...G. Kwiatek; K. Plenkers; M. Nakatani; Y. Yabe; G. Dresen; JAGUARS-Group Abstract This article aims to investigate the frequency-magnitude characteristics and lower magnitude limits of the microseismic catalog recorded with a seismic network sensitive to high frequencies at Mponeng mine, South...

.... It is located in the Mponeng gold mine (Carletonville, Republic of South Africa) at a depth of 3,540 m. The Mponeng gold mine is managed by Anglo Gold Ashanti and is currently the deepest mine in the world (>3,780 m). The gold is mined from the Witwatersrand formation. The gold-carrying sedimentary layer...

...G. Kwiatek; K. Plenkers; G. Dresen; JAGUARS Research Group Abstract We investigate the source parameters of picoseismic and nanoseismic events ( M w >-4.1) recorded with a high-sensitivity seismic network at the Mponeng gold mine in South Africa to gain new insights into the scaling of small...

...Johan P.R. de Villiers; David C. Liles Abstract The crystal structure of a 6 C pyrrhotite from Mponeng Mine, South Africa, has been refined using starting atomic parameters postulated by Koto et al. (1975) . This pyrrhotite is monoclinic and is described in the non-standard space group Fd , so...

... of the standard deviation σ or the amplitude of the noise. Figure  1a shows values of τ p ( t ) for white noise with a standard deviation of 1.0 m/sec. We assume Δt =0.0668 msec (15 kHz), the same as the waveform data in the Mponeng gold mine in the Republic of South Africa (see the section Data...

...Figure 1. Sketch of the location of the JAGUARS network in the Mponeng gold mine and its surrounding geologic formations. The JAGUARS network is located at 3540 m depth. The sensors are located in boreholes that are shown as bold black lines. The PG dike is shown in gray. The gold reef...

...Figure 1. Observation network deployed at the Mponeng gold mine, South Africa, to detect very small fractures. (a) Station layout of the AE network. Black solid lines, boreholes used to install the sensors. Circles, AE sensors (open circles: up to 200 kHz; filled circle: up to 100 kHz). Open...

... evolution of aftershocks in Mponeng gold mine performed by Kozłowska et al. (2015) showed that the approach, which is usually used for natural earthquakes, also performed well in the mining environment. The analysis was based on the unique catalog of > 9000 microaftershocks recorded...

...Figure 1. Southern Africa (top) and Far West Rand mining district, Republic of South Africa (bottom). The data in this study are from Deelkraal, Elandsrand, and the three Western Deep Levels mines (Mponeng, TauTona, and Savuka). Open outlines are lease areas of other mines in the region. ...

...Figure 1. Seismic stations (triangles) operating in the TauTona and Mponeng Gold Mines in South Africa (see inset map in [a] for regional location) during September 2007. (a) Cross‐section view of TauTona and Mponeng working faces and permanent seismic stations (small downward triangles...

.... In Mponeng all of the mining to date is from the VCR shown as a dashed line. ...