In the late 1970s to early 1980s Ordinary Kriging (OK) became the block grade estimation method of choice. This was mainly due to it being an unbiased estimation method that attempts to minimize the extension (estimation) variance of the estimate.
Many mining companies are cutting exploration budgets to survive the current mining downturn and low commodity prices. As a result, some firms either do not have enough geological and support staff or they have inexperienced staff members who do not adequately understand the geology, mining method used and processing aspects of their operation or project...
Narrow veins are major sources of many commodities, including gold, [...]
Sensible valuation of mineral properties has become more critical through [...]
The following discussion and guidance focuses on areas to which, [...]
Introduction Almost all Mineral Resources reports prepared in accordance with [...]
There is no international agreement on the terminology for each [...]
Investment in new mines has declined in Canada and Australia [...]
Until the digital era, mining companies operated internal libraries which [...]
Technology allows us to continuously measure things to ever-increasing levels [...]