The majority of seismic activity in South Africa is related to extensive mining operations, usually in close proximity to densely populated areas where a relatively weak seismic event could cause damage. Despite a significant ...
Merkle, R.K.W. (Roland Karl Willi), 1954-; Malitch, Kreshimir Nenadovitch; Graser, Peter P. H.; Badanina, Inna Yu.(Japan Association of Mineralogical Sciences , 2012-01)
Native osmium from two different placer occurrences
(i.e., Ingaringda and Burlakovsky) within the Guli
Massif, Maimecha-Kotui Province, was evaluated for mineral
compositions that show systematic differences between ...
The problem considered in this study is that of unrealistic ground motion estimates, which arise in the Cornell–McGuire method when the seismic hazard curve is calculated for extremely low annual probabilities of exceedance. ...
Bamisaiye, O.A.; Eriksson, Patrick George; Van Rooy, J.L. (Jan Louis); Brynard, H.M.; Foya, S.; Billay, A.Y.; Nxumalo, V.(Elsevier, 2017-08)
Faults and other structural features within the mafic-ultramafic layers of the Bushveld Complex have been a major issue mainly for exploration and mine planning. This study employed a new approach in detecting faults with ...
Saunders, I.; Kijko, Andrzej; Fourie, C.J.S.(Geological Society of South Africa, 2016)
We analyzed the changes/improvements of seismic event detection and location accuracy of the South African
National Seismograph Network over the last four decades. The effect of three regional velocity models on
Richards, Ralph John(University of Pretoria, 1987)
The stratigraphy , sedimentology and geochemistry of. the upper Transvaal
Sequence rocks in the northern portion of the Rooiberg Fragment are
The Leeuwpoort Formation of the Pretoria Group was deposited in ...
During the refining of steel by basic processes, a multitude of mineralogical
reactions take place in the refractories with which the furnace
is lined. The reactions are caused by an influx of material from
the slag and ...
Jansen van Vuuren, Melchior Changuion(University of Pretoria, 1989)
From available records and data of colliery product samples, an area
within the Witbank and Highveld coalfields was selected for this study.
The petrographic and elemental nature of the coal seams have been
derived from ...
Low-grade tin deposits occur within the apex of the Bobbejaankop
Granite intrusion at the Zaaiplaats Tin Mine. The finegrained
hood-facies of the Bobbejaankop Granite, called the
Lease Granite, seems to be intrusive ...
Strydom, Johan Hendrik(University of Pretoria, 1983)
A mineralogical and geochemical investigation of the country rock
around pipe-like ore bodies in the Lease Granite was undertaken to
obtain a better understanding of the conditions of formation of the
pipes. It was also ...
Dinsdale, John Lister(University of Pretoria, 1982)
Pocket mineralisation is the name applied to podlike
bodies of coarse-grained rock which are the result
of alteration of sediments. In some areas pockets
are cassiterite bearing, and these pockets have been mined
Wetie Ngongang, Ariane(University of Pretoria, 2017)
Mount Cameroon is considered the only active volcano along a 1600 km long chain of volcanic complexes called the Cameroon Volcanic Line (CVL). It has erupted seven times during the last 100 years, the most recent was in ...
Traditional float and sink analyses are undertaken to determine the washability of coal. Float and sink analyses are costly, require toxic heavy organic liquids and the procedure to wash and dry the float and discard ...
Lehong, Keabetswe Dimakatso(University of Pretoria, 2017)
Marion Island is a sub-Antarctic island which lies 300 km south of the South West Indian Ridge. The island is extensively affected by two periods of volcanism with the oldest erupting during the Pleistocene and the younger ...
Oyelami, C.A.; Van Rooy, J.L. (Jan Louis)(Springer, 2016-12)
Lateritic soils which have been described as highly weathered tropical or subtropical residual soils were studied with an attempt to establish its suitability or otherwise as sustainable material in building bricks and ...
Morekhure-Mphahlele, Refilwe; Focke, Walter Wilhelm; Grote, Wiebke(Acoustical Society of America, 2017-03)
Two traditional cosmetic clays bear similar names in different local South African languages: vumba
(Tshivenda) and ubumba (isiZulu). The wet clays are applied topically for cosmetic purposes by the
respective indigenous ...
Kijko, Andrzej; Smit, Ansie(Seismological Society of America, 2012-06)
The Aki (1965) maximum likelihood estimate of the Gutenberg–Richter
b-value is extended for use in the case of multiple catalogs with different levels of
completeness. The most striking feature of this newly derived ...
The impacts associated with unconventional oil and gas (UOG) extraction will be cumulative in nature
and will most likely occur on a regional scale, highlighting the importance of using strategic decision-making and
Jones, Brendon Ronald; Brouwers, Luke B.; Van Tonder, Warren D.; Dippenaar, Matthys Alois(Springer, 2017-05)
The vadose zone typically comprises soil underlain
by fractured rock. Often, surface water and groundwater parameters
are readily available, but variably saturated flow
through soil and rock are oversimplified or estimated ...
Koleini, Mehran; Van Rooy, J.L. (Jan Louis); Bumby, Adam John(Springer, 2012-09)
The Zagros Mountains Range is an important
structural unit in south western Iran and accommodates a
significant portion of the 2.5 cm/year convergence between
Arabia and Eurasia. This structural unit includes folds,