and surrounding area, Rhodesia https://vital.seals.ac.za/vital/access/manager/Repository/vital:5070 Wed 12 May 2021 17:04:43 SAST ]]> The Patchway Gold Mine : a mineragraphic and petrographic examination of ore from the Patchway Gold Mine, Rhodesia, and an appraisal of the relationship between gold mineralisation and geological structure https://vital.seals.ac.za/vital/access/manager/Repository/vital:5069 Wed 12 May 2021 16:42:20 SAST ]]> A geological model of shear zone gold deposits in the Pietersburg Greenstone Belt, South Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:5032 Wed 12 May 2021 16:25:28 SAST ]]> A review of mineral exploration drilling with particular reference to Southern Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:4931 Wed 12 May 2021 16:20:24 SAST ]]> The geology and metallogeny of the Otavi mountain land, Damara orogen, SWA/Namibia, with particular reference to the Berg Aukas Zn-Pb-V deposit a model of ore genesis https://vital.seals.ac.za/vital/access/manager/Repository/vital:4959 Wed 12 May 2021 16:12:30 SAST ]]> The Late Cenozoic history and palaeoenvironments of the coastal margin of the south-western Cape Province, South Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:21068 Wed 12 May 2021 16:12:14 SAST ]]> The geological evolution and mineralised environments of the Tasman Geosyncline https://vital.seals.ac.za/vital/access/manager/Repository/vital:5030 Wed 12 May 2021 16:06:24 SAST ]]> A review of the economic geology of tungsten https://vital.seals.ac.za/vital/access/manager/Repository/vital:4897 Wed 12 May 2021 16:05:44 SAST ]]> Geological factors in the evaluation of vein deposits https://vital.seals.ac.za/vital/access/manager/Repository/vital:5029 Thu 13 May 2021 16:30:14 SAST ]]> The alluvial diamond deposits of the lower Vaal river between Barkly West and the Vaal-Harts confluence in the Northern Cape province, South Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:4933 Thu 13 May 2021 16:28:36 SAST ]]> A contribution to the petrology of kimberlites https://vital.seals.ac.za/vital/access/manager/Repository/vital:5024 Thu 13 May 2021 08:49:11 SAST ]]> Explanation of the geological map of the country east of Kariba https://vital.seals.ac.za/vital/access/manager/Repository/vital:5075 Thu 13 May 2021 08:49:03 SAST ]]> Gold metallogeny of Australia https://vital.seals.ac.za/vital/access/manager/Repository/vital:4928 Thu 13 May 2021 08:47:03 SAST ]]> The geochemistry and petrology of Karroo basalts of the Barkly East area, north eastern Cape https://vital.seals.ac.za/vital/access/manager/Repository/vital:5042 Thu 13 May 2021 08:46:24 SAST ]]> A study of phosphorus dynamics in the main basin of Swartvlei, September - December 1980 https://vital.seals.ac.za/vital/access/manager/Repository/vital:5016 Thu 13 May 2021 08:17:48 SAST ]]> The stratigraphy and structure of the Kommadagga subgroup and contiguous rocks| https://vital.seals.ac.za/vital/access/manager/Repository/vital:4919 Thu 13 May 2021 08:17:43 SAST ]]> The geology of the Bindura granite complex in Southern Rhodesia https://vital.seals.ac.za/vital/access/manager/Repository/vital:5073 Thu 13 May 2021 08:08:58 SAST ]]> Geological and economic factors affecting ore reserve estimation and grade control in porphyry type deposits https://vital.seals.ac.za/vital/access/manager/Repository/vital:4921 Thu 13 May 2021 07:40:38 SAST ]]> The tectono-metallogenesis during the irumide and pan-African events in South West Africa/Namibia https://vital.seals.ac.za/vital/access/manager/Repository/vital:4922 Thu 13 May 2021 07:29:57 SAST ]]> Vein and replacement type Sn and Sn-W mineralization in the Southern Kaoko Zone, Damara Province, South West Africa/Namibia https://vital.seals.ac.za/vital/access/manager/Repository/vital:5041 Thu 13 May 2021 07:15:19 SAST ]]> Gold mineralization in an archaean granite-greenstone remnant west of Melmoth, Natal ore genesis and implications for exploration https://vital.seals.ac.za/vital/access/manager/Repository/vital:4967 Thu 13 May 2021 07:10:40 SAST ]]> A review of the geology of primary tin deposits with emphasis on the factors that control grade and tonnage https://vital.seals.ac.za/vital/access/manager/Repository/vital:4912 Thu 13 May 2021 07:10:24 SAST ]]> Geology of the central and southern domains of the Koras Group, northern Cape Province https://vital.seals.ac.za/vital/access/manager/Repository/vital:5017 Thu 13 May 2021 07:06:48 SAST ]]> Petrology and geochemistry of the lower group chromitites and host rocks on the farm Zandspruit 168 JP, Western Bushveld Complex https://vital.seals.ac.za/vital/access/manager/Repository/vital:4905 Thu 13 May 2021 06:46:20 SAST ]]> The genesis of ilmenite-rich heavy mineral deposits in the Bothaville/Delmas area, and an economic analysis of titanium, with particular reference to the Dwarsfontein deposit, Delmas district https://vital.seals.ac.za/vital/access/manager/Repository/vital:4949 Thu 13 May 2021 06:37:34 SAST ]]> Stratigraphy and sedimentology of the Cape and Karoo Sequences in the Eastern Cape Province https://vital.seals.ac.za/vital/access/manager/Repository/vital:5004 minent constituent. This, together with the relative abundance of quartzfeldspar porphyry pebbles in the Katberg Sandstone unit (Beaufort Group) near East London, indicates that volcanic material probably formed a prominent part of the post-Dwyka Karoo provenance.]]> Thu 13 May 2021 06:36:27 SAST ]]> Geology and ore reserve estimation of the Witwatersrand-type gold deposits with specific reference to the Welkom Goldfield https://vital.seals.ac.za/vital/access/manager/Repository/vital:4911 Thu 13 May 2021 06:09:58 SAST ]]> Mineralogy and petrology of the Townlands iron-rich ultramafic pegmatite https://vital.seals.ac.za/vital/access/manager/Repository/vital:5040 Thu 13 May 2021 06:09:54 SAST ]]> Geochemical and mineralogical aspects of the Molteno Formation, South Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:4901 Thu 13 May 2021 06:08:55 SAST ]]> Sedimentology of the Katberg sandstone in the Eastern Cape Province https://vital.seals.ac.za/vital/access/manager/Repository/vital:5034 Thu 13 May 2021 06:06:20 SAST ]]> The nature and origin of gold mineralization in the Tugela valley, Natal Structural and Metamorphic Province https://vital.seals.ac.za/vital/access/manager/Repository/vital:4979 Thu 13 May 2021 06:05:23 SAST ]]> The Lumwana Copper Prospect in Zambia https://vital.seals.ac.za/vital/access/manager/Repository/vital:5072 Thu 13 May 2021 05:54:55 SAST ]]> A preliminary appraisal of the mineral potential of Venda based on a reconnaissance geochemical soil sampling survey and literature review https://vital.seals.ac.za/vital/access/manager/Repository/vital:4994 Thu 13 May 2021 05:53:21 SAST ]]> The Birds' River dolerite complex https://vital.seals.ac.za/vital/access/manager/Repository/vital:5043 Thu 13 May 2021 05:42:00 SAST ]]> The geology of a portion of south-western Albany https://vital.seals.ac.za/vital/access/manager/Repository/vital:5065 Thu 13 May 2021 05:22:33 SAST ]]> The behaviour of the elements Ni, Co, Cu, Pb, Zn, Au, Ag, Mo, Sn, W and U in the magmatic, hydrothermal, sedimentary and weathering environments https://vital.seals.ac.za/vital/access/manager/Repository/vital:4896 Thu 13 May 2021 05:04:21 SAST ]]> The significance of unconformities in the development of Witwatersrand gold and uranium placers https://vital.seals.ac.za/vital/access/manager/Repository/vital:4925 Thu 13 May 2021 04:52:27 SAST ]]> Mineralogy and petrology of two kimberlites at Dutoitspan Mine, Kimberley https://vital.seals.ac.za/vital/access/manager/Repository/vital:4929 Thu 13 May 2021 04:38:46 SAST ]]> A petrological and mineralogical study of peridotite and eclogite xenoliths from certain kimberlite pipes https://vital.seals.ac.za/vital/access/manager/Repository/vital:5044 Thu 13 May 2021 04:16:34 SAST ]]> A review of the sediment-hosted, disseminated precious metal deposits of Nevada : geological setting, classification, genesis and exploration https://vital.seals.ac.za/vital/access/manager/Repository/vital:4906 Thu 13 May 2021 04:14:58 SAST ]]> Geological factors affecting the grade and tonnage of sandstone uranium deposits https://vital.seals.ac.za/vital/access/manager/Repository/vital:5009 Thu 13 May 2021 04:02:19 SAST ]]> A mineralogical investigation of co-existing iron-titanium oxides from various igneous rocks with special reference to some South African titaniferous iron ores https://vital.seals.ac.za/vital/access/manager/Repository/vital:4926 Thu 13 May 2021 03:55:11 SAST ]]> Geology of part of the central Damara belt around the Tumas River, South West Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:5049 8500°) obtained from quarternary Qz-An-Ab-Or- H₂0 plots. The metamorphic grade increases westwards from medium grade to high grade. In the east, the metapelites contain andalusite, and coexisting muscovite and quartz. This indicates that temperatures of 6000° at 3,5- 4 kb pressure were attained. In the west, coexisting wollastonite and anorthite in the Khan gneisses indicate pressure- temperature conditions of 720° at 4,5-5 kb. Two tectonic events were responsible for the regional structure. An early F₁ episode produced east- west oriented overturned folds and was followed by an intense F₂ episode of isoclinal folding which is responsible for the dominant northeast - southwest regional fabric. The interference of these folds in the proximity of the underlying basement produced the complex dome and basin structures seen in the central and western parts of the area. An F₃ episode of minor importance was also recognized. The presence of continental basement rocks in this central part of the Damara belt is evidence for formation of the orogen by in-situ deformation rather than continental collision.]]> Thu 13 May 2021 03:54:54 SAST ]]> The Aapiesboomen magnesite deposit, Burgersfort, Transvaal https://vital.seals.ac.za/vital/access/manager/Repository/vital:21130 Thu 13 May 2021 02:58:38 SAST ]]> Turbidite-hosted gold deposits https://vital.seals.ac.za/vital/access/manager/Repository/vital:5010 Thu 13 May 2021 02:55:17 SAST ]]> A review of landscape development and erosion cycles in southern Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:4899 Thu 13 May 2021 02:49:59 SAST ]]> The petrology of the Khale dolerite sheet https://vital.seals.ac.za/vital/access/manager/Repository/vital:5076 Thu 13 May 2021 02:48:29 SAST ]]> The economic geology of the Okiep copper deposits, Namaqualand, South Africa https://vital.seals.ac.za/vital/access/manager/Repository/vital:4923 Thu 13 May 2021 02:46:56 SAST ]]> The geology of a portion of north-western Albany https://vital.seals.ac.za/vital/access/manager/Repository/vital:5068 Thu 13 May 2021 02:43:11 SAST ]]> The geology and alteration-mineralisation of the Gamigab Tin Prospect, Damaraland, Namibia https://vital.seals.ac.za/vital/access/manager/Repository/vital:4956 Thu 13 May 2021 02:29:28 SAST ]]> Geology of the Elisenheim area, Windhoek district, South West Africa, with special reference to the Matchless amphibolite belt https://vital.seals.ac.za/vital/access/manager/Repository/vital:5053 Thu 13 May 2021 02:16:54 SAST ]]> Sampling in the evaluation of ore deposits https://vital.seals.ac.za/vital/access/manager/Repository/vital:5008 Thu 13 May 2021 02:11:43 SAST ]]> The geology of the Vaal Reefs Gold Mine, Western Transvaal https://vital.seals.ac.za/vital/access/manager/Repository/vital:5078 Thu 13 May 2021 02:03:10 SAST ]]> The geochemical stratigraphy of the volcanic rocks of the Witwatersrand triad in the Klerksdorp area, Transvaal https://vital.seals.ac.za/vital/access/manager/Repository/vital:4932 Thu 13 May 2021 02:01:08 SAST ]]> The genesis and controls of gold mineralization south of Rehoboth, Namibia https://vital.seals.ac.za/vital/access/manager/Repository/vital:4948 Thu 13 May 2021 01:49:18 SAST ]]> Gold mineralization in archaean cherts and iron-formations a review of the economic geology https://vital.seals.ac.za/vital/access/manager/Repository/vital:4968 Thu 13 May 2021 01:27:27 SAST ]]> Crocidolite in the districts of Prieska and Hay https://vital.seals.ac.za/vital/access/manager/Repository/vital:21133 Thu 13 May 2021 01:17:18 SAST ]]> Aspects of the geochemistry of the Karroo dolerites and basalts of the north-eastern Cape https://vital.seals.ac.za/vital/access/manager/Repository/vital:5060 Thu 13 May 2021 01:16:07 SAST ]]> The factors affecting the interpretation of geochemical surveys in mineral exploration https://vital.seals.ac.za/vital/access/manager/Repository/vital:5014 Thu 13 May 2021 01:02:43 SAST ]]> The north gap dyke of the Transkei https://vital.seals.ac.za/vital/access/manager/Repository/vital:5031 Thu 13 May 2021 00:54:48 SAST ]]> Economic geology of sulphide nickel deposits https://vital.seals.ac.za/vital/access/manager/Repository/vital:5022 Thu 13 May 2021 00:43:24 SAST ]]> Geology and mine planning https://vital.seals.ac.za/vital/access/manager/Repository/vital:5027 Thu 13 May 2021 00:36:31 SAST ]]> Interpretation of mineralogical, chemical and morphological features of duricrusts and its application to mineral exploration https://vital.seals.ac.za/vital/access/manager/Repository/vital:5021 Thu 13 May 2021 00:19:23 SAST ]]> The amphibolite at Chibuluma Mine Zambia https://vital.seals.ac.za/vital/access/manager/Repository/vital:5066 Thu 13 May 2021 00:07:20 SAST ]]>