Relating high-resolution tilt measurements to the source displacement of an M2.2 event located at Mponeng gold mine

Japanese-German research at Mponeng gold mine, South Africa

A unique experiment, called JAGUARS (JApanese-German Underground Acoustic emission Research in South Africa), involved the installation and monitoring of several sensitive seismic instruments from 2007 to 2009 at Mponeng gold mine, South Africa (Figure 1).

Sample of a marine placer gold deposit

A placer deposit is a naturally occurring phenomenon in which detrital or residual material containing valuable minerals is accumulated through weathering of the source rocks and mechanically deposition either on land or in large water bodies such as lakes or oceans. Primary mineral elements such as gold, silver, and diamonds are examples of placer  materials. Cronan (1980) classifies placer minerals into two broad groups: namely, heavy mineral placers and light heavy mineral placers, based on the specific gravity of the minerals. Minerals such as cassiterite, platinum, and gold are high specific gravity minerals with specific gravities ranging from 6.8 to 21.

best practice in Sampling

In a keynote address at the Sampling 2008 conference in Perth, François-Bongarçon (2008) stated that the modern sampling theory (the Theory of Sampling – TOS) is enjoying its golden age, sixty years after its inception and after alternate periods of acceptance and
rejection by the industry. Pollard et al. (2009) explained that, from their experience in
industry, education, training, and professional development, the minerals industry regards
sampling as an important part of its operations, but often does not recognize the
differences between good and bad sampling practices.

gold production

An interesting Gold Mining Company , minerals come from five different mine shafts and four different waste discharges containing rocks are marginal ore processed in a joint plant to produce gold bars.