We have seen in the previous topics that discontinuities are critical for the behavior of a rock mass. Hence, for most engineering projects, it’s important to detect the presence of discontinuities and characterise the discontinuities. When it comes to the field, what we actually see of the discontinuities, most of the time, we see only … Read more
In this topic, we will present two important aspects of discontinuities, namely the roughness and shear strength. These two properties are critical when it comes to the stability of a rock mass in which these discontinuities are present and like for the intact rock, the mechanics of a rock joint is that of a contact … Read more
In this topic, we’ll present you some of the laboratory tests that can be performed to infer rock materials strength. It is important for you to know what type of tests can be done and what types of information we can gather from them.The simplest test to perform is the unconfined compression tests that will … Read more
In topic one, we introduced stress and strain. These 2 variables are related because application of a stress results in a strain. In this topic, we will see how a specimen of intact rock responds when it is subjected to a simple compression. So, if we consider specimens, such as this one with flat ends, … Read more
Mining is a temporary land use, so having found, evaluated, designed, planned and operated that mine in a safe environmentally responsible way. It remains or us to tidy up, and then to hand the land over to some future productive use. There is a societal expectation that post mining the land will be returned to … Read more
Mining operates under a social license, but its benefits should outweigh its negative impacts. Responsible mine operators accept this and they design their operations to be socially responsible. However to protect the environment and society against the negative impacts of mining regulatory frameworks are put in place to guide the assessment of mining proposals before … Read more
https://www.youtube.com/watch?v=56MrNa7vg18 For a bunch of his detailed information in the mines but I learned from him and since the class I’ve been out to his place a few times and so I have enough that I can present a Liberty gold lecture and now I have a Liberty Gold lecture for my class and it … Read more
This section on Carlin Style Mineralisation Deposit Examples will give you a quick run through of a couple of actual Carlin deposits to give an idea of their characteristics; we will begin with Barrick’s goldstrike deposit, it’s in the north of the Carlin trend. Gold strike is the mother and father of Carlin deposits and is responsible … Read more
Mesothermal gold deposits form half way up through the rise of the melt from the deep crust to the surface usually at a depth of less than 10 km but greater than 1 km. temperatures at these depths are generally somewhere between 450 degrees and 250 degrees Celsius. The term mesothermal veins is really a … Read more
The geological theory of Plate Tectonics and the Associated Mineralization Process relating to the formation of ore deposits is a hugely complicated process with the myriad contributing variables such as rock and fluid compositions, temperature, pressure pH, eH, structure and time, all interacting to provide a host of different outcomes. In truth ore deposits and … Read more