Three-dimensional Reflection Seismics Surfs the Crest of the Platinum Wave (Best of SAGA)

Trickett, J.C.; Düweke, W.; Kock, Schalk

doi:10.3997/2214-4609.20147627

Cited by 3 publications

(3 citation statements)

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“…It clearly shows the potential of reflection seismic methods for imaging of large-scale structures hosting the mineralization in the area, e.g., the UG2 layer. The application of 2D and 3D reflection seismics in the Bushveld Complex has been described in the literature and reports (Campbell, 1990;Durrheim and Maccelari, 1991;Odgers et al, 1993;Davison and Chunnett, 1999;Larroque et al, 2002;Stevenson et al, 2003;Trickett et al, 2005Trickett et al, , 2007Trickett et al, , 2009. A comprehensive review is published by Campbell (2011).…”

Section: Wc182mentioning

confidence: 99%

Seismic methods in mineral exploration and mine planning: A general overview of past and present case histories and a look into the future

et al. 2012

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Due to high metal prices and increased difficulties in finding shallower deposits, the exploration for and exploitation of mineral resources is expected to move to greater depths. Consequently, seismic methods will become a more important tool to help unravel structures hosting mineral deposits at great depth for mine planning and exploration. These methods also can be used with varying degrees of success to directly target mineral deposits at depth. We review important contributions that have been made in developing these techniques for the mining industry with focus on four main regions: Australia, Europe, Canada, and South Africa. A wide range of case studies are covered, including some that are published in the special issue accompanying this article, from surface to borehole seismic methods, as well as petrophysical data and seismic modeling of mineral deposits. At present, high-resolution 2D surveys mostly are performed in mining areas, but there is a general increasing trend in the use of 3D seismic methods, especially in mature mining camps.

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Section: Wc182mentioning

confidence: 99%

Seismic methods in mineral exploration and mine planning: A general overview of past and present case histories and a look into the future

et al. 2012

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“…2D reflection seismic, gravity, magnetics and drilling). The method has been widely used to image the structurally‐complex gold‐bearing Witwatersrand Basin and platinum‐bearing Bushveld Complex, providing high‐resolution images of the ore body prior to the sinking of shafts and the development of tunnels (Gibson et al., 2000; Pretorius et al., 1994; Pretorius et al., 2000; Trickett et al., 2005). However, the method has not been routinely used with mine seismology to mitigate the risks associated with mining‐induced seismicity.…”

Section: D Reflection Seismic and Geological Datamentioning

confidence: 99%

Using legacy 3D seismic data and source parameters of mining‐induced earthquakes to mitigate the risk of rockbursting in Kloof Gold Mine, South Africa

Masethe

Manzi

Durrheim

2023

Geophysical Prospecting

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Rockbursts pose a significant risk in deep gold mines in the Witwatersrand Basin of South Africa as they may damage the excavation, injure workers, and delay production. We analysed the source mechanisms of 75 large mining‐related seismic events (ML 1.5–2.7) that caused damage to stopes in Kloof Gold Mine and used legacy 3D reflection seismic data to delineate the ore body and geological structures that may be correlated with mining‐related seismic events. The 75 seismic events took place at depths of 1600–4200 m below surface. Most events were located close to stopes mining the Ventersdorp Contact Reef ore body. The S‐to‐P‐wave energy ratio (Es/Ep) from the analysed seismic events ranged from 1.1 to 19.9. The source mechanisms of mining‐induced seismic events aid in understanding the dominant modes of failure. Planes of weakness may be the result of mining‐induced stresses or pre‐existing geological structures such as faults and dykes. The Es/Ep ratio, focal mechanism and moment tensor solutions were correlated to the underground mapped and seismically defined geological structures. Approximately 44% of the events showed strong correlation with the known underground mapped and seismically imaged geological structures (faults and dykes), whereas 56% of the events were related to elements of the mining geometry (dip pillars, abutments and remnants). This information enables mining layouts to be modified to minimize the risk of rockbursting.

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“…Most of the earlier studies (Van Der Merwe, 1978;Meyer and De Beer, 1987;Du Plessis and Walraven, 1990;Bumby et al, 1998;Friese and Chunnett, 2004;Nex, 2005) are limited to observation of structural features at the surface or features exposed by mining activities close to the surface. Usually such structures are identified using magnetic (Campbell, 2011), aeromagnetic (Cole, 2013;Campbell, 2006;Campbell , 2011), gravity (Campbell, 2011;Du Plessis and Kleywegt, 1987), and seismic data (Du Plessis and Levitt, 1987;Odgers et al, 1993;Odgers, 1998;Trickett et al, 2005;Campbell, 2006;Campbell, 2009). More detailed studies on the nature of these structures are, however, confined to several meters below the sub-surface.…”

Section: Introductionmentioning

confidence: 99%

Merger and acquisitions in South African banking: A network DEA model

Maredza

Gupta

2017

Research in International Business and Finance

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Three-dimensional Reflection Seismics Surfs the Crest of the Platinum Wave (Best of SAGA)

Cited by 3 publications

References 0 publications

Seismic methods in mineral exploration and mine planning: A general overview of past and present case histories and a look into the future

Seismic methods in mineral exploration and mine planning: A general overview of past and present case histories and a look into the future

Using legacy 3D seismic data and source parameters of mining‐induced earthquakes to mitigate the risk of rockbursting in Kloof Gold Mine, South Africa

Merger and acquisitions in South African banking: A network DEA model

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