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Rock chip sampling is sampling of exposed potentially mineral-bearing rocks. Chips are taken during initial mapping, and if promising results are returned, a subsequent soil sampling survey undertaken. Alternatively, in many cases, outcrops maybe either minor or non-existent, and soil sampling is a key next step for an exploration programme.
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BULK SAMPLING In bulk sampling, samples are taken in large quantities. Drill core samples may be large, or a certain amount of material taken from the trench by using a bulldozer. 4. CHANNEL SAMPLING This method can be used in the sediment contained in the surface and also in an underground mine. For shallow sediments, this method is .
Statistical Sampling in Auditing ... bodies allow for either selection method. Judgemental Sampling ... The advantages of statistical sampling are numerous:
Exploration sampling - Mining Intelligence and Technology. Exploration sampling At a time when the, evaporation methods post drilling to retrieve, designed in accordance with International Mining SAMPLING .
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Disadvantages of Sampling. Every coin has two sides. Sampling also have some demerits. Some of the disadvantages are: Since choice of sampling method is a judgmental task, there exist chances of biasness as per the mindset of the person who chooses it. Improper selection of sampling techniques may cause the whole process .
Mountaintop-removal mining, for example, allows mining companies to extract a significant amount of coal at a far lower cost, but its destructiveness has led to protections for the environment. Traditional forms of mining can be unsafe for workers. Fires and collapses can be deadly, and the health effects of mining can be devastating.