Diamond core drilling ( exploration diamond drilling ) utilizes an annular diamond-impregnated drill bit attached to the end of hollow drill rods to cut a cylindrical core of solid rock.
32.
Queenstone Resources Ltd . rose C $ 0.01 to C $ 2.70 after it said it has completed its first phase diamond drilling program at its Jabali gold project in Mexico.
33.
In 1953, as an employee and eventual partner of promoter Joseph Hirshhorn, he persuaded his partner to finance diamond drilling of a previously dismissed area of surface radioactivity near Blind River, Ontario.
34.
At the end of the exploration programme in 1980, over of diamond drilling had been undertaken, outlining a resource of 0.17 % tungsten trioxide and 0.025 % tin over 49.6 million tonnes.
35.
Exploration was continued in all likely areas, from diamond drilling in the Glencoyne Level at the north end, to an extension of the 175 Fathom Level beyond the Clay Vein at the south end.
36.
For example, Energold Drilling would provide diamond drilling services for projects with limited infrastructure and focus on portability, whereas larger drilling groups such as Boart Longyear tended to work on established producing mine sites.
37.
In March 1966, MIM consolidated its mining lease holdings by taking up all the territory between Hilton and the Mount Isa operations within a single Special Mining Lease and diamond drilling recommenced at Hilton.
38.
Queenstone Resources Ltd . rose C $ 0 . 01 to C $ 2 . 70 after it said it has completed its first phase diamond drilling program at its Jabali gold project in Mexico.
39.
In 1986, Longyear acquired three more companies : Morissette, an underground and surface diamond drilling firm; Brainard-Kilman, a maker of civil engineering devices, such as well monitoring and test equipment; and ChemGrout a mfg of cement grouting equipment.
40.
Numerous lease options were entertained, diamond drilling undertaken, and many claims were staked around the larger Bodie property in anticipation of its historic mines'reopening, but the later precipitous drop in the price of gold shelved all plans for large-scale development.
