BASE AND PRECIOUS METALS EXPLORATION
Using MT Technologies For Rapid, Cost-Effective and Accurate Detection of Mineralization
Mining Companies Increasingly Use MT Methods
As the search for new ore deposits moves ever deeper, both major and junior mining companies are increasingly using MT and AMT for both brownfields and greenfields exploration. INCO's 1991 proof-of-concept study in Sudbury, Ontario started this trend with two AMT sites that sensed a 1750 meter-deep nickel deposit. Falconbridge followed with a feasibility study in 1996 that accurately located two Ni-Cu mineralized zones at ~800 m and ~1350 m.
Since then, Falconbridge has acquired over 2000 MT/AMT sites in the Sudbury basin and elsewhere. In 1999, INCO acquired ~1500 MT/AMT sites at the Voisey's Bay nickel deposit discovered in 1996. Today, thousands of MT/AMT sites are measured every year
by worldwide companies, demonstrating the value that industry players place on these techniques.
Tomorrow's mineral discoveries will likely come from depths greater than known ore bodies and may be covered by thick layers of overburden. Finding these deposits requires more sophisticated technology than traditional prospecting methods. Phoenix MT/AMT technology answers that need. MT/AMT is a proven supplement or alternative to expensive traditional approaches like diamond drilling and borehole geophysics and less-costly but shallow-penetrating airborne EM techniques.
Mining MT/AMT is used around the world, including locations in Canada, the USA, Mexico, Chile, Bolivia, Peru, Argentina, Australia, Papua New Guinea, China, Russia, Uzbekistan, and Japan.
KennecottPhelps-DodgeAlrosaNorilsk NickelChina National Non-Ferrous Metals Corp.Sumitomo Metal Mining Corp.Navoi Mining and Metallurgical KombinatCrowflight MineralsFalconbridgeFalconbridge NickelINCONuinsco Resources Ltd.Resources Manicouagan
What our Clients say...
Letters of reference from our customers:
deep rapid reconnaissance and detailed follow-up
From near-surface down to any practical drilling depth and beyond, MT allows rapid reconnaissance of areas
as large as tens of square kilometers, while detecting conductive zones to 2000 m and deeper.
Closely spaced stations along lines or nets provide data redundancy, high lateral resolution, and a continuous picture of the subsurface resistivity structure
In a two-pass methodology, station and line spacing are as wide as possible in the first pass to keep cost to a minimum. Once areas of interest have been identified, a second pass with more stations at closer spacing increases resolution. The result is rapid, accurate, and cost-effective
identification of conductive mineralized zones.
Plan maps of apparent resisitivity and phase highlight conductive bodies at specific depths (click picture to enlarge it).
rapid, cost-effective mapping of conductive zones
Equipment weighs only 30 kg per site, so it's portable by backpack, ATV, snowmobile, or helicopter, from tundra to jungle, in any season. This logistic simplicity reduces cost and increases productivity
The small footprint and environmentally benign installation make the technique practical almost anywhere
Flexible site location and offline sensitivity allow meaningful profiles to be constructed without the rigid grid of methods
like seismic and IP.
Induction vectors indicate the direction and relative strength of offline conductors and are especially useful where the surface is resistive or frozen
(no electrodes required).
MT/AMT sees through the thick conductive clay
(impenetrable by airborne or other surface techniques) that covers many prospective areas.
"There is no doubt in my mind that the Phoenix MT equipment
is by far the best…for detecting deep targets."
D. Hume, Chairman, Nuinsco Resources
visualize structural features and anomalies
Induction vectors (mapped from innovative, rapid 3-H
soundings) point to conductive bodies
Pseudosections along profile lines show approximate size, depth,
location, and strength of conductive anomalies
2-D inversion reveals characteristics such as the high dip
angle of this conductor (click picture to enlarge it).
To learn more