| Title | Feasibility study for using high-resolution seismic methods to estimate kimberlite deposit volumes at the Snap Lake diamond mine, Northwest Territories |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Snyder, D ;
Bellefleur, G |
| Source | Geological Survey of Canada, Current Research (Online) no. 2005-C3, 2005, 11 pages, https://doi.org/10.4095/220710  Open Access |
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| Year | 2005 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf |
| Province | Northwest Territories |
| NTS | 75M/10 |
| Area | Snap Lake |
| Lat/Long WENS | -111.0000 -110.5000 63.7500 63.5000 |
| Subjects | economic geology; geophysics; kimberlites; diamond; mineral occurrences; geophysical surveys; seismic surveys; seismic resolution; feasibility studies; seismic velocities; velocity surveys; Slave
Craton; Defeat suite |
| Illustrations | sketch maps; seismic profiles; seismic maps |
| Released | 2005 07 01 |
| Abstract | Anovel, ultra-high-resolution application of crossborehole seismology was tested at the Snap Lake diamond mine of De Beers Canada Inc. to assess whether the relatively thin kimberlite dyke that hosts
the diamonds could be mapped underground with sufficient resolution to estimate accurately its volume and to guide mining. Subsequent mining and geological mapping within the test panel demonstrated that the technique was able to map the top and
bottom surfaces of the dyke and to identify ramps and pinch-outs of the dyke as well as crosscutting fracture planes. In planning of the present test, De Beers Canada Inc. was advised to also trial two other geophysical methods beside the explosive
sources used here. Comparison with higher frequency vibrating seismic and radar sources suggests that radar is the most effective technique in this specific application. |
| GEOSCAN ID | 220710 |
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