| Title | Surficial geology, spectral-reflectance characteristics, and their influence on hyperspectral imaging as a drift-prospecting technique for kimberlite in the Diavik diamond mine area, Northwest
Territories |
| Download | Downloads |
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| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Kerr, D; Budkewitsch, P; Bryan, D; Knight, R ; Kjarsgaard, B |
| Source | Geological Survey of Canada, Current Research (Online) no. 2002-C4, 2002, 10 pages, https://doi.org/10.4095/213167  Open Access |
| Image |  |
| Year | 2002 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| Related | This publication is contained in Current Research 2002,
winter release |
| File format | pdf (Adobe Acrobat Reader) |
| Province | Northwest Territories |
| NTS | 76C; 76D |
| Area | Lac de Gras |
| Lat/Long WENS | -112.0000 -108.0000 65.0000 64.0000 |
| Subjects | surficial geology/geomorphology; economic geology; kimberlites; pipes; diamond; indicator elements; drift deposits; glacial deposits; tills; reflectance; bedrock geology; glacial history; remote
sensing; Quaternary |
| Illustrations | sketch maps; graphs; tables; photographs |
| Released | 2002 02 15 |
| Abstract | Numerous kimberlite pipes have been discovered in the Lac de Gras area, but detection of new pipes is proving more and more difficult in areas characterized by thick overburden cover and few kimberlite
indicator minerals in till. This paper summarizes the surficial geology and provides preliminary analyses of the spectral-reflectance characteristics of kimberlite, till, and bedrock for kimberlite exploration in the Diavik mine area. Proglacial
sediments deposited prior to glaciation may protect the kimberlite from glacial erosion and therefore no kimberlitic debris is produced. Field and laboratory spectrophotometer measurements were made of bedrock, till, and kimberlite material to
document their reflectance properties. Fourteen samples from till of varied thicknesses were tested and all have relatively similar reflectance char-acteristics. However, significant differences exist in the spectral-reflectance characteristics of
the till andkimberlite material in the 400 to 2500 nm range. |
| GEOSCAN ID | 213167 |
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