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geology and a petrographical description of the nepheline syenites and various allied rocks. ... tioned below, a table of the Transvaal formations is entered (see Table I). ... the Pretoria series and the Dolomite series, and intrusive sheets of red and grey syenite are found in .

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Although dolomite rock products normally reflects a decrease in results show that most sinkholes (>50%) is relatively impervious (porosity less than 0.3%) and insoluble in pure water, Table 1 S inkhole diameters in the area south of Pretoria (after: Schőning 1990) rainwater which has become charged with Sinkhole diameter carbon dioxide in its ...

Geology. The Magaliesberg has ancient origins. Its composition is ascribed to successive geological processes over a very protracted history. Its quartzites, shales, chert and dolomite were deposited as sediments in an inland basin on top of a 3 billion year old Archaean Basement Complex, known as the Kaapvaal Craton.This process of sedimentation lasted for about 300 .

dolomite c. geochemistry of the malmani dolomite 12* d. bituminous material in tht carbonaceous mudstones 122 e. the significance of the pretoria group sediments 122 f the potential of the malmani dolomite subgroup 123 for lead-zinc deposits i

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Republic of South Africa It should be understood that this paper is intended only to provide guidelines for hazard and risk assessment and A. van Schalkwyk (Y) that it does not cater to all possible geological conditions Department of Geology, University of Pretoria, Pretoria 0002, Republic of South Africa or types of land development on ...

Sep 08, 2014· Pretoria – Gauteng MEC of Human Settlements and Co-operative Governance and Traditional Affairs, Jacob Mamabolo, says a mixed housing plan will be ideal for areas affected by dolomite.. The impact of dolomite, an underground soil condition, on housing developments in Gauteng continues to create high tensions between local government and communities, especially in areas .

The geology of an area south of Pretoria with specific reference to dolomite stability . by . Nicole Yvette-Marie Ghislaine Trollip . Dissertation . Submitted in partial fulfilment of the requirements for the degree . MASTER IN SCIENCE . in . ENGINEERING AND ENVIRONMENTAL GEOLOGY . in the . FACULTY OF NATURAL AND AGRICULTURAL SCIENCES . at the ...

Jan 01, 1993· Journal of African Earth Sciences, Vol. 16, No. 1/2, pp. 25-51, 1993. 0899-5362/93 $6.00+0.00 Printed in Great Britain 1993 Pergamon Press Lid The Transvaal Sequence: an overview P. G. EpaxssoN, J. K. SCHW~nZZR~, P. J. A. Bosch2, U. M. SCHEREIBER, J. L. VAN DEVE~TER3 and C. J. HATTON4 Dept of Geology, University of Pretoria, Pretoria 0002, South Africa ICOMRO, P. O. .

In South Africa, the stiffness of dolomite residuum has traditionally been viewed as relatively low. For reasons of economy, available dolomite residuum stiffness data mostly stem from plate load tests on each of the materials forming the residual profile, typically chert gravels and wad, rather than on the actual mix of materials that typically occurs in situ .

the geology of south africa by alex. l. du tort d.se .• f.g.s., f.r.s. with 41 plates, 73 text-figures, and a geological map third edition revised and enlarged

References 1 F. M. von Wagener Engineering Construction on Dolomite PhD thesis University of Natal Published by Geo. Div. SAICE Johannesburg 1983 2 F. M. von Wagener Dolomites - Problem Soils in South Africa - State of the Art The Civil Eng. in S.A. 27 July 1985 3 P. W. Day, and F. M. von Wagener Investigation techniques on dolomites in South ...

Full text of "Geology of the Transvaal / by G.A.F. Molengraaff ; Translated from French by ..." See other formats ...

Geology. She spent the last eight of these years predominantly working on dolomite stability report reviews for housing and infrastructure development, and on dolomite research, having received her Master's in 2013 from the University of Pretoria. She is registered with SACNASP (South African Council for Natural Scientific Professions) and is a

In South Africa, the Malmani Subgroup has a sheet-like geometry (Eriksson and Altermann, 1998) and is divided into five formations (Fig. 2), mainly comprising stromatolitic dolomite with ...

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See phone loading... 082 932 8465; See fax loading... 086 516 8363 P O Box 1910 Silverton, 0127 Pretoria, Gauteng How to get ... Engineering Geology Pretoria, Dolomite Stability Investigations Pretoria, Construction Materials Pretoria, Business Consulting Pretoria ...

OCLC Number: 1738099: Notes: Summary in Afrikaans. Revision of the author's thesis--University of Pretoria. Errata slip inserted. Description: viii, 114 pages .

of Pretoria. A detailed description of the geology of the pipe is provided by Bartlett (1994) and the following information is taken from that publication. Based on information from surface and underground exposure and crustal xenoliths, the pipe intruded dolomite, shale, and quartzite of the Transvaal Sequence, norite of the

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Buy Memoir (Volume 1) by Transvaal Geological Survey (ISBN: 9781235720062) from Amazon's Book Store. Everyday low prices and free delivery on eligible orders.

Jan 01, 1993· Journal of African Earth Sciences, Vol. 16, No. 1/2, pp. 25-51, 1993. 0899-5362/93 $6.00+0.00 Printed in Great Britain 1993 Pergamon Press Lid The Transvaal Sequence: an overview P. G. EpaxssoN, J. K. SCHW~nZZR~, P. J. A. Bosch2, U. M. SCHEREIBER, J. L. VAN DEVE~TER3 and C. J. HATTON4 Dept of Geology, University of Pretoria, Pretoria 0002, .

THE GEOLOGY OF THE COUNTRY AROUND PRETORIA ABSTRACT The area is bounded by latitudes 250 30' and 260 0' Sand longitudes 270 30' and 280 30' E and is approximately 5 440 km 2 in area. It is densely populated around Pretoria and well served by roads and railways. Alti
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