core drill

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  • noun

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a drill that removes a cylindrical core from the drill hole

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References in periodicals archive ?
In 2012, the global core drill market reached a plateau.
Sweden-based Atlas Copco boasts the worlds major core drill producer.
The core drill hole 98-33 was to determine the extent of gold mineralization in the "North Gil" gold anomaly.
Four of five planned core drill holes over approximately 1,450 meters have been completed.
The company said the drill project at GK6 will include at least two core drill holes to a minimum depth of 150 meters.
2-inch diameter) diamond core drill with which directional "daughter" holes will be drilled toward the mineral targets defined by the downhole geophysics.
Due to the lack of visible outcrop and historical "minera" (independent, small scale miner) workings on Sor Teresita, the exploration team relied on ground and airborne geophysics, auger drilling, mechanical trenching and to the greatest extent the soil geochemical program to determine diamond core drill locations.
The diamond core drill program is expected to consist of two phases totaling approximately 45,000 feet.
has been contracted to complete the core drill program, and J.
2 inch diameter) diamond core drill and directional diamond core holes will be drilled toward the mineral targets defined by the in-hole geophysics; that the budget plans for forty-eight diamond core holes consisting of 32,160 feet of core drilling; and that it is expected to cost less than half of standard drilling approaches.