probe hole

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probe hole

mining

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mining
Exploration
…technique is the drilling of probe holes. In this practice a drill with a diamond-tipped bit cuts a narrow kerf of rock, extracting intact a cylindrical core of rock in the centre (see core sampling). These core holes may be hundreds or even thousands of metres in length; the most…
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…technique is the drilling of probe holes. In this practice a drill with a diamond-tipped bit cuts a narrow kerf of rock, extracting intact a cylindrical core of rock in the centre (see core sampling). These core holes may be hundreds or even thousands of metres in length; the most…
Read More