The Weathering of Nickel Sulfide Deposits and Implications for Geochemical Exploration

2006 ◽  
pp. 139-165
Keyword(s):  
Nickel Sulfide ◽  
Geochemical Exploration ◽  
Sulfide Deposits

Cross‐borehole delineation of a conductive ore deposit in a resistive host—experimental design

Geophysics ◽  
2001 ◽  
Vol 66 (3) ◽  
pp. 824-835 ◽  
Author(s):  
David Johnson ◽  
Elena Cherkaev ◽  
Cynthia Furse ◽  
Alan C. Tripp
Keyword(s):  
Nickel Sulfide ◽  
Sulfide Deposit ◽  
Wave Analysis ◽  
Geological Structures ◽  
Ore Deposit ◽  
Sulfide Deposits ◽  
Full Wave ◽  
Full Wave Analysis ◽  
Optimal Weighting ◽  
Difference Time

The finite‐difference time‐domain method is used for high‐resolution full‐wave analysis of cross‐borehole electromagnetic surveys of buried nickel sulfide deposits. The method is validated against analytical methods for simple cases, but is shown to be a valuable tool for analysis of complicated geological structures such as faulted or layered regions. The magnetic fields generated by a wire loop in a borehole near a nickel sulfide deposit are presented for several cases. The full‐wave solution is obtained up to 200 MHz, where quasi‐static methods would have failed. The dielectric response is included in the solution, and the diffractive nature of the field is observed. The sensitivity of each receiver in a vertical line in the cross borehole is presented and analyzed to provide an optimal weighting for receivers that can be applied to an experimental study.

The Honeymoon Well nickel sulfide deposits, Western Australia

1981 ◽  
Vol 76 (6) ◽  
pp. 1550-1564 ◽  
Author(s):  
M. J. Donaldson ◽  
G. J. Bromley
Keyword(s):  
Western Australia ◽  
Nickel Sulfide ◽  
Sulfide Deposits
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