Western Copper said recent diamond drilling at the property showed " massive to semi-massive sulfides ", possibly indicating the presence of copper, zinc, lead, gold and silver.
22.
Completing this task required the development of innovative engineering techniques for mechanized diamond drilling underwater without the assistance of divers, and experimentation with a range of explosives.
23.
Modern gold exploration was initiated in 1962 with the Bureau of Mineral Resources undertaking surface geochemistry, limited geophysics and diamond drilling during 1962 and 1963 at Kulumadau.
24.
The rig is first set up to drill as an RC rig and once the desired metres are drilled, the rig is set up for diamond drilling.
25.
Diadem Resources Ltd . fell C $ 0 . 40 to C $ 5 . 15 after it released diamond drilling results from its Indonesnia zinc-lead-silver deposit.
26.
Western Copper said recent diamond drilling at the property showed " massive to semi-massive sulfides, " possibly indicating the presence of copper, zinc, lead, gold and silver.
27.
Big Dan Mines Limited carried out a resistivity survey and } } of diamond drilling in 11 holes to assess the mine's production potential, but results were not encouraging.
28.
"' Julie White "'( born 1967 ) is a British businesswoman and entrepreneur, who has risen to prominence after becoming the managing director of a multimillion-pound diamond drilling company.
29.
Modern gold exploration was initiated on Woodlark Island in 1962 with the Bureau of Mineral Resources undertaking surface geochemistry, limited geophysics and diamond drilling during 1962 and 1963 at Kulumadau.
30.
Multi-combination rigs are a dual setup rig capable of operating in either a reverse circulation ( RC ) and diamond drilling role ( though not at the same time ).
