Environmental geological aspects of the dolomites of South Africa
The dolomite rocks in South Africa coincide for the most part with the so-called Pretoria-Witwatersrand-Vereeniging complex which comprises the industrial heart of the country. ... 1993. 0899-5362/93 $6.00+0.00 Printed in Great Britain 1993 Pergamon Press Ltd Environmental geological aspects of the dolomites of South Africa D. B. …
The distribution of the economic mineral resource potential in
Limestone/dolomite. Limestone is used for several applications, including cement manufacture, metallurgical flux, paper coating, water purification, steel production and as a neutraliser of acid soils. 2,11,12 Pure limestone is composed entirely of calcium carbonate; when it contains variable amounts of magnesium, it is called dolomite. 11 ...
(PDF) Geology of the Dolomites
The Dolomites region is a spectacularly exposed portion of the Southern Alps, a northern Italian chain derived from the comparatively gentle deformation of the Tethyan passive continental margin...
Limestone Industry, Kentucky Geological Survey, University of Kentucky
Two mines along the Ohio River in north-central Kentucky (Outer Bluegrass Region) are producing stone from the Camp Nelson Limestone for the manufacture of low-magnesium and high-calcium limes. The limes are used for flue-gas desulfurization at coal-fired power plants, and for steel-furnace flux, chemical manufacture, and water treatment.
The stratigraphic history of the Malmani dolomite in the …
I. INTRODUCTION The Malmani Dolomite constitutes an economic ally important stratigraphic entity, being the host to exploitable deposits of gold, lead zinc, manganese, …
LIME INDUSTRY IN SOUTH AFRICA, 2010
6 Limestone And Dolomite Deposits In South Africa 10 7 South Africa ˇs Local Sales Volume Of Lime, 2001-2009 11 ... 1 List of extensive resources of limestone in South Africa by province 10 2 South Africa ˇs local sales of lime by sectors, 2005-2009 12 3 South Africa ˇs exports and imports sales, 2001-2009 13 ... USGS, 2009. 6 FIGURE 3 ...
Formation of modern dolomite in hypersaline pans of the
Fig. 2. Map of (A) Yzerfontein Pan and (B) Zwartwater Pans, showing sample locations with sample pit names as referenced in Table 1. Dolomite in hypersaline pans of South Africa 1681 2011 The Authors.
Geology and mineral potential of Ethiopia: a note on geology and
Simplified geological map of Ethiopia. These rock assemblages represent 23%, 25%, 34% and 18% of the total surface area respectively. ... Limestone, gypsum, dolomite silica sand, common clay: Antalo Group, Agula Shale (Late Jurassic), 60–250 m ... such as the Barberton (South Africa) and the Birimian volcano-sedimentary belts in …
Geolex — Leadville publications
Pg. A5 (fig. 3), A18, A20 (fig. 9, isopach map). Leadville Limestone. Is an oil- and (or) gas-producing unit. Consists of yellowish-brown and light- to dark-gray, finely to coarsely crystalline, fossiliferous dolomite in lower part and limestone in upper part. Top of Leadville deeply eroded karst topography. Thickness up to 300 feet west of ...
Geolex — Manitou publications
Dominant lithology: Dolomite. AAPG geologic province: Denver basin. Publication: Cross, Whitman, 1894, Pikes Peak folio, Colorado, with a desccription of Cripple Creek special map by R.A.F. Penrose, Jr.: U.S. Geological Survey Geologic Atlas of the United States Folio, GF-7, 7 p., scale 1:125,000. Summary: Manitou limestone. Best …
Geological map and cross-section of the Rising Star …
DOI: 10.7554/eLife.09561.004 from publication: Geological and taphonomic evidence for deliberate body disposal by the primitive hominin species Homo naledi from the Dinaledi Chamber, South Africa ...
Cave formation – Maropeng and Sterkfontein Caves
Most caves including Sterkfontein – are formed by the dissolving action of weakly acidic rainwater, which seeps into the soluble rock through the soil. In ancient Neoarchaen times, 2.58-billion years ago, dolomite formed in …
An overview of the geology of the Transvaal Supergroup dolomites (South
Cases and solutions An overview of the geology of the Transvaal Supergroup dolomites (South Africa) P. G. Eriksson 7 W. Altermann Abstract In the Neoarchaean intracratonic basin of sitional stages, but mainly during early diagenesis. the Kaapvaal craton, between approximately Partial silicification was the result of diagenetic and 2640 Ma and 2516 …
The Geology of the Dolomites: What Makes These Mountains …
The special link between the Dolomites and geology is highlighted in their very name: the term derives from the mineral now known as 'Dolomite' (double calcium carbonate), which was first discovered in these mountains by the French scientist Déodat de Dolomieu (1750-1801), who traveled to South Tyrol several times and visited the Dolomites ...
Guidelines for Sinkhole and Subsidence Rehabilitation based …
2Department of Geology, University of Pretoria, Private Bag X20, Hatfield, 0028, Pretoria, South Africa +27 (0)12 420 2023 [email protected] Highlights: • Characterization of sinkholes and subsidence environments in terms of depth to dolomite bedrock. • Overview of generally successful rehabilitation techniques for the South Africa
3. GEOLOGICAL HISTORY OF THE …
geological map sheets 3318 (Theron, Gresse, ... dirty sandstone, limestone . and dolomite, with no clear regional m arker . ... on the West Coast of South Africa, consists of 542 Ma, intracaldera ...
Journal of the South African Institution of Civil Engineering
The Geology of South Africa. Johannesburg: Geological Society of South Africa /Pretoria: Council for Geoscience. [ Links ] Kleywegt, R J & Pike, D R 1982. Surface subsidence and sinkholes caused by lowering of the dolomitic water table on the far West Rand Gold Field of South Africa. Annals of the Geological Survey of South Africa, 16: …
The Mpumalanga/Limpopo Escarpment: Geology and Fluvial Landforms …
The Mpumalanga/Limpopo sector of the Great Escarpment of northeast South Africa is unique in its wide variety of rock types which have largely controlled the formation and morphology of the spectacular landscapes of the region. This chapter describes how epeirogenic uplift of the escarpment, followed by headward erosion by rivers into different ...
Dolomite Guideline
22 INTRODUCTION This booklet aims to give a short and clear sum-mary of the available guideline documents dealing with development on karst dolomite land in South Africa. …
An overview of the geology of the Transvaal …
In South Africa, the Malmani Subgroup has a sheet-like geometry (Eriksson and Altermann, 1998) and is divided into five …
A REVIEW OF THE DOLOMITE AND LIMESTONE …
The classification of limestone as defined by their magnesium carbonate content (MgCO3), is as follows: Magnesite consists of > 46 %magnesium carbonate, < 54% …
Guidelines for sinkhole and subsidence rehabilitation
A sound understanding of the various factors influencing and associated with the formation of sinkholes or subsidences on dolomite land is essential for the selection of appropriate rehabilitation methods. The investigation and rehabilitation of numerous sinkholes and subsidences located on dolomite in the East Rand of South Africa, …
Downloadable Material
General The following maps and documents may be freely downloaded and used by the public: Simplified Geological Map of South Africa (±A0 size) Mineral Maps …
DATABASE OF MINERAL International Workshop on UNFC …
The Geological Survey department has made considerable achievements under its statutory obligations. Regional Geological mapping has made available maps and data. y58% of the country has been geologically mapped. y123 quarter degree sheet areas mapped at 1: 100,000 scale (15 digital maps).
An overview of the geology of the Transvaal Supergroup …
In the Neoarchaean intracratonic basin of the Kaapvaal craton, between approximately 2640 Ma and 2516 Ma, two successive stromatolitic carbonate platforms developed. …
Dolomite: A sedimentary rock known as dolostone or …
Dolomite, also known as " dolostone " and " dolomite rock," is a sedimentary rock composed primarily of the mineral dolomite, CaMg (CO 3) 2. Dolomite is found in sedimentary basins worldwide. It is thought to …
Mapping the Distribution of Rock Types – Concord Consortium
Morrison's geology background was critical in accurately interpreting and translating the geologic data into a form for students. Untranslated data from the Hartmann and Moosdorf (2012) database. We are thrilled with the maps he has created for us. This first map is a world distribution map of igneous, metamorphic, and sedimentary rocks.
The CGS Launches The 1: 000 000 Geological Map
The Council for Geoscience, as the national custodian of all geoscience data in South Africa, has embarked on the development of an updated and digitally interactive …
Geologic resources of Belize, Belize Maps
The geological resources of Belize include oil, clays, barite, sand and gravel, granite, gypsum, quartz sand, dolomite and limestone. There are indications that Belize may have deposits of molybdenum in the Maya Mountains. Sites with high quality silica deposits have been identified. ... South and west of the country are the Maya Mountains ...
Geology and Occurrences of Limestone and Marble in …
to be limited to the western portions of the south and central parts of the country. ... Limestone, marble and dolomite in Nigeria may be conveniently grouped into three classes on the basis of geological age, as follows: the Precambrian marble, the Cretaceous limestone, and the Tertiary limestone. Figure 1. Geological map of Nigeria showing ...